Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    27/01/2024, 00:35

General

  • Target

    2024-01-27_9239435974eee9b09386b1ed5e0d54e8_cryptolocker.exe

  • Size

    78KB

  • MD5

    9239435974eee9b09386b1ed5e0d54e8

  • SHA1

    af801282eeeb53ff68df46a8bc0e53990cbb618e

  • SHA256

    eaf2808de983cc0b69cb32306f8dfcd9890c1abd12e0c7cf3829aaeff2abedd6

  • SHA512

    3354b6755105ec890a4b13ad3a2f51a6c2ea9cb06724dcb083af821f3de788f52ad2cb263977c1b49e004dcb663779f10a456b1bc78d14041aac1b637aa2c8c6

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHFb:vCjsIOtEvwDpj5H9YvQd2t

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 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\2024-01-27_9239435974eee9b09386b1ed5e0d54e8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-27_9239435974eee9b09386b1ed5e0d54e8_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1984
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    78KB

    MD5

    b0a58a5e3f887fdd3e7d2f849891999d

    SHA1

    7c37f7759c79e92d50a635f0ff64182d4e7eaf53

    SHA256

    9dd44188ede81050ae896756386162a8996a44e52191c7f2254952a10c285a6c

    SHA512

    973a66f1364c0c0c47faeec3c10944e26151e5a87ff752552ba6c9e4f7a0818bf8705785205729769cc973d76392314033a7e3b3ad0686aa0984b7f0b54f67e6

  • memory/1984-1-0x0000000000470000-0x0000000000476000-memory.dmp

    Filesize

    24KB

  • memory/1984-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/1984-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2000-15-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/2000-17-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB