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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/10/2024, 11:23

General

  • Target

    2024-10-04_66b03a7ae7096f495ffdee019a443de5_cryptolocker.exe

  • Size

    74KB

  • MD5

    66b03a7ae7096f495ffdee019a443de5

  • SHA1

    2d2339d6e57eff42b4e31f5ff31e273b689fa8db

  • SHA256

    3afe9034d7ad3ef2645c13a3a353c132edc7aaf376f783478a47ef391ac626e9

  • SHA512

    981daf4b4d1ff3b0800135d9a8b77c9c0d233d50be90bd920ce272b8e201a12983325d3d3f542854f32bd5118e727adc06cdf9c324a5339beb812389e15ea487

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/RH:vj+jsMQMOtEvwDpj5HZYTjipvF24pR

Score
7/10

Malware Config

Signatures

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-04_66b03a7ae7096f495ffdee019a443de5_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-04_66b03a7ae7096f495ffdee019a443de5_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4004
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:4704

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    74KB

    MD5

    7e6596bc4ee80d24191925f01413e61c

    SHA1

    abb94215055c98d5cb2cdbbed2adc9a099e07dfe

    SHA256

    ccbcd85f40e9e2ccf1e3542e41c275823399531e867f170e023e1db923025437

    SHA512

    eb28d5d199f47f2763841883c017b320a5c7574a33ffcdba8efd48cde6ab173732bce8b9d6ca2804eca571a5eacb742114048ae4343e97b436982caf230b524e

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4004-0-0x0000000002280000-0x0000000002286000-memory.dmp

    Filesize

    24KB

  • memory/4004-1-0x0000000002280000-0x0000000002286000-memory.dmp

    Filesize

    24KB

  • memory/4004-2-0x0000000002180000-0x0000000002186000-memory.dmp

    Filesize

    24KB

  • memory/4704-17-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/4704-23-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB