Analysis

  • max time kernel
    128s
  • max time network
    133s
  • 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, 13:06

General

  • Target

    8645529f1e4c2e_JC.exe

  • Size

    76KB

  • MD5

    8645529f1e4c2e8b84e157d7f502ce1c

  • SHA1

    82ff93cf5a68dd3c1296cea96a3b1779b64c2450

  • SHA256

    d8d3bdcb0bffc24f66cf9f4dcab264694a00b0107e8ccb2185a4f70b5caefd37

  • SHA512

    264165be13750c1d8f73ba48c2d805b0b0cf784e5be74d0a88674ce129747cd77792566effc56372b684d9abb90640c9a6c570e2d393b0b67282246a09fc5128

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJNpsAnJYqdIRhpH8S4:ZVxkGOtEvwDpjcN9

Score
7/10

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
  • 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\8645529f1e4c2e_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\8645529f1e4c2e_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4172
    • 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:4524

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    76KB

    MD5

    b36155dd928a7ea220b4467d1c1a7d4a

    SHA1

    e90d3990388164760933f6f1afdfc3e39e07edea

    SHA256

    ca0f1c79cd3f51b0b882bcd7c4f8151e8a9425ce8412cae9c4414d49beeacc2a

    SHA512

    775b6bf8f96eea6dc9e2850e37b0424bdeb36e9df27f035011af09756bd5ef68360841fff2dcfbc391b9a4f9276e79fb7ba3a57c2d0493ec942e1a898d74aadc

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

    Filesize

    76KB

    MD5

    b36155dd928a7ea220b4467d1c1a7d4a

    SHA1

    e90d3990388164760933f6f1afdfc3e39e07edea

    SHA256

    ca0f1c79cd3f51b0b882bcd7c4f8151e8a9425ce8412cae9c4414d49beeacc2a

    SHA512

    775b6bf8f96eea6dc9e2850e37b0424bdeb36e9df27f035011af09756bd5ef68360841fff2dcfbc391b9a4f9276e79fb7ba3a57c2d0493ec942e1a898d74aadc

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

    Filesize

    76KB

    MD5

    b36155dd928a7ea220b4467d1c1a7d4a

    SHA1

    e90d3990388164760933f6f1afdfc3e39e07edea

    SHA256

    ca0f1c79cd3f51b0b882bcd7c4f8151e8a9425ce8412cae9c4414d49beeacc2a

    SHA512

    775b6bf8f96eea6dc9e2850e37b0424bdeb36e9df27f035011af09756bd5ef68360841fff2dcfbc391b9a4f9276e79fb7ba3a57c2d0493ec942e1a898d74aadc

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4172-133-0x00000000004F0000-0x00000000004F3000-memory.dmp

    Filesize

    12KB

  • memory/4172-134-0x0000000002320000-0x0000000002326000-memory.dmp

    Filesize

    24KB

  • memory/4172-135-0x0000000002320000-0x0000000002326000-memory.dmp

    Filesize

    24KB

  • memory/4172-136-0x0000000002180000-0x0000000002186000-memory.dmp

    Filesize

    24KB

  • memory/4172-151-0x00000000004F0000-0x00000000004F3000-memory.dmp

    Filesize

    12KB

  • memory/4524-150-0x0000000000460000-0x00000000004A0000-memory.dmp

    Filesize

    256KB

  • memory/4524-153-0x0000000002000000-0x0000000002006000-memory.dmp

    Filesize

    24KB

  • memory/4524-154-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB