Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    17-07-2023 18:14

General

  • Target

    a2af656494b3a9_JC.exe

  • Size

    90KB

  • MD5

    a2af656494b3a9ecedb05c96cd726d93

  • SHA1

    fe584d057ce2be9e63c82606489393812f5b26b1

  • SHA256

    2c63df5afb8086e6ee226ce7db8370e576343c93ce18a5741191ddc8e6e7c261

  • SHA512

    e876930c9818deef52220ed178f0070ccf6712aa2c5e4a25f63bbf8f8adfaf34cf2b8f9f22b28b7b5ee66b42a02dee192e6017894e8c5ac73389e9eb6355e736

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjzty:zCsanOtEvwDpjN

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 7 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a2af656494b3a9_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\a2af656494b3a9_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2604
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2668

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    90KB

    MD5

    2396564a5854441f61e76f163d24415d

    SHA1

    6734dd617008b67bb80734fb904534bf4a2a94ab

    SHA256

    75372bb59a9dce1b914fc10587cbf221c35149ccb44b6d8cd4a520dc4a5c9e3c

    SHA512

    8b22ac2ee7f73c5a82ba8e2d0ef9f090ad53b8dfaed9bc4846ddada3b4467b3118390348ff7fc85353e531533da9218bcbc17dcf2b8539fa7872143386d9a4f2

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

    Filesize

    90KB

    MD5

    2396564a5854441f61e76f163d24415d

    SHA1

    6734dd617008b67bb80734fb904534bf4a2a94ab

    SHA256

    75372bb59a9dce1b914fc10587cbf221c35149ccb44b6d8cd4a520dc4a5c9e3c

    SHA512

    8b22ac2ee7f73c5a82ba8e2d0ef9f090ad53b8dfaed9bc4846ddada3b4467b3118390348ff7fc85353e531533da9218bcbc17dcf2b8539fa7872143386d9a4f2

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

    Filesize

    90KB

    MD5

    2396564a5854441f61e76f163d24415d

    SHA1

    6734dd617008b67bb80734fb904534bf4a2a94ab

    SHA256

    75372bb59a9dce1b914fc10587cbf221c35149ccb44b6d8cd4a520dc4a5c9e3c

    SHA512

    8b22ac2ee7f73c5a82ba8e2d0ef9f090ad53b8dfaed9bc4846ddada3b4467b3118390348ff7fc85353e531533da9218bcbc17dcf2b8539fa7872143386d9a4f2

  • memory/2604-54-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2604-55-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2604-57-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2604-56-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/2604-69-0x00000000026C0000-0x00000000026D0000-memory.dmp

    Filesize

    64KB

  • memory/2604-68-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2668-71-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2668-73-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/2668-80-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB