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Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21/02/2024, 16:47

General

  • Target

    2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe

  • Size

    54KB

  • MD5

    78059d945f9c9d4f6c0d3e3a8fc09fd5

  • SHA1

    c5afd4604de4f2f1111fce8f3b7fe1324e3eb9c1

  • SHA256

    27ad2d13ca9d5948453e4ef9ff4dee05972162f1f8dca3796fc6dba3e74ad8e1

  • SHA512

    9f675d8b1d36e4e89d5ffbe5ff51d1c1b4f1a99db551c6fcb6f39b4fdabf8a621ecb096180f6b73ec47a1095f2b5e9f883b285276902059220d4a47fd6080d04

  • SSDEEP

    384:x0VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26a4rIcVRYp055TOtOOtEvwDpjqIGR57:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbKq

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
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-21_78059d945f9c9d4f6c0d3e3a8fc09fd5_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2100
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2548

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    54KB

    MD5

    1641f08104f14ee0e2c2354417307ad4

    SHA1

    467d6ddf97a2dda3ccbe37ddbabb8f42f81bc5dd

    SHA256

    552d1df3114404d78e47620af64108e520821b99290e355603c30ee7201f67b8

    SHA512

    ee4a4e1d0011bcfa761ce0da58b3a07dee566cbb2269ac0901e8b96bd89dffa9e60fda3d204631215045e31600f88a9ae6a90235ecf48f9ce27430318663cad0

  • memory/2100-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2100-1-0x0000000000430000-0x0000000000436000-memory.dmp

    Filesize

    24KB

  • memory/2100-2-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/2100-4-0x0000000000430000-0x0000000000436000-memory.dmp

    Filesize

    24KB

  • memory/2100-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2100-17-0x0000000001FA0000-0x0000000001FB0000-memory.dmp

    Filesize

    64KB

  • memory/2100-27-0x0000000001FA0000-0x0000000001FB0000-memory.dmp

    Filesize

    64KB

  • memory/2548-19-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2548-21-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2548-18-0x0000000000450000-0x0000000000456000-memory.dmp

    Filesize

    24KB