Analysis

  • max time kernel
    77s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-07-2023 18:27

General

  • Target

    a44b6a9bb8dadd_JC.exe

  • Size

    53KB

  • MD5

    a44b6a9bb8dadd3cb4a448a3ee00e2e4

  • SHA1

    e07e09892764b921780e893eec8c841d6cadabd4

  • SHA256

    301337a27d15f228cbeb9c4ee07cca1c663b90e615d637a5e17c56390a90c327

  • SHA512

    cc4859f4b27d7e9bdddedced4ce34b8065b3dddfc6dff52ed80b3a06d7ba4069bfc9dc9980b8b5efd1b2cddb22f35658f38e8e1b1b8f8153ee7a637a042c979b

  • SSDEEP

    768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7pBlOW:zj+soPSMOtEvwDpj4ktBlP

Score
7/10
upx

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a44b6a9bb8dadd_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\a44b6a9bb8dadd_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4912
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:4928

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    53KB

    MD5

    9c3791ffeaa72f28f5ea439e95dd7abc

    SHA1

    f4e696e8392bbbf5e589ad70c79623120ef9265d

    SHA256

    5a3e80277796e89c0b79fb4067b4b12a033ac3cd45c54fcd8ba4419417c9eaf7

    SHA512

    64b88f5b88fbff21ced42cc8243f75bac6d1fa4b291e2f05c828b3e4f4be164865a936b10407fdcf8e7c5ccf5caecdc8ea03c83239382c0bacbafafd3992b67c

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

    Filesize

    53KB

    MD5

    9c3791ffeaa72f28f5ea439e95dd7abc

    SHA1

    f4e696e8392bbbf5e589ad70c79623120ef9265d

    SHA256

    5a3e80277796e89c0b79fb4067b4b12a033ac3cd45c54fcd8ba4419417c9eaf7

    SHA512

    64b88f5b88fbff21ced42cc8243f75bac6d1fa4b291e2f05c828b3e4f4be164865a936b10407fdcf8e7c5ccf5caecdc8ea03c83239382c0bacbafafd3992b67c

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

    Filesize

    53KB

    MD5

    9c3791ffeaa72f28f5ea439e95dd7abc

    SHA1

    f4e696e8392bbbf5e589ad70c79623120ef9265d

    SHA256

    5a3e80277796e89c0b79fb4067b4b12a033ac3cd45c54fcd8ba4419417c9eaf7

    SHA512

    64b88f5b88fbff21ced42cc8243f75bac6d1fa4b291e2f05c828b3e4f4be164865a936b10407fdcf8e7c5ccf5caecdc8ea03c83239382c0bacbafafd3992b67c

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4912-133-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4912-134-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/4912-135-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/4912-136-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/4912-150-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4928-153-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4928-152-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4928-181-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB