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Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28/02/2024, 12:43

General

  • Target

    2024-02-28_05c1b99e40619e0a5f96f4a69525b700_cryptolocker.exe

  • Size

    52KB

  • MD5

    05c1b99e40619e0a5f96f4a69525b700

  • SHA1

    f8ff7dc30eb4f4b82fcf80fdb7078bd096071e0e

  • SHA256

    bb095aae199ccfcba3764055b85fd94d40ed1504c46b67a0c31d4bcb01a9674c

  • SHA512

    50abcac4f0f76aff6351938ab03bcfb9763d0dfdbdf7a192a50e9e7f0f1ebd623b310bc05b940c340acd954d5834ed8d321d4a6a82c36dbf4cafc55cfdfe1a0f

  • SSDEEP

    768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qn8pKIRsznl7:79mqyNhQMOtEvwDpjBxe8TpXRSl7

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 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\2024-02-28_05c1b99e40619e0a5f96f4a69525b700_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-28_05c1b99e40619e0a5f96f4a69525b700_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\asih.exe

    Filesize

    52KB

    MD5

    b19e99cf262dd11ef512f17cf15af4d6

    SHA1

    dd80d427451aecdafa2e950990aee352217faa69

    SHA256

    92baf616c7c33a96240ba3c8ffad955095da6fdfbac4badfe10e87ac57de487c

    SHA512

    6261e752d6b42117cb96bb9f5e6064cdc34e530e572833b5e0fdfb3e50593871d117544c0e212e765023e3e22c0180b7e65f01bec0dfe766324da997a3470037

  • memory/2992-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2992-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2992-2-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2992-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2992-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2992-13-0x0000000000600000-0x000000000060F000-memory.dmp

    Filesize

    60KB

  • memory/3036-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3036-19-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB

  • memory/3036-22-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB