Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-10-2024 08:35

General

  • Target

    SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe

  • Size

    1.0MB

  • MD5

    06288ac34c34b1751dca19951d6140f8

  • SHA1

    e3af412db4368c7a3c7b3a0a812c2af6903bb697

  • SHA256

    156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75

  • SHA512

    47cd551807523783db43570df4d3ab4edb52699b8a118b91453c12aa5c5ca3b746a023ce6b5b0561754f876671136312b9aa725d6a8c5fec0ef004231caaf039

  • SSDEEP

    24576:FyAXOCNGRx9s8Qbzjx84azkY9zIe8BIPX66Id:FyQOyax9sbjNaznzbmIvrId

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

hiddenrmcnew.duckdns.org:7839

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-PW8G0U

  • 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.

  • 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.

  • 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 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 8 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 13 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.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:4696
    • 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\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4176
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZukuCcvWAQW.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3972
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZukuCcvWAQW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF750.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4020
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1872
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe
        C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe /stext "C:\Users\Admin\AppData\Local\Temp\yfylkdeh"
        3⤵
          PID:3252
        • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe
          C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe /stext "C:\Users\Admin\AppData\Local\Temp\yfylkdeh"
          3⤵
            PID:4812
          • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe
            C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe /stext "C:\Users\Admin\AppData\Local\Temp\yfylkdeh"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:2304
          • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe
            C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe /stext "C:\Users\Admin\AppData\Local\Temp\ahedlwojdhc"
            3⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:4804
          • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe
            C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe /stext "C:\Users\Admin\AppData\Local\Temp\lbrolozcrpufkq"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2752

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        3d086a433708053f9bf9523e1d87a4e8

        SHA1

        b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

        SHA256

        6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

        SHA512

        931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        18KB

        MD5

        fb5b38d4ab1be9cd356657bf23fc006c

        SHA1

        9300435bd7f1b41b53bd15f524220b5681cc4bf8

        SHA256

        d896f4c0d32b2d5213d79170466a49bea187d8b7571d40e15841b9eea63f6db5

        SHA512

        00f9b91d6dbc4c3a7a95006c79ba09e0a72cfbbe9e89cd2d703d4cabd7b649d28143e50ebec80525ef5baf780c19d342a0085331f156aafda7954dcb9c2e20ac

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2tjqw13a.b1j.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmpF750.tmp

        Filesize

        1KB

        MD5

        6ab5b2207f6eea8fef330a68c599ac36

        SHA1

        f74a8a17dfd47c777c5ad1fbd714140ae04b63dc

        SHA256

        b402ff26903d85fff85daf584db13a5b8e7c8aced2e5a411cae73590802fff17

        SHA512

        62990b3d835c707b4f734af92b32c69e0ce9538f4484f964ab1e62134d5f2b2e1e004721125a8cf527cb3d88c88dd915abe2af975bf5b915a38ca756551b8abf

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

        Filesize

        4KB

        MD5

        05d209dc2e52f4877b0210319d699d7c

        SHA1

        f80b9ea3164019831fa0b5cffc864c0d496a002b

        SHA256

        278f3fd9076c23dc3d397375c5f586aa23b15c9e42b22139748e20f70f127160

        SHA512

        701f72884bf941ec3e60f6f8bb98c26743447c276de2d15ca27a406ccc6a39dafeef9a6f83264d52ebb93923af738fa7b16f617fb33dc54e5a7ed93b188aee9a

      • memory/1872-70-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/1872-37-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/1872-38-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/1872-118-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/1872-52-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/1872-25-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/1872-67-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/1872-113-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/1872-116-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/1872-86-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/1872-82-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/1872-83-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/1872-117-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2304-104-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2304-99-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2304-101-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2752-102-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2752-106-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2752-105-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/3972-22-0x00000000750D0000-0x0000000075880000-memory.dmp

        Filesize

        7.7MB

      • memory/3972-24-0x0000000004EF0000-0x0000000004F56000-memory.dmp

        Filesize

        408KB

      • memory/3972-97-0x00000000750D0000-0x0000000075880000-memory.dmp

        Filesize

        7.7MB

      • memory/3972-23-0x0000000004E50000-0x0000000004E72000-memory.dmp

        Filesize

        136KB

      • memory/3972-50-0x0000000005DE0000-0x0000000005DFE000-memory.dmp

        Filesize

        120KB

      • memory/3972-51-0x0000000006360000-0x00000000063AC000-memory.dmp

        Filesize

        304KB

      • memory/3972-31-0x0000000004F60000-0x0000000004FC6000-memory.dmp

        Filesize

        408KB

      • memory/3972-19-0x00000000750D0000-0x0000000075880000-memory.dmp

        Filesize

        7.7MB

      • memory/3972-69-0x0000000075960000-0x00000000759AC000-memory.dmp

        Filesize

        304KB

      • memory/4176-87-0x0000000007520000-0x0000000007531000-memory.dmp

        Filesize

        68KB

      • memory/4176-17-0x00000000050C0000-0x00000000056E8000-memory.dmp

        Filesize

        6.2MB

      • memory/4176-53-0x0000000006F70000-0x0000000006FA2000-memory.dmp

        Filesize

        200KB

      • memory/4176-68-0x0000000007320000-0x000000000733A000-memory.dmp

        Filesize

        104KB

      • memory/4176-15-0x0000000004A50000-0x0000000004A86000-memory.dmp

        Filesize

        216KB

      • memory/4176-64-0x00000000065A0000-0x00000000065BE000-memory.dmp

        Filesize

        120KB

      • memory/4176-66-0x0000000007960000-0x0000000007FDA000-memory.dmp

        Filesize

        6.5MB

      • memory/4176-81-0x0000000007390000-0x000000000739A000-memory.dmp

        Filesize

        40KB

      • memory/4176-20-0x00000000750D0000-0x0000000075880000-memory.dmp

        Filesize

        7.7MB

      • memory/4176-54-0x0000000075960000-0x00000000759AC000-memory.dmp

        Filesize

        304KB

      • memory/4176-84-0x00000000075A0000-0x0000000007636000-memory.dmp

        Filesize

        600KB

      • memory/4176-18-0x00000000750D0000-0x0000000075880000-memory.dmp

        Filesize

        7.7MB

      • memory/4176-98-0x00000000750D0000-0x0000000075880000-memory.dmp

        Filesize

        7.7MB

      • memory/4176-88-0x0000000007550000-0x000000000755E000-memory.dmp

        Filesize

        56KB

      • memory/4176-89-0x0000000007560000-0x0000000007574000-memory.dmp

        Filesize

        80KB

      • memory/4176-90-0x0000000007660000-0x000000000767A000-memory.dmp

        Filesize

        104KB

      • memory/4176-91-0x0000000007640000-0x0000000007648000-memory.dmp

        Filesize

        32KB

      • memory/4176-65-0x0000000006FC0000-0x0000000007063000-memory.dmp

        Filesize

        652KB

      • memory/4176-16-0x00000000750D0000-0x0000000075880000-memory.dmp

        Filesize

        7.7MB

      • memory/4176-39-0x0000000005A30000-0x0000000005D84000-memory.dmp

        Filesize

        3.3MB

      • memory/4696-7-0x00000000750DE000-0x00000000750DF000-memory.dmp

        Filesize

        4KB

      • memory/4696-4-0x00000000750D0000-0x0000000075880000-memory.dmp

        Filesize

        7.7MB

      • memory/4696-10-0x000000000B680000-0x000000000B71C000-memory.dmp

        Filesize

        624KB

      • memory/4696-9-0x00000000095C0000-0x0000000009680000-memory.dmp

        Filesize

        768KB

      • memory/4696-1-0x0000000000D50000-0x0000000000E54000-memory.dmp

        Filesize

        1.0MB

      • memory/4696-8-0x00000000750D0000-0x0000000075880000-memory.dmp

        Filesize

        7.7MB

      • memory/4696-0-0x00000000750DE000-0x00000000750DF000-memory.dmp

        Filesize

        4KB

      • memory/4696-6-0x0000000005A20000-0x0000000005A3E000-memory.dmp

        Filesize

        120KB

      • memory/4696-49-0x00000000750D0000-0x0000000075880000-memory.dmp

        Filesize

        7.7MB

      • memory/4696-2-0x0000000005D20000-0x00000000062C4000-memory.dmp

        Filesize

        5.6MB

      • memory/4696-3-0x0000000005850000-0x00000000058E2000-memory.dmp

        Filesize

        584KB

      • memory/4696-5-0x0000000005900000-0x000000000590A000-memory.dmp

        Filesize

        40KB

      • memory/4804-107-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/4804-103-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/4804-100-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB