Analysis

  • max time kernel
    95s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-09-2024 12:17

General

  • Target

    2024-09-05_e7f8e1ccc572f1f6153f06f009ed9f51_cryptolocker.exe

  • Size

    40KB

  • MD5

    e7f8e1ccc572f1f6153f06f009ed9f51

  • SHA1

    c7560b84a613c6f71b507ad8f665cf732746b42d

  • SHA256

    11c8174892ab1ac0c9b3ff2567f9000c76d41464ab13a33877b94ea60e80d3b1

  • SHA512

    487875cab117f7ee0519e699bf421e1a2648edb28b3422208472c4d887a10020886b908e78279e04b63c98c7fb1eb5e19bf8548136ecfe00084861092963c076

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuD+r:ZzFbxmLPWQMOtEvwDpjLeJAsKca

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 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-05_e7f8e1ccc572f1f6153f06f009ed9f51_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-05_e7f8e1ccc572f1f6153f06f009ed9f51_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:972
    • 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:3680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    7242c19af2d59cf12a95896d6984b68d

    SHA1

    c81a663d337e2bd33791f3e82d5074ec36e87b64

    SHA256

    e136a58b259c1eb47eb3efa7e7f908d41e81b89badcca658fa6383199e34b1e5

    SHA512

    8710c9e9cba9490eb208fdcccd78b3c06aa056c638590a10efb18c6bf8309dc8fa42ec13e58922b62f21983cd71f76ad90e257262468714d13e46725b4feb220

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/972-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/972-1-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB

  • memory/972-2-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB

  • memory/972-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

    Filesize

    24KB

  • memory/972-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/3680-19-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB

  • memory/3680-25-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB