Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 17:12

General

  • Target

    2024-06-12_9439a0c4a7880e6d9843517b732e9694_cryptolocker.exe

  • Size

    41KB

  • MD5

    9439a0c4a7880e6d9843517b732e9694

  • SHA1

    9363dc101688be8befffc379c47226feb5bd3613

  • SHA256

    a3954fdbaffd74c474a3af245900c83b017bcd4699314c8f21d7197479f34a91

  • SHA512

    3dfb0275ef6fa5f4ea068bb06a1c9cdac41bf8bb2044dda61856d1400f0b88f8118422eea2a1dd250d8cf2f1ebe42a224bd0d1715fbee043c683e07b4d7c0ad8

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuD+8:ZzFbxmLPWQMOtEvwDpjLeJAsKcZ

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-12_9439a0c4a7880e6d9843517b732e9694_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_9439a0c4a7880e6d9843517b732e9694_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2248
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3972

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    41KB

    MD5

    3f02029863948d49c33ff9e9e324488f

    SHA1

    85fc2c2871b4a53474410af836d88e299d083923

    SHA256

    13bfe39f56efc483b7efc0b7aa997640e6ac90fe0d94e31aafa8c88c1d33752e

    SHA512

    9128bf1a0dcae978b954010c883056edfb4f3556f998f36cf418707872188144ffdad12c1a101b1cdf0c05f5978f317664f097b369084d09748cca0bc53db9c5

  • memory/2248-0-0x0000000000410000-0x0000000000420000-memory.dmp

    Filesize

    64KB

  • memory/2248-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2248-2-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/2248-9-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/3972-17-0x00000000004F0000-0x00000000004F3000-memory.dmp

    Filesize

    12KB

  • memory/3972-25-0x0000000002060000-0x0000000002066000-memory.dmp

    Filesize

    24KB

  • memory/3972-19-0x0000000002080000-0x0000000002086000-memory.dmp

    Filesize

    24KB

  • memory/3972-26-0x00000000004F0000-0x00000000004F3000-memory.dmp

    Filesize

    12KB