Analysis

  • max time kernel
    94s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 02:26

General

  • Target

    2024-05-23_30ee2f276c96c14bd7d8676271fc682d_cryptolocker.exe

  • Size

    36KB

  • MD5

    30ee2f276c96c14bd7d8676271fc682d

  • SHA1

    971de9570847860ae761043e6743bfdb89f7ea63

  • SHA256

    9c6624bc16cf70c9d0da1e81bc003d85c61c4bc07f65e280076a40cb83da78b3

  • SHA512

    c7a96c742806bfadb239943bd023b51ecd7bd2873a654b8f0a229d992348fb0ffd6f8a7ad9f47d61e074fdac4d18c12561314ec8a69860d121e261e35bfeecd7

  • SSDEEP

    384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lx1hg:bA74zYcgT/Ekd0ryfjPIunqpeNswm60

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 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\2024-05-23_30ee2f276c96c14bd7d8676271fc682d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-23_30ee2f276c96c14bd7d8676271fc682d_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2944
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2764

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

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

    36KB

    MD5

    dca764b3b5e105da37604201b75cc0a1

    SHA1

    420cd494acb50c55d63a87753796313c4d24e271

    SHA256

    0c98c6a63d217a6d17374cd05e5394182131a759c5ae7ff12846f406a366c30b

    SHA512

    dd2d9277cbc6f033014d31da055cc23fccb73dd0046f943560263b792096510740876144d708c3a572395bcf554d231189c46fc036d05ab6d60002a716c4c640

  • memory/2764-15-0x00000000004C0000-0x00000000004C6000-memory.dmp
    Filesize

    24KB

  • memory/2764-22-0x0000000000350000-0x0000000000356000-memory.dmp
    Filesize

    24KB

  • memory/2944-0-0x0000000000320000-0x0000000000326000-memory.dmp
    Filesize

    24KB

  • memory/2944-8-0x0000000000320000-0x0000000000326000-memory.dmp
    Filesize

    24KB

  • memory/2944-1-0x0000000000330000-0x0000000000336000-memory.dmp
    Filesize

    24KB