Analysis

  • max time kernel
    187s
  • max time network
    197s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    15/03/2022, 19:24

General

  • Target
    JR_FHM_DAB7400006479004597_147-637593641117581330.exe
  • Size 911KB
  • Sample220315-x4ehesddfl
  • SHA256 063c4ae42d64081d50fecb5ee3d0f5ed835c8351964e32ae2bc222172d7e0b3c
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    detaymarble.com

  • Port

    587

  • Password

    1029384756Krm*

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 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies data under HKEY_USERS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JR_FHM_DAB7400006479004597_147-637593641117581330.exe
    "C:\Users\Admin\AppData\Local\Temp\JR_FHM_DAB7400006479004597_147-637593641117581330.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QrVfKYwSHjjLso.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4260
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QrVfKYwSHjjLso" /XML "C:\Users\Admin\AppData\Local\Temp\tmp256E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2280
    • C:\Users\Admin\AppData\Local\Temp\JR_FHM_DAB7400006479004597_147-637593641117581330.exe
      "C:\Users\Admin\AppData\Local\Temp\JR_FHM_DAB7400006479004597_147-637593641117581330.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1820
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
    1⤵
    • Modifies data under HKEY_USERS
    PID:2464

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1820-151-0x0000000005640000-0x0000000005BE4000-memory.dmp

        memory/1820-153-0x0000000006C00000-0x0000000006DC2000-memory.dmp

        memory/1820-148-0x0000000074EE0000-0x0000000075690000-memory.dmp

        memory/1820-147-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/2032-131-0x0000000074EE0000-0x0000000075690000-memory.dmp

        memory/2032-132-0x00000000053C0000-0x0000000005964000-memory.dmp

        memory/2032-133-0x0000000004D50000-0x0000000004DE2000-memory.dmp

        memory/2032-134-0x0000000004E20000-0x0000000004E2A000-memory.dmp

        memory/2032-130-0x00000000002D0000-0x00000000003BA000-memory.dmp

        memory/2032-138-0x0000000004CB0000-0x0000000004D42000-memory.dmp

        memory/2032-139-0x0000000008A10000-0x0000000008AAC000-memory.dmp

        memory/2464-135-0x000001FD85A90000-0x000001FD85AA0000-memory.dmp

        memory/2464-168-0x000001FD880E0000-0x000001FD880E4000-memory.dmp

        memory/2464-167-0x000001FD88340000-0x000001FD88341000-memory.dmp

        memory/2464-169-0x000001FD880D0000-0x000001FD880D1000-memory.dmp

        memory/2464-166-0x000001FD88360000-0x000001FD88364000-memory.dmp

        memory/2464-170-0x000001FD880D0000-0x000001FD880D4000-memory.dmp

        memory/2464-171-0x000001FD85DD0000-0x000001FD85DD1000-memory.dmp

        memory/2464-137-0x000001FD880B0000-0x000001FD880B4000-memory.dmp

        memory/2464-136-0x000001FD85CC0000-0x000001FD85CD0000-memory.dmp

        memory/4260-150-0x00000000056F0000-0x0000000005756000-memory.dmp

        memory/4260-152-0x0000000006690000-0x00000000066AE000-memory.dmp

        memory/4260-149-0x0000000005680000-0x00000000056E6000-memory.dmp

        memory/4260-154-0x0000000006C70000-0x0000000006CA2000-memory.dmp

        memory/4260-155-0x0000000070990000-0x00000000709DC000-memory.dmp

        memory/4260-156-0x0000000006C30000-0x0000000006C4E000-memory.dmp

        memory/4260-157-0x0000000002D10000-0x0000000002D20000-memory.dmp

        memory/4260-158-0x000000007F8F0000-0x000000007F8F1000-memory.dmp

        memory/4260-159-0x00000000080A0000-0x000000000871A000-memory.dmp

        memory/4260-160-0x0000000007A20000-0x0000000007A3A000-memory.dmp

        memory/4260-161-0x0000000007A90000-0x0000000007A9A000-memory.dmp

        memory/4260-162-0x0000000007CA0000-0x0000000007D36000-memory.dmp

        memory/4260-163-0x0000000007C50000-0x0000000007C5E000-memory.dmp

        memory/4260-164-0x0000000007D60000-0x0000000007D7A000-memory.dmp

        memory/4260-165-0x0000000007D40000-0x0000000007D48000-memory.dmp

        memory/4260-146-0x00000000055E0000-0x0000000005602000-memory.dmp

        memory/4260-144-0x00000000057A0000-0x0000000005DC8000-memory.dmp

        memory/4260-143-0x0000000002D10000-0x0000000002D20000-memory.dmp

        memory/4260-142-0x0000000002DB0000-0x0000000002DE6000-memory.dmp

        memory/4260-141-0x0000000002D10000-0x0000000002D20000-memory.dmp

        memory/4260-140-0x0000000074EE0000-0x0000000075690000-memory.dmp