Analysis
- max time kernel
112s - max time network
114s - platform
windows10_x64 - resource
win10v20210408 - submitted
24/09/2021, 08:40
General
- Target KLC45E_92421_PI.exe
- Size 467KB
- Sample210924-kk16vsgdb6
- SHA256 197db00a72bbd375a00d47de2dc33df3838dd92bc3be2506751c20c234cb00d9
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.honycuo.com
-
Port
587
-
Username
-
Password
tOinpUy*8
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
smtp.honycuo.com
-
Port
587
-
Username
-
Password
tOinpUy*8
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Loads dropped DLL 1 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.
- 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.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\KLC45E_92421_PI.exe"C:\Users\Admin\AppData\Local\Temp\KLC45E_92421_PI.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\KLC45E_92421_PI.exe"C:\Users\Admin\AppData\Local\Temp\KLC45E_92421_PI.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/4020-115-0x0000000000400000-0x000000000044A000-memory.dmp
memory/4020-117-0x0000000002300000-0x0000000002335000-memory.dmp
memory/4020-119-0x00000000049F0000-0x00000000049F1000-memory.dmp
memory/4020-121-0x00000000049E0000-0x00000000049E1000-memory.dmp
memory/4020-120-0x0000000000400000-0x000000000044A000-memory.dmp
memory/4020-122-0x00000000049E2000-0x00000000049E3000-memory.dmp
memory/4020-123-0x00000000049E3000-0x00000000049E4000-memory.dmp
memory/4020-124-0x0000000004880000-0x0000000004881000-memory.dmp
memory/4020-125-0x00000000049E4000-0x00000000049E5000-memory.dmp
memory/4020-126-0x00000000056B0000-0x00000000056B1000-memory.dmp
memory/4020-127-0x0000000005930000-0x0000000005931000-memory.dmp
memory/4020-128-0x0000000005BF0000-0x0000000005BF1000-memory.dmp