Analysis

  • max time kernel
    152s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-10-2022 01:34

General

  • Target

    bebac0ab8aeebbfc64a0c2d0644b99f1c7f720bff4219c59343f74b689ce2d55.exe

  • Size

    116KB

  • MD5

    54368c907f0cf494f91f2478490dc6e0

  • SHA1

    ca436cb2a30d3c61ed7b7653c7506dce4933b068

  • SHA256

    bebac0ab8aeebbfc64a0c2d0644b99f1c7f720bff4219c59343f74b689ce2d55

  • SHA512

    861eaa565a5dbd643640ef0f1882d44ca9aa34a32d923d62f30cfb26a6200f142d0fdda4b8ae4f573fbc7ad8a1307b1b076905313df42d9025edb581091d09f9

  • SSDEEP

    1536:qUsNo7v2V46QhdrSXt+XazoFm+D+w+j+4+1kbiMUer7n9sqAEFO7F2Mlb:Vlb

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 51 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\bebac0ab8aeebbfc64a0c2d0644b99f1c7f720bff4219c59343f74b689ce2d55.exe
    "C:\Users\Admin\AppData\Local\Temp\bebac0ab8aeebbfc64a0c2d0644b99f1c7f720bff4219c59343f74b689ce2d55.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Users\Admin\biuaxim.exe
      "C:\Users\Admin\biuaxim.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:1372

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\biuaxim.exe

    Filesize

    116KB

    MD5

    28c0ff368b3436c051b91d625a5e5727

    SHA1

    c1333c79f8a289e243973bc042df1db66a8c7a5d

    SHA256

    1287e57ff20b1a67c187bad7d8f7a37f74d3314d13f15ead555b215d66899fbf

    SHA512

    37e9b74919cd9823ebfedeea7634f7db48bfb25ba0379baae612529d6b6b6f93dbf803ca097eb4093b5ea261faac9329e05b65389cdd491b18a57270f53a899d

  • C:\Users\Admin\biuaxim.exe

    Filesize

    116KB

    MD5

    28c0ff368b3436c051b91d625a5e5727

    SHA1

    c1333c79f8a289e243973bc042df1db66a8c7a5d

    SHA256

    1287e57ff20b1a67c187bad7d8f7a37f74d3314d13f15ead555b215d66899fbf

    SHA512

    37e9b74919cd9823ebfedeea7634f7db48bfb25ba0379baae612529d6b6b6f93dbf803ca097eb4093b5ea261faac9329e05b65389cdd491b18a57270f53a899d

  • memory/1372-134-0x0000000000000000-mapping.dmp