Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/09/2024, 03:52

General

  • Target

    2024-09-12_ea4bae779f6b05766f848df146c981f5_cryptolocker.exe

  • Size

    79KB

  • MD5

    ea4bae779f6b05766f848df146c981f5

  • SHA1

    c301314febfb1a87942486af43f87210eedf70ad

  • SHA256

    7ca1b7bf2f0202338f356f68fdb3a30682c347f738a2df9a09f2b50d79c891e8

  • SHA512

    66b97043501c48d9671e895eabe6bf33f227e6d350531cd3e6336c7d8b4651ddfa4c6d047b45f611ae14b03c8370b894e1df2237c30f7f1d7b32d9386519152d

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KUo:ZVxkGOtEvwDpjcas

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\2024-09-12_ea4bae779f6b05766f848df146c981f5_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-12_ea4bae779f6b05766f848df146c981f5_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2160
    • 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:1480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    79KB

    MD5

    b64e2868785c7d0c3e7642b8f5484191

    SHA1

    ba72b82002ef8545764ec2d5845b9ae847e9a094

    SHA256

    4beb8a17f6a2ec46511f9ffd4a0deee20085d6a729d3e8727f1f699835c073d3

    SHA512

    a2a2ce4fd7122f5790914f5b96f1858520d524d5d62dd1ee0b2a0a76f86fc2d1d38deafea4bbf31425f9283796e509de796ee7831f6cdb1e97f3754254cecb00

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1480-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1480-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/2160-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/2160-1-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/2160-2-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/2160-5-0x0000000000640000-0x0000000000646000-memory.dmp

    Filesize

    24KB

  • memory/2160-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB