Analysis
- max time kernel
140s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
10/09/2022, 06:48
General
- Target SecuriteInfo.com.MSIL.Kryptik.EOY.tr.29539.exe
- Size 992KB
- Sample220910-hkshlsddep
- SHA256 bc7a7312a0b437df65d203117337461ac6fb0db097fe24f9e9acdb4c42480c6c
Malware Config
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
mail.rinc.in
-
Port
587
-
Username
-
Password
easter@499
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
- Disables Task Manager via registry modification
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 1 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.MSIL.Kryptik.EOY.tr.29539.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.MSIL.Kryptik.EOY.tr.29539.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TBujXknf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6448.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmp6448.tmp
memory/1744-132-0x0000000000F20000-0x000000000101E000-memory.dmp
memory/1744-133-0x0000000006040000-0x00000000065E4000-memory.dmp
memory/1744-134-0x00000000059A0000-0x0000000005A32000-memory.dmp
memory/1744-135-0x0000000005B30000-0x0000000005BCC000-memory.dmp
memory/1744-136-0x0000000005A90000-0x0000000005A9A000-memory.dmp
memory/1768-142-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1768-143-0x0000000006790000-0x0000000006952000-memory.dmp