Analysis
- max time kernel
91s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
17/01/2023, 13:49
General
- Target SD87654567800097654323456780.exe
- Size 342KB
- Sample230117-q4nyjach8v
- SHA256 c8317eada3d729d3b0a2b4afff1526b1f3ce48325976c25cfb54a78919b8a019
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
- Executes dropped EXE 2 IoCs
- UPX packed file 1 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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\SD87654567800097654323456780.exe"C:\Users\Admin\AppData\Local\Temp\SD87654567800097654323456780.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\mxsdsghzar.exe"C:\Users\Admin\AppData\Local\Temp\mxsdsghzar.exe" C:\Users\Admin\AppData\Local\Temp\msmxvqmalvs.ka2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\mxsdsghzar.exe"C:\Users\Admin\AppData\Local\Temp\mxsdsghzar.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
msmxvqmalvs.ka
mxsdsghzar.exe
mxsdsghzar.exe
mxsdsghzar.exe
tlbsummglgu.e
memory/5012-140-0x0000000004AB0000-0x0000000005054000-memory.dmp
memory/5012-139-0x0000000000400000-0x000000000043A000-memory.dmp
memory/5012-141-0x0000000004980000-0x0000000004A1C000-memory.dmp
memory/5012-142-0x0000000005B60000-0x0000000005D22000-memory.dmp
memory/5012-143-0x0000000005D30000-0x0000000005DC2000-memory.dmp
memory/5012-144-0x0000000005E20000-0x0000000005E2A000-memory.dmp