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Analysis

  • max time kernel
    151s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/10/2022, 01:58

General

  • Target

    462377cd5fd9e3e923442d02448b38cd7aaa20cf6c182bd5fad07b9c6ed343bc.exe

  • Size

    260KB

  • MD5

    41f4cef0874e084b4f85c42ebc549910

  • SHA1

    cb7e3b5bfe3455d3bf6add5d0dee4a092b0c3b4b

  • SHA256

    462377cd5fd9e3e923442d02448b38cd7aaa20cf6c182bd5fad07b9c6ed343bc

  • SHA512

    6a731f3435569d366e2dedf6be2d73e3166861e692cc850ec74ab78aa6e04c95510cde82a4cd65e6bb8805e716190c9418fe2e3ea488a25a646c6e0ad96ebcb4

  • SSDEEP

    3072:lgZcPIDHQXftsa01SOq1RY4uJr/I5fEKcpGJsXS9Y:CcPIDd+JleGJ99

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 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.

  • Adds Run key to start application 2 TTPs 52 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\462377cd5fd9e3e923442d02448b38cd7aaa20cf6c182bd5fad07b9c6ed343bc.exe
    "C:\Users\Admin\AppData\Local\Temp\462377cd5fd9e3e923442d02448b38cd7aaa20cf6c182bd5fad07b9c6ed343bc.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2448
    • C:\Users\Admin\zaoaf.exe
      "C:\Users\Admin\zaoaf.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1056

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\zaoaf.exe

    Filesize

    260KB

    MD5

    d9da01c76cb3cf30f47bd0f2853d14e6

    SHA1

    497748ceef2c72e59f6c44c9c494b7871ec3a6e1

    SHA256

    20ee04ded770452122c052254ad2e6f03b33a5f506d6434f16054814b0fb7a32

    SHA512

    9d3d5bfc7c89c47535f60fea86b2627296a4211b35c2ee2f4d9efaa9dd71effbf6520d7abab42659821d73b0dd5e682df8b271af79f6222b22a090a8d064baf4

  • C:\Users\Admin\zaoaf.exe

    Filesize

    260KB

    MD5

    d9da01c76cb3cf30f47bd0f2853d14e6

    SHA1

    497748ceef2c72e59f6c44c9c494b7871ec3a6e1

    SHA256

    20ee04ded770452122c052254ad2e6f03b33a5f506d6434f16054814b0fb7a32

    SHA512

    9d3d5bfc7c89c47535f60fea86b2627296a4211b35c2ee2f4d9efaa9dd71effbf6520d7abab42659821d73b0dd5e682df8b271af79f6222b22a090a8d064baf4