Analysis

  • max time kernel
    143s
  • max time network
    148s
  • 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, 18:17

General

  • Target

    a3411500e67f35_JC.exe

  • Size

    85KB

  • MD5

    a3411500e67f35ac79b4e01335da1700

  • SHA1

    a961e0d7b960f8b63d5d8e5bb30ac97aa3ddb524

  • SHA256

    cd9cde9b750627f18cd128be1b2f5fe1e633ded578971e7a782dd02fe052883d

  • SHA512

    e7083128d7c7a026ed16b0450581550d07fb3c6faf5e4bfc3ca8b10b0db87fc8d3102d1a460602ca2a7592494ae9d28ed41804c31f39a4ff8e70a5e955e202df

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjix:zCsanOtEvwDpjr

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 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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3411500e67f35_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\a3411500e67f35_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1164
    • 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:2060

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    86KB

    MD5

    23992eebcbe5b2c8083c54e0b661a422

    SHA1

    f0b43c3d28136174f9711a0293cea9f1baabbb9f

    SHA256

    e586ef10848997398147c96209b673054d3afc4d3afe234302667f4b81076216

    SHA512

    425bb1f562ed3ef8c7bfe9a5c0853fc2f0dfe38d4005ae0e92dbccca51fc116002e139cdd4441c8733adf0b63b98215978506709c15399ad2607b1e6b37a6ec8

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

    Filesize

    86KB

    MD5

    23992eebcbe5b2c8083c54e0b661a422

    SHA1

    f0b43c3d28136174f9711a0293cea9f1baabbb9f

    SHA256

    e586ef10848997398147c96209b673054d3afc4d3afe234302667f4b81076216

    SHA512

    425bb1f562ed3ef8c7bfe9a5c0853fc2f0dfe38d4005ae0e92dbccca51fc116002e139cdd4441c8733adf0b63b98215978506709c15399ad2607b1e6b37a6ec8

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

    Filesize

    86KB

    MD5

    23992eebcbe5b2c8083c54e0b661a422

    SHA1

    f0b43c3d28136174f9711a0293cea9f1baabbb9f

    SHA256

    e586ef10848997398147c96209b673054d3afc4d3afe234302667f4b81076216

    SHA512

    425bb1f562ed3ef8c7bfe9a5c0853fc2f0dfe38d4005ae0e92dbccca51fc116002e139cdd4441c8733adf0b63b98215978506709c15399ad2607b1e6b37a6ec8

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1164-134-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1164-135-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1164-136-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/1164-151-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1164-133-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2060-150-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2060-153-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/2060-154-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/2060-182-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB