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Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/07/2023, 14:45

General

  • Target

    ef20376b3119a4exe_JC.exe

  • Size

    98KB

  • MD5

    ef20376b3119a492e91ff14107ca656e

  • SHA1

    a086a2f2afc986e6522756110e8b237d2b27fb5e

  • SHA256

    fec27a0b0cb9aed90fe90f6364a14b93ac1f642aae5981946beb796af22c9b03

  • SHA512

    0c438dba7bec5c80aba609edb6ba04398aeda93e3cd9cd4b1dbd5b57a678a245f90fff592a40646c40f0254c3ac5c54f9bece4471589ae8a58df27058abb4c24

  • SSDEEP

    1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpQbCJjLyVV:AnBdOOtEvwDpj6z/

Score
7/10
upx

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\ef20376b3119a4exe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\ef20376b3119a4exe_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2072
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:752

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    98KB

    MD5

    5a429836e6e823177adaf27b1d99ae12

    SHA1

    a7c97fa355ebfd32d93bff47534211631c1c0781

    SHA256

    f9fab11bf1395f9a0a1b25bb250ef2565a5f1c43ebff3cb87946f4f361aacb33

    SHA512

    7104300dd5501d5d5221fe8ea0719f7166ff5909bc596216cb3e0f6ea5a45f9f15bb1ae68acb92fc174bb911ee61a1637add9ac3a353ee42085ba7e345402d43

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

    Filesize

    98KB

    MD5

    5a429836e6e823177adaf27b1d99ae12

    SHA1

    a7c97fa355ebfd32d93bff47534211631c1c0781

    SHA256

    f9fab11bf1395f9a0a1b25bb250ef2565a5f1c43ebff3cb87946f4f361aacb33

    SHA512

    7104300dd5501d5d5221fe8ea0719f7166ff5909bc596216cb3e0f6ea5a45f9f15bb1ae68acb92fc174bb911ee61a1637add9ac3a353ee42085ba7e345402d43

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

    Filesize

    98KB

    MD5

    5a429836e6e823177adaf27b1d99ae12

    SHA1

    a7c97fa355ebfd32d93bff47534211631c1c0781

    SHA256

    f9fab11bf1395f9a0a1b25bb250ef2565a5f1c43ebff3cb87946f4f361aacb33

    SHA512

    7104300dd5501d5d5221fe8ea0719f7166ff5909bc596216cb3e0f6ea5a45f9f15bb1ae68acb92fc174bb911ee61a1637add9ac3a353ee42085ba7e345402d43

  • memory/752-152-0x0000000000850000-0x0000000000856000-memory.dmp

    Filesize

    24KB

  • memory/752-158-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2072-133-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2072-135-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/2072-134-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/2072-136-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/2072-150-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB