Analysis
- max time kernel
118s - max time network
188s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
31/12/2021, 10:24
General
- Target 3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
- Size 300.0MB
- Sample211231-mfe4yafcfj
- SHA256 3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot2049439171:AAHTF-OzMCy9i3S0b0hmaVc_mUsY0h6Ue_w/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 5 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe"C:\Users\Admin\AppData\Local\Temp\3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe"C:\Users\Admin\AppData\Local\Temp\3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1100-130-0x0000000005890000-0x0000000005D8E000-memory.dmp
memory/1100-131-0x0000000005CE0000-0x0000000005CF8000-memory.dmp
memory/1100-135-0x0000000005890000-0x0000000005D8E000-memory.dmp
memory/1100-134-0x0000000001640000-0x000000000164A000-memory.dmp
memory/1100-133-0x0000000006BA0000-0x0000000006C32000-memory.dmp
memory/1100-132-0x0000000006480000-0x00000000064E6000-memory.dmp
memory/1100-124-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1100-126-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1100-128-0x0000000005D90000-0x000000000628E000-memory.dmp
memory/1100-127-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1100-129-0x0000000005930000-0x00000000059CC000-memory.dmp
memory/2792-118-0x0000000000160000-0x000000000020A000-memory.dmp
memory/2792-119-0x0000000000160000-0x000000000020A000-memory.dmp
memory/2792-123-0x0000000004FF0000-0x0000000004FFA000-memory.dmp
memory/2792-122-0x0000000004B80000-0x0000000004B81000-memory.dmp
memory/2792-121-0x0000000004C90000-0x0000000004D22000-memory.dmp
memory/2792-120-0x00000000050F0000-0x00000000055EE000-memory.dmp