Analysis
- max time kernel
147s - max time network
151s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
28/09/2021, 09:21
General
- Target cryyyyyy.exe
- Size 5KB
- Sample210928-lbdjwabch2
- SHA256 71502ec97fe97e6d1699f4ceed785c3b1dc7ccfefea401a55409154a4428b649
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.okurmakina.com.tr
-
Port
587
-
Username
-
Password
Oi.4793
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
mail.okurmakina.com.tr
-
Port
587
-
Username
-
Password
Oi.4793
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Downloads MZ/PE file
- 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.
- Adds Run key to start application 2 TTPs 1 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
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\cryyyyyy.exe"C:\Users\Admin\AppData\Local\Temp\cryyyyyy.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/2668-115-0x0000000000030000-0x0000000000031000-memory.dmp
memory/2668-117-0x000000001AAB0000-0x000000001AAB2000-memory.dmp
memory/2668-118-0x0000000002130000-0x0000000002141000-memory.dmp
memory/3836-119-0x0000000000400000-0x0000000000426000-memory.dmp
memory/3836-123-0x0000000005CA0000-0x0000000005CA1000-memory.dmp
memory/3836-124-0x00000000057A0000-0x00000000057A1000-memory.dmp
memory/3836-125-0x00000000057A0000-0x0000000005C9E000-memory.dmp
memory/3836-126-0x0000000006830000-0x0000000006831000-memory.dmp
memory/3836-127-0x0000000006A00000-0x0000000006A01000-memory.dmp
memory/3836-128-0x0000000006820000-0x0000000006821000-memory.dmp