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Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    08/03/2024, 01:40

General

  • Target

    2024-03-08_6b9660566936c0cf922d29d9e711371f_cryptolocker.exe

  • Size

    75KB

  • MD5

    6b9660566936c0cf922d29d9e711371f

  • SHA1

    3adfec74a7a127d30f6c87451f9e79114b6b9d41

  • SHA256

    4d053be04b012a23e2953526e6132222f6ba35b73457cc275da2c9098fcb7f41

  • SHA512

    cf6d4750080a95b9381ae0fe2e6bfcf8f6a71268ca0a56111b8a87e72e957d6cf6eb5ec9a64e20c2a1cc1da55bfc2c530896577812bbcb927bfcedfc72610e27

  • SSDEEP

    1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdJcRN:T6a+rdOOtEvwDpjNtg

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 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\2024-03-08_6b9660566936c0cf922d29d9e711371f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-08_6b9660566936c0cf922d29d9e711371f_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2320
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    75KB

    MD5

    0f11e8717eb44b169a77f5e52c260fd5

    SHA1

    6e71e85d393cb790fab9ab04b89fd554a7dc9290

    SHA256

    0f47ad0cea0d1b78bc9aea96ba085bbc5450c618ecd00a9ce364ae44f9506709

    SHA512

    af8e34e0bce13bb27d08844cae505850125ddf527196cb871e1733dad5cc9c92e52dbe8c7f9440fa078dd1d677d53685465838ce040df34228596a4d325d0cc6

  • memory/2320-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2320-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2320-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2320-3-0x0000000000310000-0x0000000000316000-memory.dmp

    Filesize

    24KB

  • memory/2320-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2480-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2480-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/2480-24-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/2480-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB