2026-07-26NOTABLEAn espionage toolkit that only decrypts its final implant on the target machine, and talks C2 through the Telegram Bot API
MIXEDKEY
tool · tool:mixedkey single-source
Reflective loader stage of the TELESHIM / MIXEDKEY / BINDCLOAK espionage toolkit documented by Zscaler ThreatLabz against Middle East government entities. Shares the chain's heavy obfuscation (control-flow flattening, mixed boolean arithmetic and opaque predicates) and loads the final BINDCLOAK implant into memory (Zscaler ThreatLabz, 2026-07-20).
Coverage
1
first 2026-07-26 → last 2026-08-10
Latest activity
2026-08-10
An espionage toolkit that only decrypts its final implant on the target machine, and talks C2 through the…
Peak priority
notable
1 notable
Targets
public-sector
sectors: public-sector, energy · regions: middle-east
Sources cited
3
2 hosts
Defender insights
What each entry about MIXEDKEY tells a defender to do, newest first.
Latest update · triage
Relationships explore in graph
Typed, source-stated connections from the entity registry; each edge cites the entry whose reporting establishes it.
related to
- TELESHIMZscaler describes MIXEDKEY as the reflective loader stage of the same three-stage chain.
Story timeline
Hunting pivots
ATT&CK techniques (11 across 6 tactics)
11 techniques observed across 1 entry about this entity, derived from entry metadata and body evidence, never asserted without a published entry behind it · pinned to MITRE ATT&CK v20.0 · compare on the matrix · Navigator layer (JSON)
- ExecutionScheduled Task/Job: Scheduled Task · Hijack Execution Flow: DLL
- PersistenceScheduled Task/Job: Scheduled Task
- Privilege EscalationScheduled Task/Job: Scheduled Task · Access Token Manipulation: Token Impersonation/Theft · Access Token Manipulation: Make and Impersonate Token
- StealthObfuscated Files or Information · Access Token Manipulation: Token Impersonation/Theft · Access Token Manipulation: Make and Impersonate Token · Execution Guardrails: Environmental Keying · Hijack Execution Flow: DLL · Reflective Code Loading
- DiscoveryProcess Discovery
- Command and ControlNon-Application Layer Protocol · Web Service: Bidirectional Communication · Data Encoding: Non-Standard Encoding
Execution TA0002
T1053.005Scheduled Task/Job: Scheduled Task×1
Adversaries may abuse the Windows Task Scheduler to perform task scheduling for initial or recurring execution of malicious code. There are multiple ways to access the Task Scheduler in Windows. The schtasks utility can be run directly on the command line, or the Task Scheduler can be opened through the GUI within the Administrator Tools section of the Control Panel. In some cases, adversaries have used a .NET wrapper for the Windows Task Scheduler, and alternatively, adversaries have used the Windows netapi32 library and Windows Management Instrumentation (WMI) to create a scheduled task. Adversaries may also utilize the Powershell Cmdlet `Invoke-CimMethod`, which leverages WMI class `PS_ScheduledTask` to create a scheduled task via an XML path.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
T1574.001Hijack Execution Flow: DLL×1
Adversaries may abuse dynamic-link library files (DLLs) in order to achieve persistence, escalate privileges, and evade defenses. DLLs are libraries that contain code and data that can be simultaneously utilized by multiple programs. While DLLs are not malicious by nature, they can be abused through mechanisms such as side-loading, hijacking search order, and phantom DLL hijacking.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
Persistence TA0003
T1053.005Scheduled Task/Job: Scheduled Task×1
Adversaries may abuse the Windows Task Scheduler to perform task scheduling for initial or recurring execution of malicious code. There are multiple ways to access the Task Scheduler in Windows. The schtasks utility can be run directly on the command line, or the Task Scheduler can be opened through the GUI within the Administrator Tools section of the Control Panel. In some cases, adversaries have used a .NET wrapper for the Windows Task Scheduler, and alternatively, adversaries have used the Windows netapi32 library and Windows Management Instrumentation (WMI) to create a scheduled task. Adversaries may also utilize the Powershell Cmdlet `Invoke-CimMethod`, which leverages WMI class `PS_ScheduledTask` to create a scheduled task via an XML path.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
Privilege Escalation TA0004
T1053.005Scheduled Task/Job: Scheduled Task×1
Adversaries may abuse the Windows Task Scheduler to perform task scheduling for initial or recurring execution of malicious code. There are multiple ways to access the Task Scheduler in Windows. The schtasks utility can be run directly on the command line, or the Task Scheduler can be opened through the GUI within the Administrator Tools section of the Control Panel. In some cases, adversaries have used a .NET wrapper for the Windows Task Scheduler, and alternatively, adversaries have used the Windows netapi32 library and Windows Management Instrumentation (WMI) to create a scheduled task. Adversaries may also utilize the Powershell Cmdlet `Invoke-CimMethod`, which leverages WMI class `PS_ScheduledTask` to create a scheduled task via an XML path.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
T1134.001Access Token Manipulation: Token Impersonation/Theft×1
Adversaries may duplicate then impersonate another user's existing token to escalate privileges and bypass access controls. For example, an adversary can duplicate an existing token using `DuplicateToken` or `DuplicateTokenEx`. The token can then be used with `ImpersonateLoggedOnUser` to allow the calling thread to impersonate a logged on user's security context, or with `SetThreadToken` to assign the impersonated token to a thread.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
T1134.003Access Token Manipulation: Make and Impersonate Token×1
Adversaries may make new tokens and impersonate users to escalate privileges and bypass access controls. For example, if an adversary has a username and password but the user is not logged onto the system the adversary can then create a logon session for the user using the `LogonUser` function. The function will return a copy of the new session's access token and the adversary can use `SetThreadToken` to assign the token to a thread.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
Stealth TA0005
T1027Obfuscated Files or Information×1
Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
T1134.001Access Token Manipulation: Token Impersonation/Theft×1
Adversaries may duplicate then impersonate another user's existing token to escalate privileges and bypass access controls. For example, an adversary can duplicate an existing token using `DuplicateToken` or `DuplicateTokenEx`. The token can then be used with `ImpersonateLoggedOnUser` to allow the calling thread to impersonate a logged on user's security context, or with `SetThreadToken` to assign the impersonated token to a thread.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
T1134.003Access Token Manipulation: Make and Impersonate Token×1
Adversaries may make new tokens and impersonate users to escalate privileges and bypass access controls. For example, if an adversary has a username and password but the user is not logged onto the system the adversary can then create a logon session for the user using the `LogonUser` function. The function will return a copy of the new session's access token and the adversary can use `SetThreadToken` to assign the token to a thread.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
T1480.001Execution Guardrails: Environmental Keying×1
Adversaries may environmentally key payloads or other features of malware to evade defenses and constraint execution to a specific target environment. Environmental keying uses cryptography to constrain execution or actions based on adversary supplied environment specific conditions that are expected to be present on the target. Environmental keying is an implementation of Execution Guardrails that utilizes cryptographic techniques for deriving encryption/decryption keys from specific types of values in a given computing environment.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
T1574.001Hijack Execution Flow: DLL×1
Adversaries may abuse dynamic-link library files (DLLs) in order to achieve persistence, escalate privileges, and evade defenses. DLLs are libraries that contain code and data that can be simultaneously utilized by multiple programs. While DLLs are not malicious by nature, they can be abused through mechanisms such as side-loading, hijacking search order, and phantom DLL hijacking.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
T1620Reflective Code Loading×1
Adversaries may reflectively load code into a process in order to conceal the execution of malicious payloads. Reflective loading involves allocating then executing payloads directly within the memory of the process, vice creating a thread or process backed by a file path on disk (e.g., Shared Modules).
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
Discovery TA0007
T1057Process Discovery×1
Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common software/applications running on systems within the network. Administrator or otherwise elevated access may provide better process details. Adversaries may use the information from Process Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
Command and Control TA0011
T1095Non-Application Layer Protocol×1
Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive. Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
T1102.002Web Service: Bidirectional Communication×1
Adversaries may use an existing, legitimate external Web service as a means for sending commands to and receiving output from a compromised system over the Web service channel. Compromised systems may leverage popular websites and social media to host command and control (C2) instructions. Those infected systems can then send the output from those commands back over that Web service channel. The return traffic may occur in a variety of ways, depending on the Web service being utilized. For example, the return traffic may take the form of the compromised system posting a comment on a forum, issuing a pull request to development project, updating a document hosted on a Web service, or by sending a Tweet.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
T1132.002Data Encoding: Non-Standard Encoding×1
Adversaries may encode data with a non-standard data encoding system to make the content of command and control traffic more difficult to detect. Command and control (C2) information can be encoded using a non-standard data encoding system that diverges from existing protocol specifications. Non-standard data encoding schemes may be based on or related to standard data encoding schemes, such as a modified Base64 encoding for the message body of an HTTP request.
Evidence: 2026-07-26/teleshim-bindcloak-volume-serial-keying-government-espionage · ATT&CK page ↗
Entries about MIXEDKEY (1)
Co-occurring entities
Derived: referenced by the same focused operational entries (weekly summaries and report roundups don't count); ×N counts the shared entries.
Where this entity is cited
Source distribution
- zscaler.com2 (67%)
- securelist.com1 (33%)
All cited sources (3)
- securelist.comKaspersky GReAThttps://securelist.com/octlurk-silklurk-backdoors-central-asia/120840/
- zscaler.comZscaler ThreatLabzhttps://www.zscaler.com/blogs/security-research/targeted-attack-government-entities-middle-east-part-1
- zscaler.comZscaler ThreatLabzhttps://www.zscaler.com/blogs/security-research/targeted-attack-government-entities-middle-east-part-2