Analysis
- max time kernel
140s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
15/03/2023, 22:59
General
- Target final docs..exe
- Size 266KB
- Sample230315-2ydfdsfg59
- SHA256 fbdd8b241b54668968f0b858dece23e6d4667e5c0e628df2158a3b2cd50d20f1
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Executes dropped EXE 2 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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\final docs..exe"C:\Users\Admin\AppData\Local\Temp\final docs..exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\otbcma.exe"C:\Users\Admin\AppData\Local\Temp\otbcma.exe" C:\Users\Admin\AppData\Local\Temp\xkebxjge.g2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\otbcma.exe"C:\Users\Admin\AppData\Local\Temp\otbcma.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
ohmdh.t
otbcma.exe
otbcma.exe
otbcma.exe
xkebxjge.g
memory/4316-148-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4316-153-0x0000000004F10000-0x0000000004F20000-memory.dmp
memory/4316-145-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4316-147-0x00000000054D0000-0x0000000005A74000-memory.dmp
memory/4316-149-0x0000000004F20000-0x0000000004F86000-memory.dmp
memory/4316-142-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4316-150-0x0000000004F10000-0x0000000004F20000-memory.dmp
memory/4316-151-0x0000000004F10000-0x0000000004F20000-memory.dmp
memory/4316-152-0x0000000004F10000-0x0000000004F20000-memory.dmp
memory/4316-144-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4316-154-0x0000000005DA0000-0x0000000005E32000-memory.dmp
memory/4316-155-0x0000000005D90000-0x0000000005D9A000-memory.dmp
memory/4316-156-0x0000000006050000-0x00000000060A0000-memory.dmp
memory/4316-157-0x0000000006270000-0x0000000006432000-memory.dmp
memory/4316-158-0x0000000004F10000-0x0000000004F20000-memory.dmp
memory/4316-159-0x0000000004F10000-0x0000000004F20000-memory.dmp
memory/4316-160-0x0000000004F10000-0x0000000004F20000-memory.dmp
memory/4316-161-0x0000000004F10000-0x0000000004F20000-memory.dmp