Analysis
- max time kernel
162s - max time network
165s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
08/02/2023, 18:29
General
- Target SD987654567898765678Y.exe
- Size 294KB
- Sample230208-w4ww2aeb94
- SHA256 c591ec47c2b8daa5036cb079a83f61d1e02bb9bb340723d3e6b9290f80e5f64f
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
- 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 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 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\SD987654567898765678Y.exe"C:\Users\Admin\AppData\Local\Temp\SD987654567898765678Y.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\sxyqrhii.exe"C:\Users\Admin\AppData\Local\Temp\sxyqrhii.exe" C:\Users\Admin\AppData\Local\Temp\wkergkv.pto2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\sxyqrhii.exe"C:\Users\Admin\AppData\Local\Temp\sxyqrhii.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
sfhbjg.tj
sxyqrhii.exe
sxyqrhii.exe
sxyqrhii.exe
wkergkv.pto
memory/4568-139-0x0000000000400000-0x0000000000437000-memory.dmp
memory/4568-140-0x0000000004930000-0x0000000004ED4000-memory.dmp
memory/4568-141-0x0000000004840000-0x00000000048DC000-memory.dmp
memory/4568-142-0x0000000005A20000-0x0000000005BE2000-memory.dmp
memory/4568-143-0x0000000005BF0000-0x0000000005C82000-memory.dmp
memory/4568-144-0x0000000005CD0000-0x0000000005CDA000-memory.dmp