Analysis
- max time kernel
75s - max time network
118s - platform
windows7_x64 - resource
win7-en-20210920 - submitted
23/09/2021, 10:56
General
- Target SO230921.exe
- Size 333KB
- Sample210923-m1ph4shebl
- SHA256 431d6e65f42cd1b541837d23d96a4a60e33809a0b74c5d83a82d3ecdbb3a2b78
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 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SO230921.exe"C:\Users\Admin\AppData\Local\Temp\SO230921.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\SO230921.exe"C:\Users\Admin\AppData\Local\Temp\SO230921.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/948-54-0x0000000076961000-0x0000000076963000-memory.dmp
memory/1592-56-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1592-59-0x0000000000640000-0x0000000000675000-memory.dmp
memory/1592-61-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1592-62-0x0000000004681000-0x0000000004682000-memory.dmp
memory/1592-63-0x0000000004682000-0x0000000004683000-memory.dmp
memory/1592-65-0x0000000004684000-0x0000000004685000-memory.dmp
memory/1592-64-0x0000000004683000-0x0000000004684000-memory.dmp