Analysis

  • max time kernel
    91s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25/06/2022, 06:24

General

  • Target
    98885a49acb18833bf0a73ce8693a0e3.exe
  • Size 819KB
  • Sample220625-g52fkshcdl
  • SHA256 f77b7a53564f8553d56104dc2ef6e13a18aceeee08365418c2181cfc765279b8
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.bhungar.com

  • Port

    587

  • Password

    i3cepm2X&{=1

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 6 IoCs
  • Suspicious behavior: RenamesItself 1 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\98885a49acb18833bf0a73ce8693a0e3.exe
    "C:\Users\Admin\AppData\Local\Temp\98885a49acb18833bf0a73ce8693a0e3.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2576
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mKbnJx.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2276
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mKbnJx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9CAD.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3920
    • C:\Users\Admin\AppData\Local\Temp\98885a49acb18833bf0a73ce8693a0e3.exe
      "C:\Users\Admin\AppData\Local\Temp\98885a49acb18833bf0a73ce8693a0e3.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4564

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        tmp9CAD.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp9CAD.tmp
        • Size 1KB
        • SHA256 7b757985195a4aec42f9ba112f6b1d3f54d0a04ff28fddfc20d0164b5e3b5470
        • MD5 SHA1 SHA512

        memory/2276-148-0x0000000006920000-0x000000000693E000-memory.dmp

        memory/2276-150-0x0000000007670000-0x000000000768A000-memory.dmp

        memory/2276-155-0x00000000079A0000-0x00000000079A8000-memory.dmp

        memory/2276-154-0x00000000079B0000-0x00000000079CA000-memory.dmp

        memory/2276-153-0x0000000005120000-0x000000000512E000-memory.dmp

        memory/2276-137-0x0000000002A80000-0x0000000002AB6000-memory.dmp

        memory/2276-144-0x0000000005520000-0x0000000005586000-memory.dmp

        memory/2276-151-0x00000000076E0000-0x00000000076EA000-memory.dmp

        memory/2276-145-0x0000000006370000-0x000000000638E000-memory.dmp

        memory/2276-141-0x0000000005590000-0x0000000005BB8000-memory.dmp

        memory/2276-142-0x00000000052A0000-0x00000000052C2000-memory.dmp

        memory/2276-149-0x0000000007CC0000-0x000000000833A000-memory.dmp

        memory/2276-152-0x00000000078F0000-0x0000000007986000-memory.dmp

        memory/2276-143-0x0000000005440000-0x00000000054A6000-memory.dmp

        memory/2276-146-0x0000000007350000-0x0000000007382000-memory.dmp

        memory/2276-147-0x000000006FF30000-0x000000006FF7C000-memory.dmp

        memory/2576-130-0x00000000006B0000-0x0000000000784000-memory.dmp

        memory/2576-132-0x0000000005210000-0x00000000052A2000-memory.dmp

        memory/2576-131-0x0000000005720000-0x0000000005CC4000-memory.dmp

        memory/2576-134-0x00000000078D0000-0x000000000796C000-memory.dmp

        memory/2576-133-0x0000000005130000-0x000000000513A000-memory.dmp

        memory/4564-140-0x0000000000400000-0x000000000047C000-memory.dmp