Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-12-2024 14:43

General

  • Target

    090bd25f8a7a798f148508ae388e94d6e7a3cae7b0f2b10757010e39289aa6f5.dll

  • Size

    45.1MB

  • MD5

    fbbd10401ce1b31494d8c9f23d6a8664

  • SHA1

    47666e86b636421db480d93851ee5139c5c0a7dc

  • SHA256

    090bd25f8a7a798f148508ae388e94d6e7a3cae7b0f2b10757010e39289aa6f5

  • SHA512

    2c95831ac6bca0803960732601dc4257cfc48782d4ad8af2295228160f522ee89ce4ff190970e3e5eddb5a1ca828bf539d6565ee6a94e5ed0d313bb021f5dfcf

  • SSDEEP

    786432:kUP7GCGO7t0Srkx/tC0SzIdSwh/WxbpNHQD3trzRpwzr:kUP7GCG6iSrkx1hSzYsHQD3t/RiP

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

pattreon.duckdns.org:7035

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-US2YEL

  • 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.

  • Remcos family
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\090bd25f8a7a798f148508ae388e94d6e7a3cae7b0f2b10757010e39289aa6f5.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\090bd25f8a7a798f148508ae388e94d6e7a3cae7b0f2b10757010e39289aa6f5.dll
      2⤵
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2520
      • C:\Windows\SysWOW64\regsvr32.exe
        "C:\Windows\SysWOW64\regsvr32.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2076
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*LoopholeTu" /t REG_SZ /d "rundll32.exe C:\Users\Admin\AppData\Roaming\TorretIff.dll",EntryPoint /f & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2924
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*LoopholeTu" /t REG_SZ /d "rundll32.exe C:\Users\Admin\AppData\Roaming\TorretIff.dll",EntryPoint /f
          4⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:2836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2076-37-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-64-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-13-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-15-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-12-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-7-0x0000000000130000-0x0000000000131000-memory.dmp

    Filesize

    4KB

  • memory/2076-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2076-68-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-67-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-16-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-3-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-18-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-35-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-65-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-36-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-20-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-21-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-22-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-23-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-24-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-25-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-26-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-27-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-28-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-29-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-63-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-31-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-32-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-33-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-34-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-66-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-9-0x0000000000130000-0x0000000000131000-memory.dmp

    Filesize

    4KB

  • memory/2076-17-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-38-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-39-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-40-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-41-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-42-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-43-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-44-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-45-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-46-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-47-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-48-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-49-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-50-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-51-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-52-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-53-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-54-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-55-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-56-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-57-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-58-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-59-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-60-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-61-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2076-62-0x00000000000A0000-0x0000000000122000-memory.dmp

    Filesize

    520KB

  • memory/2520-30-0x00000000102E6000-0x0000000010300000-memory.dmp

    Filesize

    104KB

  • memory/2520-19-0x0000000012D6E000-0x0000000012D75000-memory.dmp

    Filesize

    28KB

  • memory/2520-11-0x0000000010000000-0x0000000012DD4000-memory.dmp

    Filesize

    45.8MB

  • memory/2520-2-0x0000000010000000-0x0000000012DD4000-memory.dmp

    Filesize

    45.8MB

  • memory/2520-0-0x0000000010000000-0x0000000012DD4000-memory.dmp

    Filesize

    45.8MB

  • memory/2520-1-0x00000000102E6000-0x0000000010300000-memory.dmp

    Filesize

    104KB