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Analysis

  • max time kernel
    135s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10/06/2024, 11:49

General

  • Target

    2024-06-10_f191ad552423b6cb66793ff22dd37bef_cryptolocker.exe

  • Size

    47KB

  • MD5

    f191ad552423b6cb66793ff22dd37bef

  • SHA1

    ecf6aa74d33dc507a5d347e246268dffd11b0e6f

  • SHA256

    6bb01522743924f7b11a5592a4938945eaa3201625e1255bd6f01cefceeabc31

  • SHA512

    497b19d498706042dba396db7b0b901351a73e62fe3533ba89f235a724eee04070e69b74fb57c1311502769afd94d436800e6da574e25d2b607b55e51edcce0f

  • SSDEEP

    768:79inqyNR/QtOOtEvwDpjBKccJVODvy3SpUv:79mqyNhQMOtEvwDpjBzckqS+

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • 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\2024-06-10_f191ad552423b6cb66793ff22dd37bef_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_f191ad552423b6cb66793ff22dd37bef_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2820

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    47KB

    MD5

    02e81b68675d7b917eff805569960d31

    SHA1

    925abe87fd7546a3d28e598ce156dcd0c00922b1

    SHA256

    ce7bcc5be88aa7d535b8ed12c326e277f948d3a127caef7f306887122d76a7d4

    SHA512

    510cd9028abedf3c534fcfd119b75211cbef746cf8c11699dc81e1d2e8447b3fd1b5f3fda046361be32a41611aed65a0af1f9b9e07a94bc4f513154883d9f0d4

  • memory/1556-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/1556-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/1556-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/1556-2-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/1556-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2820-16-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2820-18-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2820-19-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB