Analysis
- max time kernel
68s - max time network
70s - platform
windows10_x64 - resource
win10v20210408 - submitted
07/07/2021, 22:15
General
- Target OZtAyZssAg2ezGX.exe
- Size 1.3MB
- Sample210707-bfkhr8tvgn
- SHA256 3c7961a3ee40fdec4c40a44d5e7b8f1324ee0a3f4c5c4b439683064b229a08e2
Malware Config
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
mail.okurmakina.com.tr
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Port
587
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Username
-
Password
Ci7412.*
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
-
C:\Users\Admin\AppData\Local\Temp\OZtAyZssAg2ezGX.exe"C:\Users\Admin\AppData\Local\Temp\OZtAyZssAg2ezGX.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\XVBkWZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3828.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\OZtAyZssAg2ezGX.exe"C:\Users\Admin\AppData\Local\Temp\OZtAyZssAg2ezGX.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/652-123-0x0000000007E30000-0x0000000007E97000-memory.dmp
memory/652-124-0x00000000081E0000-0x0000000008216000-memory.dmp
memory/652-119-0x0000000005810000-0x0000000005D0E000-memory.dmp
memory/652-120-0x00000000056E0000-0x00000000056E1000-memory.dmp
memory/652-121-0x0000000005A20000-0x0000000005A21000-memory.dmp
memory/652-122-0x0000000005210000-0x000000000521F000-memory.dmp
memory/652-114-0x0000000000D70000-0x0000000000D71000-memory.dmp
memory/652-118-0x0000000005810000-0x0000000005811000-memory.dmp
memory/652-116-0x0000000005770000-0x0000000005771000-memory.dmp
memory/652-117-0x0000000005D10000-0x0000000005D11000-memory.dmp
memory/1532-127-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1532-134-0x0000000005310000-0x000000000580E000-memory.dmp
memory/1532-135-0x00000000065A0000-0x00000000065A1000-memory.dmp