Analysis

  • max time kernel
    139s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-07-2023 16:44

General

  • Target

    77df53b75a9b6b_JC.exe

  • Size

    43KB

  • MD5

    77df53b75a9b6b203f5d79db771cbadb

  • SHA1

    6ff5d405eebc07a26cc545bd0e16f63939fb2a33

  • SHA256

    530b1610c4181f28238d40550454acf53c656b29022cc4b9bbd5c0c514d26b6f

  • SHA512

    5c287e1bb1d3933f9440bf83bb61fa28e770c2ac94b21adeddd3abe548af55c4da945854d2c68c65423d660add62115b57ca0babb7f778fee70baab7b898e1fe

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8iB23i:vj+jsMQMOtEvwDpj5HczV

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\77df53b75a9b6b_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\77df53b75a9b6b_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3024
    • 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:4112

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    43KB

    MD5

    e1800e8ba5c0aa67f8cf0af7e811efc0

    SHA1

    ab7fa15d84e76a58d053eeccc00a29e276d7ebd4

    SHA256

    f8f295c051aec6f267669ab9016a05a5dd12ed8dd160110413643b23c5cf4b61

    SHA512

    928ea15d6ca7e3a43643e65363679c0caa5d246724f5434f32b4f06ef2a54679ce1dfd4ff354d1bed7f53fdc287d34dc8c600ededaf88ffb89a7c90da726bcb7

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

    Filesize

    43KB

    MD5

    e1800e8ba5c0aa67f8cf0af7e811efc0

    SHA1

    ab7fa15d84e76a58d053eeccc00a29e276d7ebd4

    SHA256

    f8f295c051aec6f267669ab9016a05a5dd12ed8dd160110413643b23c5cf4b61

    SHA512

    928ea15d6ca7e3a43643e65363679c0caa5d246724f5434f32b4f06ef2a54679ce1dfd4ff354d1bed7f53fdc287d34dc8c600ededaf88ffb89a7c90da726bcb7

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

    Filesize

    43KB

    MD5

    e1800e8ba5c0aa67f8cf0af7e811efc0

    SHA1

    ab7fa15d84e76a58d053eeccc00a29e276d7ebd4

    SHA256

    f8f295c051aec6f267669ab9016a05a5dd12ed8dd160110413643b23c5cf4b61

    SHA512

    928ea15d6ca7e3a43643e65363679c0caa5d246724f5434f32b4f06ef2a54679ce1dfd4ff354d1bed7f53fdc287d34dc8c600ededaf88ffb89a7c90da726bcb7

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3024-133-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3024-134-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3024-135-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4112-150-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4112-151-0x0000000000870000-0x0000000000876000-memory.dmp

    Filesize

    24KB