Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    14-11-2024 06:50

General

  • Target

    Customers_Technical_2D_Drawing-IMG.bat.exe

  • Size

    1004KB

  • MD5

    b55d24e6b8e053c08bdd57534af83734

  • SHA1

    13473f286428aa39869a9580c7f3fbb0fde8d9ed

  • SHA256

    27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b

  • SHA512

    1957bdfa97e1bd9309040f64d22c7348df0ca692f79a3136cb0203e19e5e4a67c5d8588e758f3e43a0652158a22042bd694635f0baaaa31c8d1c826432da8f22

  • SSDEEP

    24576:99CJVyR2dzExjVlDjcFXcq5meyUBNrllwKkwa9:9UO2dCzmeeT/sS

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

87.120.120.25:5940

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-13MD3U

  • 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
  • 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 1 IoCs

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

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2900
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QglnNavO.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2712
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QglnNavO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD79A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2896
    • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
      "C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe"
      2⤵
        PID:2848
      • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
        "C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2680
        • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
          C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe /stext "C:\Users\Admin\AppData\Local\Temp\glebimhvkfypb"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:3004
        • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
          C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe /stext "C:\Users\Admin\AppData\Local\Temp\rgjtjespgnqulcab"
          3⤵
            PID:2212
          • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
            C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe /stext "C:\Users\Admin\AppData\Local\Temp\rgjtjespgnqulcab"
            3⤵
              PID:2344
            • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
              C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe /stext "C:\Users\Admin\AppData\Local\Temp\rgjtjespgnqulcab"
              3⤵
              • Accesses Microsoft Outlook accounts
              • System Location Discovery: System Language Discovery
              PID:1404
            • C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe
              C:\Users\Admin\AppData\Local\Temp\Customers_Technical_2D_Drawing-IMG.bat.exe /stext "C:\Users\Admin\AppData\Local\Temp\tioejxdruvjznqonwclr"
              3⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:3060

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\remcos\logs.dat

          Filesize

          144B

          MD5

          f6b4e258fbaa1fa9c660e19677b437ba

          SHA1

          76de526249af37e6bf67660c9d5080674d212c5d

          SHA256

          dbab2e521ca1791065897069e7303946a425abe3c1b2bb856b58a203166a0a8e

          SHA512

          09712175ef23b27803d7d73b1c5eae4134e123cb9babd4b51c743ebc252e9f8a8eb33b5e3ab0dd19a30893d8c5282feb720e9550e079f76ffe99cb2327a98bfd

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

          Filesize

          2B

          MD5

          f3b25701fe362ec84616a93a45ce9998

          SHA1

          d62636d8caec13f04e28442a0a6fa1afeb024bbb

          SHA256

          b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

          SHA512

          98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

        • C:\Users\Admin\AppData\Local\Temp\tmpD79A.tmp

          Filesize

          1KB

          MD5

          96da29993c55bcaf0e2a00beef716a4c

          SHA1

          a27ea85c93b3593b9fe60893d3212a5253c7c986

          SHA256

          82117d4806e1c829a9c56c4f905be17f040cbb477d6e1dfb6f70dfdd06f236ef

          SHA512

          40c3cfbd2784550f0bfb213bdf5ccf47a9edb20b93ab2339b02c5fa43776c5ab7ee0ac77d91bc84aa01e0f712b566baf913f6b8856f6cecafbd53502cebcfc5f

        • memory/1404-47-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/1404-49-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/1404-46-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/2680-37-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-64-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/2680-14-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2680-16-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-22-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-20-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-18-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-24-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-33-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-32-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-29-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-27-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-28-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-35-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-34-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-93-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-36-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-86-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-40-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-85-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-77-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-70-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-69-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-65-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2680-63-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/2680-60-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/2900-4-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

          Filesize

          4KB

        • memory/2900-0-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

          Filesize

          4KB

        • memory/2900-2-0x0000000074B20000-0x000000007520E000-memory.dmp

          Filesize

          6.9MB

        • memory/2900-38-0x0000000074B20000-0x000000007520E000-memory.dmp

          Filesize

          6.9MB

        • memory/2900-6-0x0000000004F00000-0x0000000004FC2000-memory.dmp

          Filesize

          776KB

        • memory/2900-3-0x0000000000640000-0x0000000000652000-memory.dmp

          Filesize

          72KB

        • memory/2900-5-0x0000000074B20000-0x000000007520E000-memory.dmp

          Filesize

          6.9MB

        • memory/2900-1-0x0000000000150000-0x0000000000252000-memory.dmp

          Filesize

          1.0MB

        • memory/3004-44-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/3004-48-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/3004-43-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/3060-52-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/3060-53-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/3060-51-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB