Analysis
- max time kernel
108s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
03/04/2023, 05:56
General
- Target PO 0051-23.exe
- Size 318KB
- Sample230403-gm2nmaee4t
- SHA256 0e4ea6322dba2d469a0e405188c76f6cd9332e193071048192621abf85bf7cdc
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
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- 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 SetWindowsHookEx 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\PO 0051-23.exe"C:\Users\Admin\AppData\Local\Temp\PO 0051-23.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\omhrw.exe"C:\Users\Admin\AppData\Local\Temp\omhrw.exe" C:\Users\Admin\AppData\Local\Temp\uceqap.bxh2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\omhrw.exe"C:\Users\Admin\AppData\Local\Temp\omhrw.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
omhrw.exe
omhrw.exe
omhrw.exe
rqmpn.vew
uceqap.bxh
memory/1644-150-0x00000000027C0000-0x00000000027D0000-memory.dmp
memory/1644-152-0x0000000004F00000-0x0000000004F66000-memory.dmp
memory/1644-145-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1644-142-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1644-147-0x0000000005400000-0x00000000059A4000-memory.dmp
memory/1644-148-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1644-149-0x00000000027C0000-0x00000000027D0000-memory.dmp
memory/1644-161-0x00000000027C0000-0x00000000027D0000-memory.dmp
memory/1644-151-0x00000000027C0000-0x00000000027D0000-memory.dmp
memory/1644-144-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1644-153-0x00000000027C0000-0x00000000027D0000-memory.dmp
memory/1644-154-0x00000000066B0000-0x0000000006742000-memory.dmp
memory/1644-155-0x00000000067B0000-0x00000000067BA000-memory.dmp
memory/1644-156-0x0000000006930000-0x0000000006980000-memory.dmp
memory/1644-157-0x0000000006C40000-0x0000000006E02000-memory.dmp
memory/1644-158-0x00000000027C0000-0x00000000027D0000-memory.dmp
memory/1644-159-0x00000000027C0000-0x00000000027D0000-memory.dmp
memory/1644-160-0x00000000027C0000-0x00000000027D0000-memory.dmp
memory/3520-140-0x00000000014F0000-0x00000000014F2000-memory.dmp