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Analysis

  • max time kernel
    204s
  • max time network
    209s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/11/2022, 17:03

General

  • Target

    5c1fde5711e603055eda9c5c45df3699a770bffc5498331db5f51963cedd0c5c.exe

  • Size

    585KB

  • MD5

    593c49bcff04c91af78483c1d8d87cbd

  • SHA1

    15499641c22650e742a2497b81de0fec8a6a5f84

  • SHA256

    5c1fde5711e603055eda9c5c45df3699a770bffc5498331db5f51963cedd0c5c

  • SHA512

    9523027b47ee703211fb69858fa9213087c01186586a94d10f678ef35929fc211eea1be8e0acd285e44d9c96b1ee950ea280ee1fc547a1c861ae32c5923fbdaf

  • SSDEEP

    12288:YsTrR2sP7XY655ig1Gi9iDen9Fsl7ut0ZOwRdu+qMd0QZh9u:YsTrR5P7XY655ig1Gi9iDen9s7utuvvu

Malware Config

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5c1fde5711e603055eda9c5c45df3699a770bffc5498331db5f51963cedd0c5c.exe
    "C:\Users\Admin\AppData\Local\Temp\5c1fde5711e603055eda9c5c45df3699a770bffc5498331db5f51963cedd0c5c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4000
    • C:\Users\Admin\AppData\Local\Temp\image.exe
      "C:\Users\Admin\AppData\Local\Temp\image.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2664
      • C:\Windows\SYSTEM32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\image.exe" "image.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:3444

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\image.exe

    Filesize

    585KB

    MD5

    593c49bcff04c91af78483c1d8d87cbd

    SHA1

    15499641c22650e742a2497b81de0fec8a6a5f84

    SHA256

    5c1fde5711e603055eda9c5c45df3699a770bffc5498331db5f51963cedd0c5c

    SHA512

    9523027b47ee703211fb69858fa9213087c01186586a94d10f678ef35929fc211eea1be8e0acd285e44d9c96b1ee950ea280ee1fc547a1c861ae32c5923fbdaf

  • C:\Users\Admin\AppData\Local\Temp\image.exe

    Filesize

    585KB

    MD5

    593c49bcff04c91af78483c1d8d87cbd

    SHA1

    15499641c22650e742a2497b81de0fec8a6a5f84

    SHA256

    5c1fde5711e603055eda9c5c45df3699a770bffc5498331db5f51963cedd0c5c

    SHA512

    9523027b47ee703211fb69858fa9213087c01186586a94d10f678ef35929fc211eea1be8e0acd285e44d9c96b1ee950ea280ee1fc547a1c861ae32c5923fbdaf

  • memory/2664-136-0x00007FFC98340000-0x00007FFC98D76000-memory.dmp

    Filesize

    10.2MB

  • memory/4000-132-0x00007FFC98340000-0x00007FFC98D76000-memory.dmp

    Filesize

    10.2MB