Analysis

  • max time kernel
    149s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    29-12-2024 09:39

General

  • Target

    New Order #86-55113,pdf.exe

  • Size

    390KB

  • MD5

    acbee350b83dd21753787b9b1588e0e0

  • SHA1

    7f3c2ddc8ee02369273d0e4cce57ee8608d761a5

  • SHA256

    b01e1958972ec443b2761f85f6aec66acfb99d239d4b402d5a345272c72738e7

  • SHA512

    b7e6cd8e79306af8fdc2bf759be58525ec82ec1fa96b6dca66a6c563ba56ca6a28199b3cbc643abb63d4cfd2416633d4ffb4eb7ea924fe42bd366a90a1ce631a

  • SSDEEP

    6144:A8LxB60+uhQMjtesLf0s7BFy/eP5Qky1NtbS/R9asZa2YL9dpl:t+uhQMjtebozOXHSDasZar1l

Malware Config

Extracted

Family

remcos

Version

2.7.2 Pro

Botnet

jimbo

C2

wealthgod456.ddns.net:4479

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-6CWFR4

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    wikipedia;solitaire;

Signatures

  • Remcos

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

  • Remcos family
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New Order #86-55113,pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\New Order #86-55113,pdf.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2140
    • C:\Users\Admin\AppData\Local\Temp\New Order #86-55113,pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\New Order #86-55113,pdf.exe"
      2⤵
        PID:2064

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\nsyB1C3.tmp\ydejjbwlzb.dll

      Filesize

      11KB

      MD5

      4aaa0bb30fa44bab0f47a1e9716885ae

      SHA1

      1417c687522222a7229c38fd7a9ce3aab3fb56f4

      SHA256

      83f56b8aacf3b7c6f319457eff4dffdff68256abb3e6d1f0e50263800deea83b

      SHA512

      711679b85b2d3fa4648ed50ab8feed372a1fbca278f12fb1f42d7d2c9cc1e3a6d7106e6d81aaa040cf277775290cc0ef8f540f2e8ec5d1b6d0898651cbf7d9b8

    • memory/2064-18-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-26-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-11-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-12-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-13-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-14-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-15-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-19-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-28-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-9-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-16-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-20-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-21-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-22-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-23-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-24-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-25-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-17-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2064-27-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/2140-8-0x0000000074933000-0x0000000074935000-memory.dmp

      Filesize

      8KB