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Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/02/2024, 22:40

General

  • Target

    2024-02-19_6f931306b5fdea3c0803b4a759793211_cryptolocker.exe

  • Size

    32KB

  • MD5

    6f931306b5fdea3c0803b4a759793211

  • SHA1

    e8553773bc2799731e6876ade3613c4ac899cb82

  • SHA256

    5bb754176a745e7fe20a3402873d8a6d531a329ec72ebc95ceb84fdc4cf3b3fe

  • SHA512

    716a7e1af71801b3db9c84f8f7ca2f768a731bfbf7bd4a7056cc636d22bff412c315abb02c55a0b19f0d6813d229ded95e8d71deba8ea601617992048d45c3eb

  • SSDEEP

    384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cuM9gpD:bAvJCYOOvbRPDEgXRcuM9gt

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 2 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\2024-02-19_6f931306b5fdea3c0803b4a759793211_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-19_6f931306b5fdea3c0803b4a759793211_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3136
    • C:\Users\Admin\AppData\Local\Temp\demka.exe
      "C:\Users\Admin\AppData\Local\Temp\demka.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:4304

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    32KB

    MD5

    714773eba46a6127f4d0977129d804f9

    SHA1

    412e5ecb3174e2a6125dce703e91c42ba2a68201

    SHA256

    2e3993e83a4fa59be6e9d3481237aee00df3a87f404ee0e826425a38a00f198f

    SHA512

    ad2a751f3af975ea318b08c303c5a580aec0cf8cb1858dc180cde7094b9bf983f822e2c72fcff3bbe0ba892f7ae8961f9ee82394c5b5a6d675ee066d0340714c

  • memory/3136-0-0x0000000000730000-0x0000000000736000-memory.dmp

    Filesize

    24KB

  • memory/3136-1-0x0000000000730000-0x0000000000736000-memory.dmp

    Filesize

    24KB

  • memory/3136-2-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/4304-22-0x0000000002010000-0x0000000002016000-memory.dmp

    Filesize

    24KB