Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/05/2024, 07:36

General

  • Target

    2024-05-12_9fbcef97bfb93c019179659360a45a7d_cryptolocker.exe

  • Size

    43KB

  • MD5

    9fbcef97bfb93c019179659360a45a7d

  • SHA1

    b24f41e261d15485b6e81a6bf446f30d9a54b764

  • SHA256

    b44079dd5ff83b5893699f4a036d63e23b7a82c9ed21116ddfcfb3898e7d1bb4

  • SHA512

    1c5f115acb899f92e9484120ab12a2f16bc4169560e5bcc054f0bd414101808a7d3fac0be8191a59b2be784897b77dfa66477b3db187b3f3b7b3498976599bb2

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/CtXabM05:6j+1NMOtEvwDpjrR2XabMW

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • Detects executables built or packed with MPress PE compressor 4 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\2024-05-12_9fbcef97bfb93c019179659360a45a7d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-12_9fbcef97bfb93c019179659360a45a7d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:396
    • 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:3912

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          43KB

          MD5

          f66852f3d1653dead33dd8620954b4a1

          SHA1

          7f5d53d714715b6ffce285d9b6b5f2de2003f8ba

          SHA256

          e30266269f096d26b2f45c1cbca664cd617f63d53cf307f36ec7956072d2bd10

          SHA512

          3c8c5a92d4d2e70cb31e2a6f82d5616bf583ec9354ed10e770c25ea4fb41e3ef38b1323782266bbd0bf874c1d4231c2ebd15488041aeaea04b00058c54408693

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/396-0-0x00000000021C0000-0x00000000021C6000-memory.dmp

          Filesize

          24KB

        • memory/396-4-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/396-8-0x00000000021C0000-0x00000000021C6000-memory.dmp

          Filesize

          24KB

        • memory/396-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

          Filesize

          24KB

        • memory/3912-16-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/3912-19-0x00000000005C0000-0x00000000005C6000-memory.dmp

          Filesize

          24KB

        • memory/3912-25-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/3912-48-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB