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Analysis

  • max time kernel
    146s
  • max time network
    152s
  • 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, 18:06

General

  • Target

    a1c4f47574f17c_JC.exe

  • Size

    79KB

  • MD5

    a1c4f47574f17cccb1f996051000b8eb

  • SHA1

    3ddebe6844565c047042ba2e5123226e68046d7a

  • SHA256

    a5b12b05743152d34f9c008386e93b2496d3537f8c1c4aaca403ee09cf08c526

  • SHA512

    35479a2eecff366215dacbc30012c989a4467f637bde31cb3b72af5c29725c28f65648d220fae3f7bba02d06535820d44769b96d236875d6d06d4cbfe992f56f

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalDSnUb:1nK6a+qdOOtEvwDpjQ

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\a1c4f47574f17c_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\a1c4f47574f17c_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:4724

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    79KB

    MD5

    480d1349b201f976b37604dabd3babbc

    SHA1

    3c91f3ac66fc8d3b647d1985b1aace1935e7ceaf

    SHA256

    136709486e68822d0c5ba3d9f7dd96b75a38e7f43f1711431785cc7074c6e095

    SHA512

    361c993748b4a4aa4e9f5585e6f273d191b6fc37b2495f6d246c0431323775717cf018afbe0cbe090ec1410b0414e0865d9a4d749fba866ff5d8af9c7d2e3a6a

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

    Filesize

    79KB

    MD5

    480d1349b201f976b37604dabd3babbc

    SHA1

    3c91f3ac66fc8d3b647d1985b1aace1935e7ceaf

    SHA256

    136709486e68822d0c5ba3d9f7dd96b75a38e7f43f1711431785cc7074c6e095

    SHA512

    361c993748b4a4aa4e9f5585e6f273d191b6fc37b2495f6d246c0431323775717cf018afbe0cbe090ec1410b0414e0865d9a4d749fba866ff5d8af9c7d2e3a6a

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

    Filesize

    79KB

    MD5

    480d1349b201f976b37604dabd3babbc

    SHA1

    3c91f3ac66fc8d3b647d1985b1aace1935e7ceaf

    SHA256

    136709486e68822d0c5ba3d9f7dd96b75a38e7f43f1711431785cc7074c6e095

    SHA512

    361c993748b4a4aa4e9f5585e6f273d191b6fc37b2495f6d246c0431323775717cf018afbe0cbe090ec1410b0414e0865d9a4d749fba866ff5d8af9c7d2e3a6a

  • memory/1628-133-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/1628-134-0x00000000020E0000-0x00000000020E6000-memory.dmp

    Filesize

    24KB

  • memory/1628-135-0x00000000020E0000-0x00000000020E6000-memory.dmp

    Filesize

    24KB

  • memory/1628-136-0x0000000002110000-0x0000000002116000-memory.dmp

    Filesize

    24KB

  • memory/1628-151-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/4724-153-0x0000000002050000-0x0000000002056000-memory.dmp

    Filesize

    24KB

  • memory/4724-152-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/4724-159-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB