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Analysis

  • max time kernel
    135s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/05/2024, 23:27

General

  • Target

    2024-05-10_de7a43d8a2476f680675235ec58d8b0a_cryptolocker.exe

  • Size

    42KB

  • MD5

    de7a43d8a2476f680675235ec58d8b0a

  • SHA1

    36bca03e79bd61f527f8834ff02fda131d497184

  • SHA256

    14ff3d318c36c89873800055c34aefc2fd40c84879b99e5ac88782a7b7188698

  • SHA512

    195446d1dcba561672a62513580cce54e224e50123f0c767d5fe6069937268f752471b1ba7279ba42d0b01fc6d1232e7ea9122863dc6c9d1475217aa344c24f2

  • SSDEEP

    768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFqZrpKy:bxNrC7kYo1Fxf3s05rwxbFE

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\2024-05-10_de7a43d8a2476f680675235ec58d8b0a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-10_de7a43d8a2476f680675235ec58d8b0a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:756
    • C:\Users\Admin\AppData\Local\Temp\pissa.exe
      "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:1480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    42KB

    MD5

    d2068f2eadab600697650ceb00a7a17c

    SHA1

    7dca885e03f05f48d84bf7a173ea9b3f23a8d940

    SHA256

    b8e0531f8c2a5f0368bd803d7e5fde93e455912074610cc56217d9db3cdecf23

    SHA512

    d981abed024cb43273afd0d44f8823c4c92548063ed2009376c647e32ea03e18d60a502e516cfc09c66394435487080e9d06c30ccc9c389d3e4c49b5717b3288

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

    Filesize

    261B

    MD5

    11bed1c06d8f4680de5154405be20365

    SHA1

    9c3095f1aa0b02924c23592d1e86673bb0081ca1

    SHA256

    bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

    SHA512

    050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

  • memory/756-0-0x0000000002D60000-0x0000000002D66000-memory.dmp

    Filesize

    24KB

  • memory/756-1-0x0000000003010000-0x0000000003016000-memory.dmp

    Filesize

    24KB

  • memory/756-8-0x0000000002D60000-0x0000000002D66000-memory.dmp

    Filesize

    24KB

  • memory/1480-17-0x00000000022C0000-0x00000000022C6000-memory.dmp

    Filesize

    24KB

  • memory/1480-23-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB