Analysis

  • max time kernel
    92s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/09/2024, 01:23

General

  • Target

    2024-09-29_2fe805553e769d35d3957def2c7db5e8_cryptolocker.exe

  • Size

    37KB

  • MD5

    2fe805553e769d35d3957def2c7db5e8

  • SHA1

    d90b995f7690e6296378d253eb9dd60288cdf4d0

  • SHA256

    f1c1f0dffb139c5096ca63d7950268b5f852d38587ec9860c2665d0c42e56812

  • SHA512

    0d2d6ec0b2ba1b38b6d23c90996e164d06f9e52a235a865ded7b62b4588638b6c58dcb6530555193f5263c00182141760081508593c329c88cdde69772a1c3e3

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL3hrM8:vj+jsMQMOtEvwDpj5H+M8

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\2024-09-29_2fe805553e769d35d3957def2c7db5e8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-29_2fe805553e769d35d3957def2c7db5e8_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2452
    • 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:4156

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    37KB

    MD5

    25e0a00e3c2bc11480abf1833d5a5aa5

    SHA1

    d4b4e167c1baab1fc1d598a88628dc055b5b9a35

    SHA256

    fb9be90554dbc2449a3e86e734140118d87c17579de78b442306ad9c8eb70c68

    SHA512

    19f90829c59ec79b90f67d85d3bf19519d2ab36f3010a645a9a602eb382ebb940c48008016642fec912cbb87d029009e7f2ad7b4ce1e700cb7f3b22bba4ae32c

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2452-0-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/2452-1-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/2452-3-0x0000000002220000-0x0000000002226000-memory.dmp

    Filesize

    24KB

  • memory/4156-23-0x0000000000650000-0x0000000000656000-memory.dmp

    Filesize

    24KB

  • memory/4156-17-0x0000000000670000-0x0000000000676000-memory.dmp

    Filesize

    24KB