Analysis

  • max time kernel
    24s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    05-02-2023 10:50

General

  • Target

    nimrod3k_beta.exe

  • Size

    113.7MB

  • MD5

    3ad89fefa1ad157633127240c3391ea0

  • SHA1

    a782cd2f64d83a427a1f3518ccf0ecb318dc1494

  • SHA256

    e3b0ab45f40a99bcfec631868debf25f8736fe7409579fc53ecad859571ac721

  • SHA512

    1daacfcfc7d93d7fc9c730abc7bd6220f3585502af74add7f32713bda4f199666f2705ead4efb63b686cbce5ed5b65223b013c26930c678b5c128756b1842f52

  • SSDEEP

    3145728:/F7V7SC++pLwANp7y4NT/LjBCVpOmo8sLOEc+:pVWCXPjrBc0mMOE

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\nimrod3k_beta.exe
    "C:\Users\Admin\AppData\Local\Temp\nimrod3k_beta.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1244
    • C:\Users\Admin\AppData\Local\Temp\nimrod3k_beta.exe
      "C:\Users\Admin\AppData\Local\Temp\nimrod3k_beta.exe"
      2⤵
      • Loads dropped DLL
      PID:2036

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\_MEI12442\python311.dll
    Filesize

    5.5MB

    MD5

    9a24c8c35e4ac4b1597124c1dcbebe0f

    SHA1

    f59782a4923a30118b97e01a7f8db69b92d8382a

    SHA256

    a0cf640e756875c25c12b4a38ba5f2772e8e512036e2ac59eb8567bf05ffbfb7

    SHA512

    9d9336bf1f0d3bc9ce4a636a5f4e52c5f9487f51f00614fc4a34854a315ce7ea8be328153812dbd67c45c75001818fa63317eba15a6c9a024fa9f2cab163165b

  • \Users\Admin\AppData\Local\Temp\_MEI12442\python311.dll
    Filesize

    5.5MB

    MD5

    9a24c8c35e4ac4b1597124c1dcbebe0f

    SHA1

    f59782a4923a30118b97e01a7f8db69b92d8382a

    SHA256

    a0cf640e756875c25c12b4a38ba5f2772e8e512036e2ac59eb8567bf05ffbfb7

    SHA512

    9d9336bf1f0d3bc9ce4a636a5f4e52c5f9487f51f00614fc4a34854a315ce7ea8be328153812dbd67c45c75001818fa63317eba15a6c9a024fa9f2cab163165b

  • memory/2036-54-0x0000000000000000-mapping.dmp