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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/03/2024, 15:25

General

  • Target

    2024-03-14_034622ef529ee38f1f6f7d1c21417689_cryptolocker.exe

  • Size

    49KB

  • MD5

    034622ef529ee38f1f6f7d1c21417689

  • SHA1

    29897c0bff2981f2b3bf437d77f4f28536cc5a07

  • SHA256

    3e10ec094f24f5d741182d60158b918d796ce807ac060773631e9c552a81285c

  • SHA512

    7afa2173fcd56370641d47a1991938bc55eb898828155446bd96d8e9fef10d25ec1a6048dc34e297bf32264d485b89ad8ed426e9fe87e3b37477478994cc5820

  • SSDEEP

    768:qmOKYQDf5XdrDmjr5tOOtEvwDpjAajFEitQbDmoSQCVUBJUkQqAHBIG05WTB52zl:qmbhXDmjr5MOtEvwDpj5cDtKkQZQ6uj1

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Checks computer location settings 2 TTPs 1 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-14_034622ef529ee38f1f6f7d1c21417689_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-14_034622ef529ee38f1f6f7d1c21417689_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3952
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1196

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    49KB

    MD5

    6e1c8259a385697b7ce8fbd4d16716d4

    SHA1

    8911dc0d8f5f1badde928608dfcda8c3fb73b4cc

    SHA256

    02604d9e83db13d51afb1d9138c73048378df4a9f383803ed4675cb2a4b611a0

    SHA512

    2df428f9a1cfbfe55f40fcbda4c4be916e465da75cb4d6eee7f82c9caee01d36a9fc203d57ae18c0052e5b9d0563e8bdf1a4a896a834198338fcab9994219263

  • memory/1196-18-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1196-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/1196-23-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/1196-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3952-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3952-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/3952-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/3952-3-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/3952-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB