4 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)
StealthMasquerading: Match Legitimate Resource Name or Location
CollectionEmail Collection: Local Email Collection
ExfiltrationExfiltration Over Web Service: Exfiltration to Cloud Storage
Stealth TA0005
T1036.005Masquerading: Match Legitimate Resource Name or Location×1
Adversaries may match or approximate the name or location of legitimate files, Registry keys, or other resources when naming/placing them. This is done for the sake of evading defenses and observation.
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS). After a user logs on, the system generates and stores a variety of credential materials in LSASS process memory. These credential materials can be harvested by an administrative user or SYSTEM and used to conduct Lateral Movement using Use Alternate Authentication Material.
T1114.001Email Collection: Local Email Collection×1
Adversaries may target user email on local systems to collect sensitive information. Files containing email data can be acquired from a user’s local system, such as Outlook storage or cache files.
T1567.002Exfiltration Over Web Service: Exfiltration to Cloud Storage×1
Adversaries may exfiltrate data to a cloud storage service rather than over their primary command and control channel. Cloud storage services allow for the storage, edit, and retrieval of data from a remote cloud storage server over the Internet.
Broadcom's Symantec and Carbon Black documented a targeted espionage operation (Oct 2025–Mar 2026) against a senior executive at an unnamed global stock exchange (Broadcom/Symantec, 2026-06-03 · SecurityWeek, 2026-06-03). The actor persisted with masqueraded binaries (armsvc.exe, oneservice.exe, T1036.005) and scheduled tasks, then ran a custom Aspose-based OST stealer to incrementally exfiltrate the target's entire Outlook mailbox in small batches via the Dropbox API and OneDrive Personal (T1114.001, T1567.002), deliberately using hard-coded Microsoft IP addresses instead of hostnames to defeat DNS-based detection. Tooling also included FRPC, SharpDecryptPwd and Secretsdump (T1003.001). No attribution is offered; the assessed motive is intelligence collection. Detection concepts: scheduled-task creation by non-SYSTEM processes (EID 4698 / Sysmon 12), .ost reads by processes other than Outlook.exe (Sysmon 11), and outbound HTTPS to Dropbox API endpoints from non-browser processes.