Analysis

  • max time kernel
    74s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/07/2022, 16:07

General

  • Target
    f18592fd1912ac0404565944991e77a1.exe
  • Size 885KB
  • Sample220726-tkmsxabdcl
  • SHA256 806bfede204f2390d3e142735dfb3ee25d440eef2ef1966ee1caca991ca5a60a
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f18592fd1912ac0404565944991e77a1.exe
    "C:\Users\Admin\AppData\Local\Temp\f18592fd1912ac0404565944991e77a1.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4996
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jAlJQbFTKpZvn.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:208
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jAlJQbFTKpZvn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4FC6.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2288
    • C:\Users\Admin\AppData\Local\Temp\f18592fd1912ac0404565944991e77a1.exe
      "C:\Users\Admin\AppData\Local\Temp\f18592fd1912ac0404565944991e77a1.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1356

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        f18592fd1912ac0404565944991e77a1.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f18592fd1912ac0404565944991e77a1.exe.log
        • Size 1KB
        • SHA256 bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7
        • MD5 SHA1 SHA512

        tmp4FC6.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp4FC6.tmp
        • Size 1KB
        • SHA256 8d6110bedb6fa70737db5210212d9540f73bd77530d3bca2ad66bb96670b1f0e
        • MD5 SHA1 SHA512

        memory/208-151-0x0000000007D10000-0x000000000838A000-memory.dmp

        memory/208-154-0x0000000007950000-0x00000000079E6000-memory.dmp

        memory/208-157-0x00000000079F0000-0x00000000079F8000-memory.dmp

        memory/208-156-0x0000000007A10000-0x0000000007A2A000-memory.dmp

        memory/208-153-0x0000000007740000-0x000000000774A000-memory.dmp

        memory/208-138-0x0000000004E10000-0x0000000004E46000-memory.dmp

        memory/208-144-0x0000000005C20000-0x0000000005C42000-memory.dmp

        memory/208-146-0x00000000063C0000-0x00000000063DE000-memory.dmp

        memory/208-142-0x0000000005570000-0x0000000005B98000-memory.dmp

        memory/208-149-0x0000000070D00000-0x0000000070D4C000-memory.dmp

        memory/208-155-0x0000000007900000-0x000000000790E000-memory.dmp

        memory/208-145-0x0000000005CC0000-0x0000000005D26000-memory.dmp

        memory/208-152-0x00000000076D0000-0x00000000076EA000-memory.dmp

        memory/208-150-0x0000000006960000-0x000000000697E000-memory.dmp

        memory/208-148-0x0000000006990000-0x00000000069C2000-memory.dmp

        memory/1356-147-0x0000000006990000-0x0000000006B52000-memory.dmp

        memory/1356-141-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/4996-132-0x0000000004FF0000-0x0000000005082000-memory.dmp

        memory/4996-130-0x0000000000580000-0x0000000000662000-memory.dmp

        memory/4996-133-0x00000000051B0000-0x00000000051BA000-memory.dmp

        memory/4996-131-0x0000000005660000-0x0000000005C04000-memory.dmp

        memory/4996-135-0x000000000B3A0000-0x000000000B406000-memory.dmp

        memory/4996-134-0x00000000087E0000-0x000000000887C000-memory.dmp