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Analysis

  • max time kernel
    163s
  • max time network
    167s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    12/03/2024, 06:24

General

  • Target

    2024-03-12_15ad0ab7df61372b4c48e3873441aad0_cryptolocker.exe

  • Size

    45KB

  • MD5

    15ad0ab7df61372b4c48e3873441aad0

  • SHA1

    40e4f119e0aca11d431e38c2f029352e6c79c2c3

  • SHA256

    2e69651f73d58bb27cc188fa63f521a1672c6ce81622d154af3f738f80835d3b

  • SHA512

    76e53dad9860d7cd27cfac8885432b55ac977402021f6e9b76d965c591c27fc25ba0018145999eaffbb10796865fbc09fe92faa3e598a9dd16f07692af876b57

  • SSDEEP

    768:qmOKYQDf5XdrDmjr5tOOtEvwDpjAajFEitQbDmoSQCVUBJUkQqAHBIG05W2MomF:qmbhXDmjr5MOtEvwDpj5cDtKkQZQa

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • UPX dump on OEP (original entry point) 5 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\2024-03-12_15ad0ab7df61372b4c48e3873441aad0_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-12_15ad0ab7df61372b4c48e3873441aad0_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1864
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2500

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    45KB

    MD5

    e6e713c95adffecee9dcecde3c8ec77a

    SHA1

    ac6ac5c94de1a014e9808a9803170becaa9cfebf

    SHA256

    e6a2f31dce46efb150a9ba7816d5411611326ecdfe3114adb691be39caa85883

    SHA512

    bb239e3339fdece88a95d9bd637bdb19842f003ca6737751d4cd8dee872ab6d6338c35c2643caf90dcf9218ae4b507daf2c976f158da9754ae7207575d06ae7b

  • memory/1864-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1864-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/1864-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/1864-2-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/1864-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1864-16-0x0000000002800000-0x0000000002810000-memory.dmp

    Filesize

    64KB

  • memory/2500-20-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

  • memory/2500-18-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2500-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2500-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB