Analysis

  • max time kernel
    601s
  • max time network
    604s
  • platform
    windows7_x64
  • resource
    win7-20240319-en
  • resource tags

    arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
  • submitted
    11-04-2024 00:34

General

  • Target

    Wrights 2023 1040 W2s TaxDocumentPDF.exe

  • Size

    31KB

  • MD5

    3e71ed46603b02a94b921411a19b7a5c

  • SHA1

    b1374ef6717635d07015d8acb700cf95b2a66b12

  • SHA256

    1131f33552a12921f6f4d7d9e503feae4b12c367d5377e226acf270f6b58ca6e

  • SHA512

    28555a8bf20e4f8d42b21685c06e429bc5261f75e9fb65b970a322907d7da4a4ee7d367f4637ea4abb6ef32fae8e71a9d92b4f253a201e94548d68281edccbaf

  • SSDEEP

    384:e8Kj/M8yEryzqEt7a9Oey+IFdP64VYaEwDtiBgxoxlnLr2STcEICxXBhgBx4eMDa:eDD1r+VWOV+csoHViBBn+EFIqeMDGvaS

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

clepdhunt.duckdns.org:4047

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-S0GVOJ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Wrights 2023 1040 W2s TaxDocumentPDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Wrights 2023 1040 W2s TaxDocumentPDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2056
    • C:\Users\Admin\AppData\Local\Temp\Wrights 2023 1040 W2s TaxDocumentPDF.exe
      "C:\Users\Admin\AppData\Local\Temp\Wrights 2023 1040 W2s TaxDocumentPDF.exe"
      2⤵
        PID:2712

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2056-0-0x0000000010000000-0x0000000012DB3000-memory.dmp
      Filesize

      45.7MB

    • memory/2056-1-0x0000000010000000-0x0000000012DB3000-memory.dmp
      Filesize

      45.7MB

    • memory/2056-2-0x0000000010000000-0x0000000012DB3000-memory.dmp
      Filesize

      45.7MB

    • memory/2056-9-0x0000000010000000-0x0000000012DB3000-memory.dmp
      Filesize

      45.7MB

    • memory/2712-3-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-5-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
      Filesize

      4KB

    • memory/2712-7-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-10-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-11-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-12-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-13-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-14-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-15-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-16-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-17-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-18-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-19-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-20-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-21-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-22-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-23-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-24-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-25-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-26-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-27-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-28-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-29-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-30-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-31-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-32-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-33-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-34-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-35-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-36-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-37-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-38-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-39-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-40-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-41-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-42-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-43-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-44-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-45-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-46-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-47-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-48-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-49-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-50-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-51-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-52-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-53-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-54-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-55-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-56-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-57-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-58-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-59-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-60-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-61-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-62-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-63-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-64-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB

    • memory/2712-65-0x00000000001C0000-0x0000000000242000-memory.dmp
      Filesize

      520KB