Analysis

  • max time kernel
    145s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/12/2022, 04:29

General

  • Target
    SecuriteInfo.com.Variant.Jaik.77520.28663.5582.exe
  • Size 474KB
  • Sample221213-e4akcsde68
  • SHA256 bef09c4e715063415146af6323755bbc13c1651c3ba5ac6bcd9acd283489cd5b
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Jaik.77520.28663.5582.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Jaik.77520.28663.5582.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1444
    • C:\Users\Admin\AppData\Local\Temp\kjavliuwxz.exe
      "C:\Users\Admin\AppData\Local\Temp\kjavliuwxz.exe" C:\Users\Admin\AppData\Local\Temp\iptvmdoyo.jui
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:644
      • C:\Users\Admin\AppData\Local\Temp\kjavliuwxz.exe
        "C:\Users\Admin\AppData\Local\Temp\kjavliuwxz.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:4616

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        efpzkkyywx.ug

        • Path C:\Users\Admin\AppData\Local\Temp\efpzkkyywx.ug
        • Size 420KB
        • SHA256 1a568123d7fb15aedcc8eaf77a64beaad382f829ef16afa41db50c911bc39f1b
        • MD5 SHA1 SHA512 SSDEEP

        iptvmdoyo.jui

        • Path C:\Users\Admin\AppData\Local\Temp\iptvmdoyo.jui
        • Size 5KB
        • SHA256 22eb1ddf097f428422c1b54dc996562d4600d7edb511cd6dfd761b8d357f43c4
        • MD5 SHA1 SHA512 SSDEEP

        kjavliuwxz.exe

        • Path C:\Users\Admin\AppData\Local\Temp\kjavliuwxz.exe
        • Size 141KB
        • SHA256 b9c5179f929bbd51d78b67ef1fa08e2336c47c649f0f9ec4fd307a292d4c3391
        • MD5 SHA1 SHA512 SSDEEP

        kjavliuwxz.exe

        • Path C:\Users\Admin\AppData\Local\Temp\kjavliuwxz.exe
        • Size 141KB
        • SHA256 b9c5179f929bbd51d78b67ef1fa08e2336c47c649f0f9ec4fd307a292d4c3391
        • MD5 SHA1 SHA512 SSDEEP

        kjavliuwxz.exe

        • Path C:\Users\Admin\AppData\Local\Temp\kjavliuwxz.exe
        • Size 141KB
        • SHA256 b9c5179f929bbd51d78b67ef1fa08e2336c47c649f0f9ec4fd307a292d4c3391
        • MD5 SHA1 SHA512 SSDEEP

        memory/4616-141-0x0000000000400000-0x0000000000469000-memory.dmp

        memory/4616-142-0x0000000000400000-0x0000000000469000-memory.dmp