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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    08/06/2024, 04:48

General

  • Target

    2024-06-08_50f1607cfa5f90fe605d50fe9ffbb2b3_cryptolocker.exe

  • Size

    60KB

  • MD5

    50f1607cfa5f90fe605d50fe9ffbb2b3

  • SHA1

    dbbe62cb545d1580620bcaa187a9bac37bdaef3a

  • SHA256

    85a2e9adc4337274af4895d689666065efaa0601304c4ae7d73967ca560b52d5

  • SHA512

    bcd22cb4a2d80ed341557c8ce83eed02ceff7d272e630391093d965f48a2f3454dbb36bedbf91b2139d990fc86d39db00061453543af21cd9b68d6529e30727f

  • SSDEEP

    768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP6p7:H6QFElP6n+gou9cvMOtEvwDpjCpVXV

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\2024-06-08_50f1607cfa5f90fe605d50fe9ffbb2b3_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-08_50f1607cfa5f90fe605d50fe9ffbb2b3_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2336
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    60KB

    MD5

    5e25f34017d0aaa281755a9d293eac3c

    SHA1

    1d425eaab27931271d6a6bf37832b9e253854eba

    SHA256

    142a147b3a1a2230d13773ca0b69428f860ccacff0bb1381fe7bf41da6d12e71

    SHA512

    294edf1f8aa80b0d390154880f5ceaed2c4a62a91291156e56d38530faf6e038dd3039149f2a3265e93751a551dd60c23f377c02e28adf6582ad8873e75a60ec

  • memory/1648-18-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/1648-25-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2336-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2336-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2336-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2336-2-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB

  • memory/2336-13-0x0000000001DA0000-0x0000000001DB0000-memory.dmp

    Filesize

    64KB

  • memory/2336-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB