Analysis

  • max time kernel
    129s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-09-2024 06:32

General

  • Target

    2024-09-07_406085c6b969f605ae3cd47105b05ce8_cryptolocker.exe

  • Size

    75KB

  • MD5

    406085c6b969f605ae3cd47105b05ce8

  • SHA1

    2a90d324cdb54503cca27e2b023d3dbc3127fa04

  • SHA256

    2f4bd0bf1f91fdb3eadd18734c9f4980665a2e2eeb54203915d605106a003163

  • SHA512

    f24776d0bffcb239f9f34b6aff5c010d34c130e6ec60dead214a7fa0390e835f86c46c10416a432f5dc50250d102383ff4538a95be3a081562ada5cfa0e985cd

  • SSDEEP

    768:9UQz7yVEhs9+4T/1bytOOtEvwDpjLXOQ69zbjlAAX5e9zv:9Uj+AIMOtEvwDpjLizbR9Xwzv

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 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-07_406085c6b969f605ae3cd47105b05ce8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-07_406085c6b969f605ae3cd47105b05ce8_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2008
    • 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:1240

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    75KB

    MD5

    99ac742043bf8437fe92814a588b8e17

    SHA1

    a35fcbc74d29480c6242ee4dfe84986ae65a235b

    SHA256

    fbf462107677dd4222e46fea3ca026099a3a821c3e64cc18ab10dd922be3a011

    SHA512

    5e0e31ccd5ec940fa85c82aa8a4aa804a4c13e27e2ef8a710e27e6a3c3b1730ba4a5ec1504f8d6f0876399533bcabb14b76c4ad10fb6640a33f29cc6459785d9

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1240-17-0x0000000002100000-0x0000000002106000-memory.dmp

    Filesize

    24KB

  • memory/1240-23-0x00000000020E0000-0x00000000020E6000-memory.dmp

    Filesize

    24KB

  • memory/2008-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/2008-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/2008-2-0x0000000000610000-0x0000000000616000-memory.dmp

    Filesize

    24KB