Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/08/2024, 23:48

General

  • Target

    PobierzAktualizacje.exe

  • Size

    739KB

  • MD5

    2ba8f9fe7610b96ae6b0c6cd00c15a2b

  • SHA1

    a6308eaaf8fd401d045ec844003d124f977eb138

  • SHA256

    e8b35edd4d11e79130d2c158a9ac72dcf6d10b752a421d9f880656d6d4f8a973

  • SHA512

    b7d318138e4310649fc28ffcb18788155436907caa9c0e3a0a2a6985155a731a0b853284dd2f59e60989ca316efccefc0cdfaff5175a0522f9e599963f4ae886

  • SSDEEP

    12288:9B1xvyEDTHq0FCI75bnVlP7h9VlWmQAy1LI9JM7juaHxkW0id1nE8uRJ6k:xMeK0kI75bnL1DlWmQAysOxHxkW081nk

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PobierzAktualizacje.exe
    "C:\Users\Admin\AppData\Local\Temp\PobierzAktualizacje.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5052
    • C:\Users\Admin\AppData\Local\Temp\Biuro.exe
      "C:\Users\Admin\AppData\Local\Temp\Biuro.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1604

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    20.4MB

    MD5

    7399efa7000a4e66ea8b681ee6e724a0

    SHA1

    b3e781885bfda7cdb345a023bb232254900b9b23

    SHA256

    704f5ec9abc7fe2e26910bd36673df288c45867f906f114750ceb1cb893721ea

    SHA512

    41fe59c4fe743663c04911162bdd9b21022697adf6099dd17cacfec5f81897c846f6374816eec7f324097b754f26e9f4a9fbedfa9919bb984fc58cf62efe4740

  • C:\Users\Admin\maw32.lc

    Filesize

    5KB

    MD5

    db635f6c1fba4552b845035c889fa60d

    SHA1

    6d0115aff6ea5d533d586e4182d2453523ac4109

    SHA256

    29535653d07f72ee1f3935314978db746e6503f4b681a88ef84e9f5860763b2b

    SHA512

    fd4c0cadafa72d623f442f04c6f85a52c1f55ab81b16c7c1b497fa916fdf0834502a70378521b53a649c83336989bc70d2f5ce10a78e43b1bb0957831ae0596f

  • memory/1604-28-0x0000000000400000-0x000000000187B000-memory.dmp

    Filesize

    20.5MB

  • memory/1604-29-0x0000000000400000-0x000000000187B000-memory.dmp

    Filesize

    20.5MB

  • memory/5052-0-0x00000000006A0000-0x00000000006A1000-memory.dmp

    Filesize

    4KB

  • memory/5052-4-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/5052-5-0x00000000006A0000-0x00000000006A1000-memory.dmp

    Filesize

    4KB

  • memory/5052-11-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/5052-22-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB