Analysis
- max time kernel
90s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
16/02/2023, 10:34
General
- Target 0876545678087SSD.exe
- Size 283KB
- Sample230216-ml4pgsgg7x
- SHA256 4a15cf8a8aa91e9476b77dc6a43d2c4e77b054e832c34d9caffca441e32bb0db
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\0876545678087SSD.exe"C:\Users\Admin\AppData\Local\Temp\0876545678087SSD.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\eyusyq.exe"C:\Users\Admin\AppData\Local\Temp\eyusyq.exe" C:\Users\Admin\AppData\Local\Temp\ousnuyx.rle2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\eyusyq.exe"C:\Users\Admin\AppData\Local\Temp\eyusyq.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
eyusyq.exe
eyusyq.exe
eyusyq.exe
ousnuyx.rle
uoytsxxxg.w
memory/4844-139-0x00000000057E0000-0x0000000005D84000-memory.dmp
memory/4844-140-0x00000000052D0000-0x000000000536C000-memory.dmp
memory/4844-141-0x0000000000400000-0x0000000000437000-memory.dmp
memory/4844-142-0x0000000006560000-0x0000000006722000-memory.dmp
memory/4844-143-0x0000000006430000-0x00000000064C2000-memory.dmp
memory/4844-144-0x00000000063E0000-0x00000000063EA000-memory.dmp