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Analysis

  • max time kernel
    93s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/08/2024, 12:38

General

  • Target

    2024-08-08_c90ddbb406317775b15cb014c9017dcd_cryptolocker.exe

  • Size

    82KB

  • MD5

    c90ddbb406317775b15cb014c9017dcd

  • SHA1

    dc07d89e79db4b4cd748e31ab09c0d4f906ef19f

  • SHA256

    8a27be8a61aef68303e07a4cc893bf64459ff02627aab33e248ad84d50f49007

  • SHA512

    38f52933b1ca0f40e11140c35f04da48c33c246cc120476dac4bed3f712641865a7044baf1ac6f374e1e9395b228068f506266ba76803ae6ea96ae508bc7013c

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7QT:zCsanOtEvwDpjH

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
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2024-08-08_c90ddbb406317775b15cb014c9017dcd_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-08_c90ddbb406317775b15cb014c9017dcd_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4224
    • 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:2584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    82KB

    MD5

    01741b12030aec2899592c4bac157ee8

    SHA1

    b323035a1ff74a0545210571c01e850c8cc9cec2

    SHA256

    573683065ce5b45da3387f37dc7f54e5a9f690b9621b3bd85e4c74203ec4d644

    SHA512

    1f1e890c2aaaed811c8b194021f3ea3839ecdab55e730ecc31be4636beed491c0e0190eb6b351a34479853f91122924b96a0b44d5c3147eccaa435027337ebcc

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2584-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2584-20-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/2584-26-0x0000000000530000-0x0000000000536000-memory.dmp

    Filesize

    24KB

  • memory/2584-47-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4224-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4224-1-0x0000000002050000-0x0000000002056000-memory.dmp

    Filesize

    24KB

  • memory/4224-2-0x0000000002050000-0x0000000002056000-memory.dmp

    Filesize

    24KB

  • memory/4224-3-0x0000000002090000-0x0000000002096000-memory.dmp

    Filesize

    24KB

  • memory/4224-18-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB