Analysis

  • max time kernel
    94s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 03:32

General

  • Target

    2024-09-19_7ca20b22c52334a580b3d7420779bc1e_cryptolocker.exe

  • Size

    87KB

  • MD5

    7ca20b22c52334a580b3d7420779bc1e

  • SHA1

    c15e10ce03c19dde019e0950d7121377adcc3298

  • SHA256

    9104de58333dc4200bab41bd32873ceb215484073d50d05d4906e78baf928ef7

  • SHA512

    7b12c73112fca50b9ef18e94ff0fbe40b7f536abfb9310f147e42355808115665d30a72d5be27d5098b136eb1dcc57588d3579f6651b9971fd7a86840b3f25ba

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNBlk:vCjsIOtEvwDpj5H9YvQd2C

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\2024-09-19_7ca20b22c52334a580b3d7420779bc1e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_7ca20b22c52334a580b3d7420779bc1e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1064
    • 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:4940

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    88KB

    MD5

    70f3de73a2cc8ae4c29e98f75074916c

    SHA1

    fe40b6e62ef7d793f1f8675117478e7f592fc471

    SHA256

    ef96c0e98b68c077cec1ff607ea507b73ef9b19ffd01a0c01db51e335c5d8e9c

    SHA512

    32024f4cb174e73a70ba05f976056447f5532f331e6f6b442b56bcb0552d76b1cf67e3bfccf090a3f09bb3baa55593bbdce8ae0ab273929402ba4ae3cd809899

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1064-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/1064-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/1064-2-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/4940-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4940-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB