Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-06-2024 03:40

General

  • Target

    2024-06-09_5864028980512bc1448bdfb7b1844025_cryptolocker.exe

  • Size

    77KB

  • MD5

    5864028980512bc1448bdfb7b1844025

  • SHA1

    573194d9d1930a0711db97a979ce67e663911d09

  • SHA256

    d529207e17019a9c1ad475ea5858e0b0d3f9b3596cedf0ee7d5db7693557f0f3

  • SHA512

    4850d1a5811e5ac4b327174758ef1e3bdad4b77f6b54b4d4c3cd474c8ec7df2c2ce0e505d5ed8fc00b6756f25676308d229dc54e2648158d7921b1193436bcd9

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KUn:ZVxkGOtEvwDpjcaj

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-09_5864028980512bc1448bdfb7b1844025_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-09_5864028980512bc1448bdfb7b1844025_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3464
    • 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:2592

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    78KB

    MD5

    195076eb2dfcb004140a82e1619f431c

    SHA1

    cd19490e80edc0f66edb40384ee022f4f63a3c80

    SHA256

    8c15f379304b6d87615faf2d788721840276b9cee2b360c8611f62f557515747

    SHA512

    b5a37d37011bc1336c05aae835f18deaff87d8d022ee571fc62d202cbe2feb57e1230dacaf5ce9c489b89299d589b4d139037256a1d277760dce69b984060b38

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2592-19-0x0000000002040000-0x0000000002046000-memory.dmp

    Filesize

    24KB

  • memory/2592-25-0x0000000002150000-0x0000000002156000-memory.dmp

    Filesize

    24KB

  • memory/3464-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/3464-1-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/3464-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/3464-9-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/3464-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB