Analysis
- max time kernel
140s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20220310-en - submitted
01/04/2022, 13:23
General
- Target PO08-9422.exe
- Size 464KB
- Sample220401-qmsv6agbcm
- SHA256 b416728db05b8f69c95cd82b3b5e255a3f0ab28cd5582f568d10af9b83ae4c21
Malware Config
Extracted
-
snakekeylogger
-
Protocol
smtp
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Host
kwpeng.com
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Port
587
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Username
-
Password
u3I+wf9d%*N,
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 3 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.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO08-9422.exe"C:\Users\Admin\AppData\Local\Temp\PO08-9422.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\isTngnnu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7D8.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PO08-9422.exe"{path}"2⤵
- 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
PO08-9422.exe.log
tmp7D8.tmp
memory/1136-134-0x0000000000D80000-0x0000000000DFA000-memory.dmp
memory/1136-135-0x0000000005760000-0x00000000057FC000-memory.dmp
memory/1136-136-0x0000000005DB0000-0x0000000006354000-memory.dmp
memory/1136-137-0x00000000058A0000-0x0000000005932000-memory.dmp
memory/1136-138-0x0000000005840000-0x000000000584A000-memory.dmp
memory/1136-139-0x0000000005AD0000-0x0000000005B26000-memory.dmp
memory/4284-143-0x0000000000400000-0x0000000000426000-memory.dmp
memory/4284-145-0x0000000006CF0000-0x0000000006EB2000-memory.dmp