Analysis

  • max time kernel
    95s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/11/2024, 04:05

General

  • Target

    2024-11-21_a48b74aefd24d493205767dc1eb5b0eb_cryptolocker.exe

  • Size

    50KB

  • MD5

    a48b74aefd24d493205767dc1eb5b0eb

  • SHA1

    ea914da6e072dce810ca10bf35dab4479aa1187b

  • SHA256

    71f08a8bebfb96266b6b3e1bab4f3d1505b66554a886ef2115a0999f13746b7a

  • SHA512

    30d87cc35a3fc7c05c6f6cfa8aaa89eec016ed938d02523047834ba1dba0617eaf3cf52edbaed9f0f398f5ceec05e531e87dabbb3f66962301137a924908ff01

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr42A7n0FmB0n73:vj+jsMQMOtEvwDpj5HczerLO04B4

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 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-21_a48b74aefd24d493205767dc1eb5b0eb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-21_a48b74aefd24d493205767dc1eb5b0eb_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4532
    • 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:3512

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    50KB

    MD5

    1dbba8df5af6418d1caa77218d8bfea0

    SHA1

    85d0e1c0e36b808c4a8c481efdda2fafb8229174

    SHA256

    66deefab41efd377ba83b68908afab0a1cdf2b60da471a2c736edfaf8967c6fa

    SHA512

    043ed297fadc2170c83204429147061e24259fc87a713e251e186b5a0f3af47d43a67b025e68b2d52a91f41e4df51f41a4e180ecc79843207da34a578e993bb9

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3512-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3512-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4532-0-0x0000000002140000-0x0000000002146000-memory.dmp

    Filesize

    24KB

  • memory/4532-1-0x0000000002140000-0x0000000002146000-memory.dmp

    Filesize

    24KB

  • memory/4532-2-0x0000000002050000-0x0000000002056000-memory.dmp

    Filesize

    24KB