Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2023, 21:14

General

  • Target

    $R6B2ZGV.exe

  • Size

    895KB

  • MD5

    7f32f76a211c294f6e280b5f6867f2b0

  • SHA1

    008da0b94b792b4d4810a000336a37651090e9ed

  • SHA256

    996fec4254ba09feade637d40971b6472912961128f6ad353ec4fe0405f0cc70

  • SHA512

    1ac208de202c91a038f468a0fba3f3b4f09fa92c4a1d21cca4eda21cf40fe99f245424e6f485327b232a23eaa444419efa96384c3b88f6b0106f81efdb7388c9

  • SSDEEP

    12288:Sk4lrraD+fm31WPSq3CgCDBPifM1TimdE/3OLjRyX/03xP46L9FI:Sk4lXPfm3gqzB6k1Ts/k2cxHL9F

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

167.114.189.33:2404

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-7ZDF66

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$R6B2ZGV.exe
    "C:\Users\Admin\AppData\Local\Temp\$R6B2ZGV.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2376
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\$R6B2ZGV.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:852
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XpBeYEmkGU.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2604
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XpBeYEmkGU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB693.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2668
    • C:\Users\Admin\AppData\Local\Temp\$R6B2ZGV.exe
      "C:\Users\Admin\AppData\Local\Temp\$R6B2ZGV.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2804

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\remcos\logs.dat

          Filesize

          144B

          MD5

          918d483bc33cb04d6caffac8c248854f

          SHA1

          32bfacfc5cfcd4017d79b6d7a8ef00b6ec03fb17

          SHA256

          41116ed7cf53acff05cb8b49e0488ea389a67fdcf221ba43373ec882e20e662c

          SHA512

          f827dfe8f1d667fce0dc395dcf7427ea43d47dab345bf4daefde6ff726c972fa84b50d2bf4e27416db3c5ccd5038e6d1ffc4aef7f095a821c980795549986d97

        • C:\Users\Admin\AppData\Local\Temp\tmpB693.tmp

          Filesize

          1KB

          MD5

          98a515d0dfa44ec3c7336e63de787876

          SHA1

          1452d2c7a5485ae3eeba5ec9bad40449e9772cd9

          SHA256

          9df81ff9dd0665ab763c0db923d50457eb4c55685c9db79409e5caf562776749

          SHA512

          873ea7032697a40f446e7b925e13f37818c641aa472c206161ecdc9119197895604d77c4be1655b79d68aaaf626316fb654441a3e86f8543c61ea130373cdfbe

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\YPGIG0916FW8QWL4SKSC.temp

          Filesize

          7KB

          MD5

          cea32a2624f703a64f9fc1417618fe21

          SHA1

          3b9fd3a070d079a5882f7f9151ff539924dcb741

          SHA256

          5ca0cfcc26bc81ee3a40190ea2844921a5d43376d2cd26573c54cca4c2658012

          SHA512

          40cab363acfbfb0b9493204c8a53a6aaf94bb5c413bc8941509866ff17e4f02ce667841b2c96f875119740931200dbf449ac49faf58388d842cb3815afcb1426

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

          Filesize

          7KB

          MD5

          cea32a2624f703a64f9fc1417618fe21

          SHA1

          3b9fd3a070d079a5882f7f9151ff539924dcb741

          SHA256

          5ca0cfcc26bc81ee3a40190ea2844921a5d43376d2cd26573c54cca4c2658012

          SHA512

          40cab363acfbfb0b9493204c8a53a6aaf94bb5c413bc8941509866ff17e4f02ce667841b2c96f875119740931200dbf449ac49faf58388d842cb3815afcb1426

        • memory/852-30-0x0000000002CB0000-0x0000000002CF0000-memory.dmp

          Filesize

          256KB

        • memory/852-54-0x000000006D4F0000-0x000000006DA9B000-memory.dmp

          Filesize

          5.7MB

        • memory/852-29-0x0000000002CB0000-0x0000000002CF0000-memory.dmp

          Filesize

          256KB

        • memory/852-25-0x000000006D4F0000-0x000000006DA9B000-memory.dmp

          Filesize

          5.7MB

        • memory/852-21-0x000000006D4F0000-0x000000006DA9B000-memory.dmp

          Filesize

          5.7MB

        • memory/2376-6-0x0000000000A10000-0x0000000000A1E000-memory.dmp

          Filesize

          56KB

        • memory/2376-3-0x0000000000410000-0x0000000000420000-memory.dmp

          Filesize

          64KB

        • memory/2376-48-0x00000000748A0000-0x0000000074F8E000-memory.dmp

          Filesize

          6.9MB

        • memory/2376-0-0x0000000001340000-0x0000000001424000-memory.dmp

          Filesize

          912KB

        • memory/2376-5-0x0000000004D90000-0x0000000004DD0000-memory.dmp

          Filesize

          256KB

        • memory/2376-4-0x00000000748A0000-0x0000000074F8E000-memory.dmp

          Filesize

          6.9MB

        • memory/2376-1-0x00000000748A0000-0x0000000074F8E000-memory.dmp

          Filesize

          6.9MB

        • memory/2376-7-0x0000000005860000-0x0000000005918000-memory.dmp

          Filesize

          736KB

        • memory/2376-2-0x0000000004D90000-0x0000000004DD0000-memory.dmp

          Filesize

          256KB

        • memory/2604-32-0x0000000002E40000-0x0000000002E80000-memory.dmp

          Filesize

          256KB

        • memory/2604-55-0x000000006D4F0000-0x000000006DA9B000-memory.dmp

          Filesize

          5.7MB

        • memory/2604-34-0x0000000002E40000-0x0000000002E80000-memory.dmp

          Filesize

          256KB

        • memory/2604-27-0x000000006D4F0000-0x000000006DA9B000-memory.dmp

          Filesize

          5.7MB

        • memory/2604-22-0x0000000002E40000-0x0000000002E80000-memory.dmp

          Filesize

          256KB

        • memory/2604-20-0x000000006D4F0000-0x000000006DA9B000-memory.dmp

          Filesize

          5.7MB

        • memory/2804-37-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-24-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-41-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-39-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-45-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-43-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2804-26-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-47-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-49-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-51-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-52-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-53-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-35-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-31-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-60-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-61-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-23-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-66-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-67-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-73-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-74-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-79-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB

        • memory/2804-80-0x0000000000400000-0x0000000000481000-memory.dmp

          Filesize

          516KB