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Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    04/02/2024, 00:27

General

  • Target

    2024-02-04_445ae8b214357bdd9ae7099223a9897d_cryptolocker.exe

  • Size

    56KB

  • MD5

    445ae8b214357bdd9ae7099223a9897d

  • SHA1

    1fd5c831781576e7eceac417586e2f811c2f85ec

  • SHA256

    b8b780a1134448aca6ef4b1183ed53a8a0b624814d401b3f92b4a29116ee46fd

  • SHA512

    98b599324905d101c848a5b064c36d73431a59aefcca74446a969b8fd91f5e9d5af6762c64a608036b6a0808edca869502db2c3c6eead79305e5dbc4accb732e

  • SSDEEP

    1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61W:BbdDmjr+OtEvwDpjMs

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • UPX dump on OEP (original entry point) 6 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\2024-02-04_445ae8b214357bdd9ae7099223a9897d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-04_445ae8b214357bdd9ae7099223a9897d_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2188
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1528

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    56KB

    MD5

    cb828365ca68607f8c65f83d4c577ede

    SHA1

    b576d7a24237abdfabbcdb6cde85360ed58c6d31

    SHA256

    4015ef9b84002e7aff9894d6f32b1afd9de2754a4ad11e60900f6caf9e2d126f

    SHA512

    c924fe6ab32e74494c3e30b251fdcab3086fda970960e882af1d34c535f7296cc1a79877a761e984ea60f928d3de0cd809d3d2e03841de0b564f76f13968a038

  • memory/1528-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1528-19-0x00000000004A0000-0x00000000004A6000-memory.dmp

    Filesize

    24KB

  • memory/1528-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2188-0-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2188-1-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2188-2-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2188-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2188-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2188-13-0x0000000001EA0000-0x0000000001EB0000-memory.dmp

    Filesize

    64KB