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Analysis

  • max time kernel
    135s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/05/2024, 21:00

General

  • Target

    2024-05-30_2cc6c50ba36baae88880bb02a7feeb7d_cryptolocker.exe

  • Size

    38KB

  • MD5

    2cc6c50ba36baae88880bb02a7feeb7d

  • SHA1

    5ce1935e8e02a6f7e99f8d110a68ccdd38283780

  • SHA256

    424fe64ca63768ffce1e62c7236724ba8c205d7090a5f28d1ecbfd9fd02558fc

  • SHA512

    b747afe38bb7e1596f075bc617d9655a3ccb8605bdba7bd9c71d5480422835b0e52651efe2128e26a7261c225fb01f1b5e7b020f1310437c5e40611b23e7c60a

  • SSDEEP

    768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4S:fT+hsMQMOtEvwDpjoIHS

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • 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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-30_2cc6c50ba36baae88880bb02a7feeb7d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-30_2cc6c50ba36baae88880bb02a7feeb7d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3416
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:1720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    38KB

    MD5

    a7b158735cedc6faa8c86ab7ad928eef

    SHA1

    ad6301f841f2cea33d60f079a4f8fd66eb28a567

    SHA256

    e779ff12028bfdee14a3957cc0bab19538a5eb415a8ac396d5444472e685fcff

    SHA512

    2beb092c5008cacb832e5cbfe9920b8bbc4916f57384fa8bebf8af0236da08231039d7a9b0f1c4383eae5364b9d1fe504701e5b6767ef48608151f89c49b5cf0

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1720-17-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1720-23-0x0000000000490000-0x0000000000496000-memory.dmp

    Filesize

    24KB

  • memory/3416-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/3416-1-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/3416-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB