Analysis

  • max time kernel
    94s
  • max time network
    124s
  • 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 05:30

General

  • Target

    2024-09-19_62a95833eafdb857b227a8ef669cd63e_cryptolocker.exe

  • Size

    38KB

  • MD5

    62a95833eafdb857b227a8ef669cd63e

  • SHA1

    38161182755b31209aefe170a55cf5e3272326f2

  • SHA256

    1777c99182a77f7309b67c3f1a6b7c3503111420d61d67377a3459542fb102c9

  • SHA512

    8c22a7ababb7b5fedc091b910cb5c9f2e9cd432bfb0a806ce45e0f45fe9cffb1ab543bc68e57ff1fb5b4eeaf5d70bea2344decfeb622be4fbbbf3dbeba8e4b48

  • SSDEEP

    768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4XYNN:fT+hsMQMOtEvwDpjoIHI3

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\2024-09-19_62a95833eafdb857b227a8ef669cd63e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_62a95833eafdb857b227a8ef669cd63e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3164
    • 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:4928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    38KB

    MD5

    a0f5d86656ce7e3c8610226a4a30622d

    SHA1

    f1ffe10a64c2623af46e9194fc7ede98bf6d34bc

    SHA256

    96fcb3288823f4238da062792e595433ec6a0e177c0629df32db3f9633c675b4

    SHA512

    037d8f8da767a2536f9e40eef4fb8d2a3a8ac8996ea65fc14649422cea1c57afe947aecc5e9af265070e2924e08927d4d2b3af5c10649428d036af834e0b5500

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3164-0-0x00000000021A0000-0x00000000021A6000-memory.dmp

    Filesize

    24KB

  • memory/3164-1-0x00000000021A0000-0x00000000021A6000-memory.dmp

    Filesize

    24KB

  • memory/3164-2-0x00000000021C0000-0x00000000021C6000-memory.dmp

    Filesize

    24KB

  • memory/4928-17-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/4928-19-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/4928-46-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB