Analysis
- max time kernel
140s - max time network
141s - platform
windows10_x64 - resource
win10-en - submitted
17/09/2021, 14:08
General
- Target bluezx.exe
- Size 433KB
- Sample210917-rfkrmsafej
- SHA256 dc7749ab9753ec5962ae6b0b4f1ec32c7b2bb7da1b75510a1cccc440994e6deb
Malware Config
Extracted
-
snakekeylogger
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Protocol
smtp
-
Host
mail.alikhalafforklifts.com
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Port
587
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Username
-
Password
Khalaf#098
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- 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.
- 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
Processes
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C:\Users\Admin\AppData\Local\Temp\bluezx.exe"C:\Users\Admin\AppData\Local\Temp\bluezx.exe"1⤵
- 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\VKjaUr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5261.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\bluezx.exe"C:\Users\Admin\AppData\Local\Temp\bluezx.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/4720-122-0x0000000009890000-0x0000000009891000-memory.dmp
memory/4720-124-0x000000000C5A0000-0x000000000C6A3000-memory.dmp
memory/4720-119-0x0000000005010000-0x0000000005011000-memory.dmp
memory/4720-120-0x00000000051C0000-0x00000000056BE000-memory.dmp
memory/4720-121-0x00000000051F0000-0x00000000051F7000-memory.dmp
memory/4720-115-0x0000000000760000-0x0000000000761000-memory.dmp
memory/4720-123-0x0000000009D10000-0x0000000009D64000-memory.dmp
memory/4720-118-0x0000000005060000-0x0000000005061000-memory.dmp
memory/4720-117-0x00000000056C0000-0x00000000056C1000-memory.dmp
memory/4868-126-0x0000000000400000-0x0000000000426000-memory.dmp
memory/4868-133-0x0000000001520000-0x0000000001521000-memory.dmp
memory/4868-134-0x0000000006690000-0x0000000006691000-memory.dmp