Analysis

  • max time kernel
    149s
  • 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
    09/06/2024, 09:50

General

  • Target

    2024-06-09_7316b555a324bbfb45aefd30863b6a09_cryptolocker.exe

  • Size

    44KB

  • MD5

    7316b555a324bbfb45aefd30863b6a09

  • SHA1

    244c6fad81cfe7b53dd3618b12e5ebde7e8d4e9a

  • SHA256

    cdf42ee6cab6ea5fc8467eed5b195e85dcb3456b1950e15ba84b3e367246da21

  • SHA512

    eb5a423a84f54148f4f2b1ef5d3e3d5e7710bc7c2d6b6f339c8c923c25cd821eda24dd5f9dedcc8021ca87706ef90deb1daa7b89c8ba5cb21c24b43d560c8daf

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66TcuRg:vj+jsMQMOtEvwDpj5HW5scuy

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-09_7316b555a324bbfb45aefd30863b6a09_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-09_7316b555a324bbfb45aefd30863b6a09_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:740
    • 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:1600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    45KB

    MD5

    7ec01c7215f7101a29c5ae31e05aec06

    SHA1

    ef5c205d027645f6852cf002200295bac81019bf

    SHA256

    665ad12bbabc151d84c668adb5a4a5d91728420e8cf98398d16fe1dd4ab1a1a1

    SHA512

    c7cbd9cc51ec1119c385e43ddf32305ec14b85bfe57eb20ca3d6cdeb5363f57e75217f94c5cbdc5928b754e2f3dc7f51ec1d4c9e34d3b787c6385bd5640b70fa

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/740-0-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/740-1-0x0000000002000000-0x0000000002006000-memory.dmp

    Filesize

    24KB

  • memory/740-8-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/1600-17-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1600-23-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB