Analysis

  • max time kernel
    172s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 13:32

General

  • Target

    9f2d996a11c560cb4a56eb6435d6539d316aa10119c60b755af8d109599d6526.exe

  • Size

    105KB

  • MD5

    c8dad4b41bc2d2f8e2fd058b38bbe090

  • SHA1

    b5d478deda21b38306c19ee4bae72a9d10fb36f0

  • SHA256

    9f2d996a11c560cb4a56eb6435d6539d316aa10119c60b755af8d109599d6526

  • SHA512

    4470d8578afe0ba50acd22b9c3394a1266b1044ab4987558aa96c427f93d84c645c29c784ef83463e6be4d25cb3758f80259f8cc37ccafb3e7fc43fb569d2f59

  • SSDEEP

    1536:HYoqYhNhO2WTHdWvI/2GVI8RgjPxJfqAxG8Q6M1q8B0vFhzeGmuvm72a:kmNQhT9WvIxIegrHxG1Jut1eGmu5

Score
8/10

Malware Config

Signatures

  • 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 behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9f2d996a11c560cb4a56eb6435d6539d316aa10119c60b755af8d109599d6526.exe
    "C:\Users\Admin\AppData\Local\Temp\9f2d996a11c560cb4a56eb6435d6539d316aa10119c60b755af8d109599d6526.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4512
    • C:\Users\Admin\AppData\Local\Temp\Chrome.exe
      "C:\Users\Admin\AppData\Local\Temp\Chrome.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4084
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Chrome.exe" "Chrome.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:4136

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Chrome.exe
    Filesize

    105KB

    MD5

    c8dad4b41bc2d2f8e2fd058b38bbe090

    SHA1

    b5d478deda21b38306c19ee4bae72a9d10fb36f0

    SHA256

    9f2d996a11c560cb4a56eb6435d6539d316aa10119c60b755af8d109599d6526

    SHA512

    4470d8578afe0ba50acd22b9c3394a1266b1044ab4987558aa96c427f93d84c645c29c784ef83463e6be4d25cb3758f80259f8cc37ccafb3e7fc43fb569d2f59

  • C:\Users\Admin\AppData\Local\Temp\Chrome.exe
    Filesize

    105KB

    MD5

    c8dad4b41bc2d2f8e2fd058b38bbe090

    SHA1

    b5d478deda21b38306c19ee4bae72a9d10fb36f0

    SHA256

    9f2d996a11c560cb4a56eb6435d6539d316aa10119c60b755af8d109599d6526

    SHA512

    4470d8578afe0ba50acd22b9c3394a1266b1044ab4987558aa96c427f93d84c645c29c784ef83463e6be4d25cb3758f80259f8cc37ccafb3e7fc43fb569d2f59

  • memory/4084-133-0x0000000000000000-mapping.dmp
  • memory/4084-138-0x0000000074B10000-0x00000000750C1000-memory.dmp
    Filesize

    5.7MB

  • memory/4084-139-0x0000000074B10000-0x00000000750C1000-memory.dmp
    Filesize

    5.7MB

  • memory/4136-137-0x0000000000000000-mapping.dmp
  • memory/4512-132-0x0000000074B10000-0x00000000750C1000-memory.dmp
    Filesize

    5.7MB

  • memory/4512-136-0x0000000074B10000-0x00000000750C1000-memory.dmp
    Filesize

    5.7MB