Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-08-2024 13:56

General

  • Target

    1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe

  • Size

    927KB

  • MD5

    339dcd1a52b9095623e72c678f20ed01

  • SHA1

    a2bd542dcddefc2ece12e47b380bc343ead31604

  • SHA256

    1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60

  • SHA512

    06b4ab19a5cd8957d879ed141e9d9ad5a0c4898d2bb460f4796d2d04014a67a10fe00bc6243a8936c8ec1b9be7d6cf4ce1a8a6c278067e6ea86ed5a2d40150a7

  • SSDEEP

    24576:JBKlj3XZEwjwxSonfaM00VMNSfQ/woYhkToooZ:2ljHZncct7IoY9bZ

Malware Config

Extracted

Family

remcos

Botnet

BCV

C2

tvq3101.sytes.net:1974

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-9PFUGS

  • 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 1 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • 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 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe
    "C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4764
    • 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\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:812
    • C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe
      "C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe"
      2⤵
        PID:1848
      • C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe
        "C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe"
        2⤵
          PID:1176
        • C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe
          "C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe"
          2⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:5000
          • C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe
            C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe /stext "C:\Users\Admin\AppData\Local\Temp\hxfvpmi"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:4360
          • C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe
            C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe /stext "C:\Users\Admin\AppData\Local\Temp\rrsnqftzzqj"
            3⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:4312
          • C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe
            C:\Users\Admin\AppData\Local\Temp\1414f1e42aa7b329d33ddbf9c64024eb822b1f61780bede84aa260724bd36b60.exe /stext "C:\Users\Admin\AppData\Local\Temp\btxyqxesnybhbx"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3156

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\remcos\logs.dat

        Filesize

        318B

        MD5

        15b54d6a1c57018e5663a570e18ba0e7

        SHA1

        ab43ae3bc92926333faa14c847d3399f1a4dcfe8

        SHA256

        e32b9039fcf56cb3342656a59fc707d1916682d6fff3d3afd720a6240d055703

        SHA512

        6dae2d50b4825d3b2beb62ae44061588e83fec36503548711f6e4a27082a64093610443aa1d4a98f0550af45fae88a02a8bf7dd81b00a4375e8b3fa11e78f6b0

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dek5zaz0.ez1.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

        Filesize

        4KB

        MD5

        c7ac5a21cac5bd5580a6e28112212613

        SHA1

        0a256177c387053fec680e599bcb63729a16c161

        SHA256

        89e0e7dc8ad418f8613610b71d0c140247e26a5f9a453ee255b1467fb80f15ff

        SHA512

        753675a75b643132e50175d67589a3952cb5154a7e51c11883b2e28bf4fe406afbaed88e61575cc114156e41ed5c587b0f76845e6d20ddf922e775bfff3f0b43

      • memory/812-56-0x0000000007410000-0x0000000007A8A000-memory.dmp

        Filesize

        6.5MB

      • memory/812-39-0x00000000055D0000-0x0000000005924000-memory.dmp

        Filesize

        3.3MB

      • memory/812-60-0x0000000006FD0000-0x0000000006FE1000-memory.dmp

        Filesize

        68KB

      • memory/812-44-0x00000000705B0000-0x00000000705FC000-memory.dmp

        Filesize

        304KB

      • memory/812-57-0x0000000006DD0000-0x0000000006DEA000-memory.dmp

        Filesize

        104KB

      • memory/812-58-0x0000000006E40000-0x0000000006E4A000-memory.dmp

        Filesize

        40KB

      • memory/812-55-0x0000000006CA0000-0x0000000006D43000-memory.dmp

        Filesize

        652KB

      • memory/812-54-0x00000000060B0000-0x00000000060CE000-memory.dmp

        Filesize

        120KB

      • memory/812-43-0x0000000006070000-0x00000000060A2000-memory.dmp

        Filesize

        200KB

      • memory/812-61-0x0000000007000000-0x000000000700E000-memory.dmp

        Filesize

        56KB

      • memory/812-41-0x0000000005AD0000-0x0000000005B1C000-memory.dmp

        Filesize

        304KB

      • memory/812-40-0x0000000005AA0000-0x0000000005ABE000-memory.dmp

        Filesize

        120KB

      • memory/812-59-0x0000000007050000-0x00000000070E6000-memory.dmp

        Filesize

        600KB

      • memory/812-17-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

        Filesize

        4KB

      • memory/812-18-0x0000000002130000-0x0000000002166000-memory.dmp

        Filesize

        216KB

      • memory/812-20-0x0000000074AC0000-0x0000000075270000-memory.dmp

        Filesize

        7.7MB

      • memory/812-19-0x0000000004BD0000-0x00000000051F8000-memory.dmp

        Filesize

        6.2MB

      • memory/812-21-0x0000000074AC0000-0x0000000075270000-memory.dmp

        Filesize

        7.7MB

      • memory/812-67-0x0000000074AC0000-0x0000000075270000-memory.dmp

        Filesize

        7.7MB

      • memory/812-64-0x00000000070F0000-0x00000000070F8000-memory.dmp

        Filesize

        32KB

      • memory/812-63-0x0000000007110000-0x000000000712A000-memory.dmp

        Filesize

        104KB

      • memory/812-28-0x0000000005370000-0x00000000053D6000-memory.dmp

        Filesize

        408KB

      • memory/812-29-0x00000000053E0000-0x0000000005446000-memory.dmp

        Filesize

        408KB

      • memory/812-62-0x0000000007010000-0x0000000007024000-memory.dmp

        Filesize

        80KB

      • memory/812-27-0x0000000004B60000-0x0000000004B82000-memory.dmp

        Filesize

        136KB

      • memory/3156-83-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/3156-88-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/3156-87-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4312-80-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/4312-82-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/4312-78-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/4360-77-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4360-81-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4360-79-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4764-8-0x0000000074A40000-0x00000000751F0000-memory.dmp

        Filesize

        7.7MB

      • memory/4764-16-0x0000000074A40000-0x00000000751F0000-memory.dmp

        Filesize

        7.7MB

      • memory/4764-7-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

        Filesize

        4KB

      • memory/4764-0-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

        Filesize

        4KB

      • memory/4764-1-0x0000000000E40000-0x0000000000F2A000-memory.dmp

        Filesize

        936KB

      • memory/4764-3-0x0000000005930000-0x00000000059C2000-memory.dmp

        Filesize

        584KB

      • memory/4764-2-0x0000000005FB0000-0x0000000006554000-memory.dmp

        Filesize

        5.6MB

      • memory/4764-4-0x0000000074A40000-0x00000000751F0000-memory.dmp

        Filesize

        7.7MB

      • memory/4764-6-0x0000000005C90000-0x0000000005CA8000-memory.dmp

        Filesize

        96KB

      • memory/4764-9-0x0000000006C90000-0x0000000006D50000-memory.dmp

        Filesize

        768KB

      • memory/4764-10-0x0000000006F50000-0x0000000006FEC000-memory.dmp

        Filesize

        624KB

      • memory/4764-5-0x0000000005920000-0x000000000592A000-memory.dmp

        Filesize

        40KB

      • memory/5000-11-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-91-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/5000-76-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-73-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-15-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-14-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-12-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-71-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-70-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-69-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-26-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-23-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-22-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-72-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-94-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/5000-95-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/5000-96-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-42-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-101-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-102-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-109-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-110-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-117-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-118-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-125-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/5000-126-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB