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Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    30/05/2024, 06:52

General

  • Target

    2024-05-30_98a3f4b1289b3924eaceabdf82a5f5a1_cryptolocker.exe

  • Size

    24KB

  • MD5

    98a3f4b1289b3924eaceabdf82a5f5a1

  • SHA1

    82925b3518b637f6f89903407e008dc70f8574c4

  • SHA256

    f90df14e16fefa05afb489ce586e8b4c6ce196a0a594032a82748d4b304ccf91

  • SHA512

    ce9f61ca8bb2d95a2dfa89b901c01518ac26f615d3f71e12a9ff4c75242fc8646bc9b75c2ccfac04da08f5f17bfcdcd3bbc6a0aede3f2f4920da0abc2f07c1b2

  • SSDEEP

    384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDp6HMJ2Aw:bVCPwFRo6CpwXFXSqQXfjAsJ0

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-30_98a3f4b1289b3924eaceabdf82a5f5a1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-30_98a3f4b1289b3924eaceabdf82a5f5a1_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1340
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2572

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\hasfj.exe

    Filesize

    24KB

    MD5

    5dbc9e4c6386d08428b32ef2536596ff

    SHA1

    a54345c4c8a426f4a5523b7dd58ec99efd5e9753

    SHA256

    17102125e040d4dd3ff7222665dfb9bc44a2929d2727c2a69a01d38a6b8a4517

    SHA512

    0745e24b2827f1fdfef2021439078e0896935ec3f49041ba4533d5f124b9b54b9f16490f1353f8b7f1428b653745bdb44a30056e02520de25d1570460a8574d2

  • memory/1340-0-0x0000000008000000-0x000000000800E000-memory.dmp

    Filesize

    56KB

  • memory/1340-1-0x0000000000570000-0x0000000000576000-memory.dmp

    Filesize

    24KB

  • memory/1340-3-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

    Filesize

    24KB

  • memory/1340-2-0x0000000000570000-0x0000000000576000-memory.dmp

    Filesize

    24KB

  • memory/1340-15-0x0000000008000000-0x000000000800E000-memory.dmp

    Filesize

    56KB

  • memory/2572-17-0x0000000008000000-0x000000000800E000-memory.dmp

    Filesize

    56KB

  • memory/2572-19-0x00000000002E0000-0x00000000002E6000-memory.dmp

    Filesize

    24KB

  • memory/2572-20-0x00000000003C0000-0x00000000003C6000-memory.dmp

    Filesize

    24KB

  • memory/2572-27-0x0000000008000000-0x000000000800E000-memory.dmp

    Filesize

    56KB