Analysis

  • max time kernel
    142s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-08-2024 20:42

General

  • Target

    2024-08-11_1970c596cdbbf2ba5d66d2bd54609e3a_cryptolocker.exe

  • Size

    86KB

  • MD5

    1970c596cdbbf2ba5d66d2bd54609e3a

  • SHA1

    825eca8b71583f9b85d956e333ff1dcd1b61b3e8

  • SHA256

    798dbabd97bb9218e57bf35842d29d7393982c4a4392f357034c744295104841

  • SHA512

    ecefc84da2c338926800a557b04be3e398397ec9843f509bff14521409029c22aaba9de85e99be9276a19976001ed6fd2d498cdd08e22e79793d250b4a433879

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrCsK:TCjsIOtEvwDpj5HE/OUHnSMu

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\2024-08-11_1970c596cdbbf2ba5d66d2bd54609e3a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-11_1970c596cdbbf2ba5d66d2bd54609e3a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2424
    • 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:1612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    86KB

    MD5

    c8e7274ad3e15ee7569e9efe39c732db

    SHA1

    67450e7c0bef69dc116c1ed2b2640ec01391e817

    SHA256

    60190e314984174905282d4115b43a64292db8752fc7b09776f92d10770e9d76

    SHA512

    052c5dead6c3103d2c4505e7b71b0549eb01ca7d1f12e76d177cbd95255068dc7bfb1ccef085d9cef79e2268d6f895875e5e1f19357a8b2188b165ea30cf8922

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1612-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/1612-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/1612-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/1612-49-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2424-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2424-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/2424-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/2424-3-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

  • memory/2424-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB