Analysis
- max time kernel
81s - max time network
109s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
02/03/2023, 11:30
General
- Target shipment documents.exe
- Size 272KB
- Sample230302-nl6phscc8x
- SHA256 bed5f00ba7f0aec0391ad13dfd0bf4b0f8eedbe17aaae07afb22347aecb8435c
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 4 IoCs
- Executes dropped EXE 3 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 1 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: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\shipment documents.exe"C:\Users\Admin\AppData\Local\Temp\shipment documents.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\jutzz.exe"C:\Users\Admin\AppData\Local\Temp\jutzz.exe" C:\Users\Admin\AppData\Local\Temp\gncwxmzzshm.io2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\jutzz.exe"C:\Users\Admin\AppData\Local\Temp\jutzz.exe"3⤵
- Executes dropped EXE
-
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C:\Users\Admin\AppData\Local\Temp\jutzz.exe"C:\Users\Admin\AppData\Local\Temp\jutzz.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- 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
bpweim.abh
gncwxmzzshm.io
jutzz.exe
jutzz.exe
jutzz.exe
jutzz.exe
memory/1996-149-0x0000000005A70000-0x0000000006014000-memory.dmp
memory/1996-151-0x00000000054B0000-0x00000000054C0000-memory.dmp
memory/1996-146-0x0000000000400000-0x0000000000437000-memory.dmp
memory/1996-148-0x0000000000400000-0x0000000000437000-memory.dmp
memory/1996-143-0x0000000000400000-0x0000000000437000-memory.dmp
memory/1996-150-0x0000000005560000-0x00000000055FC000-memory.dmp
memory/1996-152-0x00000000054B0000-0x00000000054C0000-memory.dmp
memory/1996-145-0x0000000000400000-0x0000000000437000-memory.dmp
memory/1996-153-0x00000000054B0000-0x00000000054C0000-memory.dmp
memory/1996-154-0x00000000067F0000-0x00000000069B2000-memory.dmp
memory/1996-155-0x00000000066C0000-0x0000000006752000-memory.dmp
memory/1996-156-0x0000000006670000-0x000000000667A000-memory.dmp
memory/1996-157-0x00000000054B0000-0x00000000054C0000-memory.dmp
memory/1996-158-0x00000000054B0000-0x00000000054C0000-memory.dmp
memory/1996-159-0x00000000054B0000-0x00000000054C0000-memory.dmp
memory/1996-160-0x00000000054B0000-0x00000000054C0000-memory.dmp