Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11-12-2024 11:59

General

  • Target

    obigfdsdf.exe

  • Size

    692KB

  • MD5

    66ff1390c2cb8e18a5ed550f8dce6a34

  • SHA1

    17f102c8ec11b0435b158ed898f9d95f2cd31638

  • SHA256

    bc4f57934371fb9a46fe4ca5166ab1a4e16d523c4a43c28e4a7eded85839166b

  • SHA512

    ae1c0e214b31d4613e74b4c59f2d670cf32a039c2eb0cf92a1c2b71a652c436c891a3abc52a1ea80ef4c7cff1cf009ccc2149cb2765ed596b48e8f84cee242fd

  • SSDEEP

    12288:a3HI6t/p4clg97O1fD19dU7V0Um5h2gc/aYFHXIR76vZ6tFJnYrCdpqIRInTzp:UHIE/uogs1zUPmfSaYF4Ri65nCdIgv

Malware Config

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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 3 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe
    "C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3044
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3032
    • C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe
      "C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"
      2⤵
        PID:2256
      • C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe
        "C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:604

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/604-11-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/604-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/604-20-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/604-15-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/604-17-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/604-8-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/604-9-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/604-7-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/604-25-0x0000000074540000-0x0000000074C2E000-memory.dmp

      Filesize

      6.9MB

    • memory/604-21-0x0000000074540000-0x0000000074C2E000-memory.dmp

      Filesize

      6.9MB

    • memory/3044-2-0x0000000074540000-0x0000000074C2E000-memory.dmp

      Filesize

      6.9MB

    • memory/3044-3-0x0000000000440000-0x0000000000452000-memory.dmp

      Filesize

      72KB

    • memory/3044-0-0x000000007454E000-0x000000007454F000-memory.dmp

      Filesize

      4KB

    • memory/3044-22-0x0000000074540000-0x0000000074C2E000-memory.dmp

      Filesize

      6.9MB

    • memory/3044-1-0x00000000009D0000-0x0000000000A82000-memory.dmp

      Filesize

      712KB

    • memory/3044-6-0x0000000005E80000-0x0000000005F0E000-memory.dmp

      Filesize

      568KB

    • memory/3044-5-0x0000000074540000-0x0000000074C2E000-memory.dmp

      Filesize

      6.9MB

    • memory/3044-4-0x000000007454E000-0x000000007454F000-memory.dmp

      Filesize

      4KB