Analysis

  • max time kernel
    95s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-07-2024 20:44

General

  • Target

    2024-07-08_ad9983a1051bf98ee107d191b30b7f01_cryptolocker.exe

  • Size

    787KB

  • MD5

    ad9983a1051bf98ee107d191b30b7f01

  • SHA1

    7918dd6a73e6308ddc26644a9ab482182bfc954c

  • SHA256

    9503ce48fe3d61b37c01edd7e9c0ca3e6e9bf9a4a2a65fda1e2a7a5ba192c640

  • SHA512

    3ffb48f379ad1f1b8edbe30b15b73c0beec6f0d539d238e15650ef6d9118fe0926fbb7640c48ff511826ee11fb8574e447ec649b2c1d87c2a99b6f762357c5ff

  • SSDEEP

    24576:aHQVCB9lVF1lVF1lVFkUEi019za5F+DLK9bygw6X/pj:aHAg9lVF1lVF1lVFkUEiiCX/p

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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-07-08_ad9983a1051bf98ee107d191b30b7f01_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-08_ad9983a1051bf98ee107d191b30b7f01_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4264
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2488

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    787KB

    MD5

    7533f08e65044f1f4a55bb0c545cf94f

    SHA1

    2476cbef3b82214ae1f778e132a60d167de6dbf2

    SHA256

    2ae3723bdc8d6c847455beece9b78305aa8212343208a7ed26980874ab3b442a

    SHA512

    0679629529da543c1cae65d7adbd492050de3eb692ec2b90a99432d5aa63691a58b005fd88493622897088ddd0dfcd81b84d98d11846a7ee955e6824ccecd008

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2488-23-0x00007FFCB57D0000-0x00007FFCB59C5000-memory.dmp

    Filesize

    2.0MB

  • memory/2488-18-0x0000000002080000-0x0000000002086000-memory.dmp

    Filesize

    24KB

  • memory/2488-46-0x00007FFCB57D0000-0x00007FFCB59C5000-memory.dmp

    Filesize

    2.0MB

  • memory/4264-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4264-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/4264-8-0x00007FFCB57D0000-0x00007FFCB59C5000-memory.dmp

    Filesize

    2.0MB