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Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2022, 00:14

General

  • Target

    8404719497ca6b5b09ee72a6488eb4bf09f2654b764cc8ff6329fbfe6585ff57.exe

  • Size

    189KB

  • MD5

    0a62f67759e3ccb71f4e2968e8bd3020

  • SHA1

    b4c5dc55dbd5fe6eb24349a26c60411d9f6a99e7

  • SHA256

    8404719497ca6b5b09ee72a6488eb4bf09f2654b764cc8ff6329fbfe6585ff57

  • SHA512

    2a6894a6c9e676410ca2d7fa28a1298a709fecfcb004eb3196d14dd9ebf5b3c36af782b184e35db3931526fb88541f15c49d896666d9a8aec63d985057afc8af

  • SSDEEP

    1536:/vVQb4cLIkN+4Weat2RKLjWlC48Pp9JAcjYSrowfFD:/vVQLIkLWeaA8KlCph99rowfFD

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8404719497ca6b5b09ee72a6488eb4bf09f2654b764cc8ff6329fbfe6585ff57.exe
    "C:\Users\Admin\AppData\Local\Temp\8404719497ca6b5b09ee72a6488eb4bf09f2654b764cc8ff6329fbfe6585ff57.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:4900
    • C:\Program Files (x86)\a6775138\jusched.exe
      "C:\Program Files (x86)\a6775138\jusched.exe"
      2⤵
      • Executes dropped EXE
      PID:4864

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\a6775138\a6775138

    Filesize

    17B

    MD5

    7bdf61d37c9adf3e1c6937107016091f

    SHA1

    56b8e0c454f9dd16d508a04b3afa7e458453ac41

    SHA256

    4c57d86c256214baa0a5a3322ef5cdd575210455b7e964ad60382bd9d4be12e0

    SHA512

    ff4fc1a427c84f47042375749f45ee6edea73b902ae977f14243ebceb7b9a28f41fe5dd404e3ea381754d9122202bc6b61ed0152b20a1c1be76c225dd20861d1

  • C:\Program Files (x86)\a6775138\jusched.exe

    Filesize

    189KB

    MD5

    71908b4260ed94ced3f7997a25cdc461

    SHA1

    fdd67c2043886f4d047e6efb7b6aea75c8461f7b

    SHA256

    ef48cd9510f34a10d90545943ffbcd95be56eb398c7f4dd698b785539eea0680

    SHA512

    4a3db74ac03efea364a88030b044e1738df73f1d9109b8c4590004b9e1da3c4e4b6ef631a9429ac922b8df96b893b7ea82b6e660c1812ca67060809f5cfa1fa4

  • C:\Program Files (x86)\a6775138\jusched.exe

    Filesize

    189KB

    MD5

    71908b4260ed94ced3f7997a25cdc461

    SHA1

    fdd67c2043886f4d047e6efb7b6aea75c8461f7b

    SHA256

    ef48cd9510f34a10d90545943ffbcd95be56eb398c7f4dd698b785539eea0680

    SHA512

    4a3db74ac03efea364a88030b044e1738df73f1d9109b8c4590004b9e1da3c4e4b6ef631a9429ac922b8df96b893b7ea82b6e660c1812ca67060809f5cfa1fa4