Analysis

  • max time kernel
    151s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 15:55

General

  • Target

    1a4824073157c3858bca278babe527b4dc86f9a86133e42e6a7fb75a7a9b21b6.exe

  • Size

    601KB

  • MD5

    8b73d17b334ba0006f8ea5665c6f64de

  • SHA1

    8b98686fb95156614ae674c6b3f28c8b755d18bd

  • SHA256

    1a4824073157c3858bca278babe527b4dc86f9a86133e42e6a7fb75a7a9b21b6

  • SHA512

    cbad5bb39f22c21ca99ea4b1074f89631c1b29b5d5c82830af4cbfbcd37492df4b3a1910728d1c68f857a1a50fabb12ac11ad5feadc32c169eebad2fc99bfeeb

  • SSDEEP

    12288:xORNsuj7LM2e2Bl4St2AxKeAN+GKnvLof/9WraN0bfs3kZwD+ZAd2:xsNsmM2lBmSt2A+yTof/YrdfqkZwD4Ao

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1a4824073157c3858bca278babe527b4dc86f9a86133e42e6a7fb75a7a9b21b6.exe
    "C:\Users\Admin\AppData\Local\Temp\1a4824073157c3858bca278babe527b4dc86f9a86133e42e6a7fb75a7a9b21b6.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4732
    • C:\Users\Admin\AppData\Local\Temp\n3069\s3072.exe
      "C:\Users\Admin\AppData\Local\Temp\n3069\s3072.exe" 979ee2b71a9c15339f37a895/bOPzTvqLUJWG+eeyMfbr79HwcRwPtfIr7a49B5sFpVbBj8+6itVze/3WqjMy7FGEj5o3LDJyPvm4JhEN+G1ayh/ftOKQ1Yh0m5KvV2gSa/1WXz+Me9aknp85aHvR6EPpAjdxoBha0falQy8kJY2ycdcW9jeuSFFauth2gk= /v "C:\Users\Admin\AppData\Local\Temp\1a4824073157c3858bca278babe527b4dc86f9a86133e42e6a7fb75a7a9b21b6.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4764

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n3069\s3072.exe

          Filesize

          349KB

          MD5

          f42490846128abad3a6504a02c9ef12c

          SHA1

          017da52f785d1385ee7fd9a5bcb2550096166385

          SHA256

          19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

          SHA512

          983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

        • C:\Users\Admin\AppData\Local\Temp\n3069\s3072.exe

          Filesize

          349KB

          MD5

          f42490846128abad3a6504a02c9ef12c

          SHA1

          017da52f785d1385ee7fd9a5bcb2550096166385

          SHA256

          19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

          SHA512

          983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

        • memory/4764-135-0x00007FFC98FF0000-0x00007FFC99A26000-memory.dmp

          Filesize

          10.2MB

        • memory/4764-136-0x000000000162A000-0x000000000162F000-memory.dmp

          Filesize

          20KB

        • memory/4764-137-0x000000000162A000-0x000000000162F000-memory.dmp

          Filesize

          20KB

        • memory/4764-138-0x000000000162A000-0x000000000162F000-memory.dmp

          Filesize

          20KB