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
    05-07-2024 06:28

General

  • Target

    2024-07-05_955f304865f10d48ce98a733200b6fdb_cryptolocker.exe

  • Size

    30KB

  • MD5

    955f304865f10d48ce98a733200b6fdb

  • SHA1

    f96b1bfe0ed7e8d1cbfae39b35edc746d48ee4e0

  • SHA256

    72822f7471f6062e2bccc0c93658e42cf55f44ba311e713fbc7c103d60a0231c

  • SHA512

    2beba5bdb38777924dafd5c6df969d74853c267e2b9fcc8ef945174e297d7ffb46b9bdf4f0d563537a4db6bf36531da47fc790bc25c55c39f35f96cdefbd1211

  • SSDEEP

    768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNfU:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XR

Score
7/10

Malware Config

Signatures

  • 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\2024-07-05_955f304865f10d48ce98a733200b6fdb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-05_955f304865f10d48ce98a733200b6fdb_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4600
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      PID:1752

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    30KB

    MD5

    83ee1f5ef089570c307f71a18c395da6

    SHA1

    b3b2e4110f65b2ca5062c83a4f460be4c63886c4

    SHA256

    174a360b252e11fd5123f533e6e450c1b8c03724f51158c6b084b88daf69904d

    SHA512

    ea5f7c2f01ff45b97bd6ea6aa1891f066fb8e1ceb085793366c8daf32f97a66f95c40520787ad962f37d803110ac6ad8ba37b0af0f52c24fcc3ee1d87ff313cc

  • memory/1752-25-0x0000000002040000-0x0000000002046000-memory.dmp

    Filesize

    24KB

  • memory/4600-0-0x00000000020C0000-0x00000000020C6000-memory.dmp

    Filesize

    24KB

  • memory/4600-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/4600-8-0x00000000020C0000-0x00000000020C6000-memory.dmp

    Filesize

    24KB