Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16/09/2024, 05:36

General

  • Target

    TNT INVOICE 9.16.2024.exe

  • Size

    874KB

  • MD5

    fa85476ee938c50ec297a18b6d84ad2d

  • SHA1

    24687b69c21fdcc298fbc977548fcd34f1e7d8ee

  • SHA256

    4dd5c06062753a3522e3a1bb4a10d29639b467599913a27d77af2866dd095a32

  • SHA512

    7a486263b9de67d94b7d90c2e60c285cceaa8bfa0fb825b6aee6eafe753178316bf051b877ee797509becf59617246cea5cbcba2804fbb7f1252248508121758

  • SSDEEP

    24576:OEqKo59aqP71pME/qVt4G0PWxxtO6rO69qCVJFOxGoF:OE38bPQRVatPAA6rO6Fb

Malware Config

Extracted

Family

remcos

Botnet

IRN

C2

irnserv1.ddns.net:4424

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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-CA8761

  • 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.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Detected Nirsoft tools 3 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 61 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TNT INVOICE 9.16.2024.exe
    "C:\Users\Admin\AppData\Local\Temp\TNT INVOICE 9.16.2024.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1984
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fiCAFOzLq.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2708
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fiCAFOzLq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD346.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2188
    • C:\Users\Admin\AppData\Local\Temp\TNT INVOICE 9.16.2024.exe
      "C:\Users\Admin\AppData\Local\Temp\TNT INVOICE 9.16.2024.exe"
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2760
      • C:\ProgramData\Remcos\remcos.exe
        "C:\ProgramData\Remcos\remcos.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2868
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fiCAFOzLq.exe"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1840
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fiCAFOzLq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4B2.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:536
        • C:\ProgramData\Remcos\remcos.exe
          "C:\ProgramData\Remcos\remcos.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2820
          • C:\ProgramData\Remcos\remcos.exe
            C:\ProgramData\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\mnerdurkbwcqywrpzag"
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:840
          • C:\ProgramData\Remcos\remcos.exe
            C:\ProgramData\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\xpkbemcmpeudicftqktpsq"
            5⤵
            • Executes dropped EXE
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:3004
          • C:\ProgramData\Remcos\remcos.exe
            C:\ProgramData\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\hkxuffngdmmikqcxzvgqvdzna"
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:2584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Remcos\logs.dat

    Filesize

    144B

    MD5

    2b19a7d75e4a8d62e635fd747474406b

    SHA1

    a897d9401ef3b98dba3489550cda128122328348

    SHA256

    0c377d6fb309d55d3d54da1ee2566779039b8618e5bdfc693d777bb5be6d7a8e

    SHA512

    beb868e068ea48544c61743a8099a9b82d051c8616ccdd55ee6cc35902c8842b05fbd41a7f83977d74cb6a2fd1f63ac41f1592c07c6e0d57717d11293b30c465

  • C:\ProgramData\Remcos\remcos.exe

    Filesize

    874KB

    MD5

    fa85476ee938c50ec297a18b6d84ad2d

    SHA1

    24687b69c21fdcc298fbc977548fcd34f1e7d8ee

    SHA256

    4dd5c06062753a3522e3a1bb4a10d29639b467599913a27d77af2866dd095a32

    SHA512

    7a486263b9de67d94b7d90c2e60c285cceaa8bfa0fb825b6aee6eafe753178316bf051b877ee797509becf59617246cea5cbcba2804fbb7f1252248508121758

  • C:\Users\Admin\AppData\Local\Temp\mnerdurkbwcqywrpzag

    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • C:\Users\Admin\AppData\Local\Temp\tmpD346.tmp

    Filesize

    1KB

    MD5

    27ec5a2b28c8273dd6241d559ca55a6a

    SHA1

    e232e313353490f7e21917e9f60f2db593e6384a

    SHA256

    1535ecc592b6d03fb0d411660330e35336193c521607b0dcb37245b1459aea0e

    SHA512

    90224fd5920d8ddb7d7550ac856743d72c4b84d6364d4127a98137d6e4c0b017caaaafbc41a5cfa6b6aeda51cb7eb67c87a760c1b47b6aaf91c6547567fadab5

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

    Filesize

    7KB

    MD5

    3eaf839c850cbcc34c1db2e3398ad435

    SHA1

    7513eab26a44628c6844fb36c9044b2af58c68ff

    SHA256

    e0bc86354a1c9a793929cc6bf8d6882bf6023ed82e4f3dea68ff361471ae595b

    SHA512

    6f62a33e921ae1a0d424ac8b1689591e16f73a51dd61c015c0b9526678f85fcf4325d2bee4e48957f8c8682268bc59ecfc1f25725cc6fd802dfd5106b008e5e2

  • memory/840-91-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/840-97-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/840-103-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1984-5-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

    Filesize

    4KB

  • memory/1984-7-0x0000000005650000-0x0000000005710000-memory.dmp

    Filesize

    768KB

  • memory/1984-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

    Filesize

    4KB

  • memory/1984-34-0x0000000074B80000-0x000000007526E000-memory.dmp

    Filesize

    6.9MB

  • memory/1984-6-0x0000000074B80000-0x000000007526E000-memory.dmp

    Filesize

    6.9MB

  • memory/1984-4-0x0000000000290000-0x000000000029E000-memory.dmp

    Filesize

    56KB

  • memory/1984-3-0x0000000005190000-0x0000000005264000-memory.dmp

    Filesize

    848KB

  • memory/1984-2-0x0000000074B80000-0x000000007526E000-memory.dmp

    Filesize

    6.9MB

  • memory/1984-1-0x0000000000970000-0x0000000000A50000-memory.dmp

    Filesize

    896KB

  • memory/2584-104-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2584-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2584-102-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2584-100-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2760-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2760-17-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2760-13-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2760-15-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2760-19-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2760-31-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2760-30-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2760-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2760-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2760-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2760-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2820-79-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2820-80-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2820-86-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2820-85-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2820-87-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2820-89-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2820-68-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2820-83-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2820-81-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2820-84-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2820-64-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2820-78-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2820-73-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2820-67-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2868-45-0x0000000001090000-0x0000000001170000-memory.dmp

    Filesize

    896KB

  • memory/3004-96-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3004-98-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3004-94-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB