Analysis

  • max time kernel
    118s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28/05/2024, 17:57

General

  • Target

    Skuller.exe

  • Size

    23.0MB

  • MD5

    ef37216c7eba4c507cb74ceff22c460e

  • SHA1

    86a6f0245fc3db061c1b1e28e67c211c94590a47

  • SHA256

    ffebcd96d662439491f157860b8e0123b4577b8713cc3ff1f118e500215d3f06

  • SHA512

    a984f81aa33c54f7d8386fba90c1bedee59e272096555263a2aa0f6a74c74b7422b87111caaebd305d3c02e95f1a5b67b0eb0beffd7c1ff5db82e17b247c4314

  • SSDEEP

    393216:JHhhmKIEge9DytYtaUI7GSLThU7cZIncfGCsGZRCWoyOecw8XxQmIU:pynEgMetYm7/LTewZIcunGZdrOecthI

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Skuller.exe
    "C:\Users\Admin\AppData\Local\Temp\Skuller.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2696
    • C:\Users\Admin\AppData\Local\Temp\onefile_2696_133613926371154000\main.exe
      "C:\Users\Admin\AppData\Local\Temp\Skuller.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2912

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\onefile_2696_133613926371154000\python311.dll

    Filesize

    5.5MB

    MD5

    9a24c8c35e4ac4b1597124c1dcbebe0f

    SHA1

    f59782a4923a30118b97e01a7f8db69b92d8382a

    SHA256

    a0cf640e756875c25c12b4a38ba5f2772e8e512036e2ac59eb8567bf05ffbfb7

    SHA512

    9d9336bf1f0d3bc9ce4a636a5f4e52c5f9487f51f00614fc4a34854a315ce7ea8be328153812dbd67c45c75001818fa63317eba15a6c9a024fa9f2cab163165b

  • \Users\Admin\AppData\Local\Temp\onefile_2696_133613926371154000\main.exe

    Filesize

    45.1MB

    MD5

    61bf828ec19c946a1f3dcd69e32fd9cc

    SHA1

    3b79e3729535f011d1a2c195430930798623acfb

    SHA256

    447886f321aa23a433a73546e63d10b195f8a2f88cb9ffb0c5a00c8851a23310

    SHA512

    c549561dfce8e2fa0c21bce9e2696c340350558db09f1e5c77b52462040f82f93f67d1d78cbda8758bac6560da5858e5d855f445eebf9a159c2fe29d1ca01877

  • memory/2696-61-0x000000013F970000-0x0000000141085000-memory.dmp

    Filesize

    23.1MB

  • memory/2696-110-0x000000013F970000-0x0000000141085000-memory.dmp

    Filesize

    23.1MB

  • memory/2912-57-0x000000013F350000-0x000000014212B000-memory.dmp

    Filesize

    45.9MB