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Analysis

  • max time kernel
    157s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/03/2024, 15:10

General

  • Target

    b500525ec82203429144f30eadc3d602.exe

  • Size

    108KB

  • MD5

    b500525ec82203429144f30eadc3d602

  • SHA1

    b693d7d15674647a7ac8ab4abd41f2ffe84b75e5

  • SHA256

    e43a687ad1d6dd93157260935d840429b4b650db61bfc8946bf7a0f10a882d4b

  • SHA512

    cc5e6c9d152718e852e1eb3e9f2f6c71a45abd16cde063b2c7455b61eb26c4aae5ae8fbe8362a2fae3636624a1575b2b80fdea11bf71ff391755acfaeeb82e9d

  • SSDEEP

    3072:h9fpaVgrXWJuH7RgwiGkfM1+rS3vK0Ya71r:PpQgrmJG7Rg4/+rS3SPm

Score
10/10

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b500525ec82203429144f30eadc3d602.exe
    "C:\Users\Admin\AppData\Local\Temp\b500525ec82203429144f30eadc3d602.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Users\Admin\AppData\Local\Temp\b500525ec82203429144f30eadc3d602.exe
      "C:\Users\Admin\AppData\Local\Temp\b500525ec82203429144f30eadc3d602.exe"
      2⤵
      • Modifies firewall policy service
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2900
      • C:\Users\Admin\P-7-78-8964-9648-3874\wincrs.exe
        "C:\Users\Admin\P-7-78-8964-9648-3874\wincrs.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4960
        • C:\Users\Admin\P-7-78-8964-9648-3874\wincrs.exe
          "C:\Users\Admin\P-7-78-8964-9648-3874\wincrs.exe"
          4⤵
          • Executes dropped EXE
          PID:392

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\P-7-78-8964-9648-3874\wincrs.exe

    Filesize

    108KB

    MD5

    b500525ec82203429144f30eadc3d602

    SHA1

    b693d7d15674647a7ac8ab4abd41f2ffe84b75e5

    SHA256

    e43a687ad1d6dd93157260935d840429b4b650db61bfc8946bf7a0f10a882d4b

    SHA512

    cc5e6c9d152718e852e1eb3e9f2f6c71a45abd16cde063b2c7455b61eb26c4aae5ae8fbe8362a2fae3636624a1575b2b80fdea11bf71ff391755acfaeeb82e9d

  • memory/392-77-0x0000000000400000-0x000000000040D000-memory.dmp

    Filesize

    52KB

  • memory/392-76-0x0000000000400000-0x000000000040D000-memory.dmp

    Filesize

    52KB

  • memory/1516-1-0x0000000010000000-0x0000000010008000-memory.dmp

    Filesize

    32KB

  • memory/1516-2-0x0000000010000000-0x0000000010008000-memory.dmp

    Filesize

    32KB

  • memory/1516-5-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/1516-0-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2900-7-0x0000000000400000-0x000000000040D000-memory.dmp

    Filesize

    52KB

  • memory/2900-6-0x0000000000400000-0x000000000040D000-memory.dmp

    Filesize

    52KB

  • memory/2900-3-0x0000000000400000-0x000000000040D000-memory.dmp

    Filesize

    52KB

  • memory/4960-70-0x0000000010000000-0x0000000010008000-memory.dmp

    Filesize

    32KB

  • memory/4960-75-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/4960-71-0x0000000010000000-0x0000000010008000-memory.dmp

    Filesize

    32KB