Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2024 01:03

General

  • Target

    156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.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 18 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe
    "C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.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:2284
    • 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\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3600
    • 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:4152
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZukuCcvWAQW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp843E.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2924
    • C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe
      "C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe"
      2⤵
        PID:3288
      • C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe
        "C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2792
        • C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe
          C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe /stext "C:\Users\Admin\AppData\Local\Temp\xmqcfpgazwvattwiboptrltrtuzqoi"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2084
        • C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe
          C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe /stext "C:\Users\Admin\AppData\Local\Temp\igwvghrbmenfwzkmkzjncynibairhtibl"
          3⤵
          • Accesses Microsoft Outlook accounts
          • System Location Discovery: System Language Discovery
          PID:4888
        • C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe
          C:\Users\Admin\AppData\Local\Temp\156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75.exe /stext "C:\Users\Admin\AppData\Local\Temp\sibnza"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4856
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4116,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=4448 /prefetch:8
      1⤵
        PID:1508

      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

        8749ac134b2d3fe94f59c7cd5bd14c2c

        SHA1

        bc654d67c50a7c2971b038931504335108d62b3a

        SHA256

        666834e122523413a41f77c10e86e222c4c3a1531dc0012a5788370d44cef427

        SHA512

        df61ce309516a03cc2194d8639610d654a82be71fccbd23bf7e05a8cba68913fef8bbdc04fab16754648824658328fd0831f0221477eacbcd927218a60f4ab82

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wjimsnn0.po5.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmp843E.tmp

        Filesize

        1KB

        MD5

        6c8bd20a8a1358e74204fcd828892d0d

        SHA1

        14c80eee8aa29a389df9e283bb9824d490186a9d

        SHA256

        1d49546a672d2c42dadea4c0e19de63ab78afccaa97a2710171e751fa552e372

        SHA512

        87be38d6b36f85b62840f9487343f633a058406d63bbb47debd59deebdbbf76880702aaf6a4809e111f932305f5f4e294ee8492acfe9e62496fa3c2766d357c2

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

        Filesize

        4KB

        MD5

        cda83eba5a004554ccdc061fd3df499c

        SHA1

        58ff2ecb9d47be10335e104896c87c62dc328523

        SHA256

        e384f4d46587646c6e0f9d2ee90b7bc57b49cea936b37cf8ab81ef3c4ce468ac

        SHA512

        f55ce20f0cf8b603fad765b889607f967c22d377fa4ac417ba1309d0aced9231e197bb4107d1c92bb99f51c04cc68ce26148727a8b694886710100c01f3de597

      • memory/2084-91-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2084-90-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2084-89-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2284-41-0x0000000075250000-0x0000000075A00000-memory.dmp

        Filesize

        7.7MB

      • memory/2284-2-0x00000000057B0000-0x0000000005D54000-memory.dmp

        Filesize

        5.6MB

      • memory/2284-10-0x000000000C440000-0x000000000C4DC000-memory.dmp

        Filesize

        624KB

      • memory/2284-1-0x0000000000810000-0x0000000000914000-memory.dmp

        Filesize

        1.0MB

      • memory/2284-8-0x0000000075250000-0x0000000075A00000-memory.dmp

        Filesize

        7.7MB

      • memory/2284-7-0x000000007525E000-0x000000007525F000-memory.dmp

        Filesize

        4KB

      • memory/2284-9-0x0000000009380000-0x0000000009440000-memory.dmp

        Filesize

        768KB

      • memory/2284-6-0x0000000006970000-0x000000000698E000-memory.dmp

        Filesize

        120KB

      • memory/2284-3-0x0000000005300000-0x0000000005392000-memory.dmp

        Filesize

        584KB

      • memory/2284-0-0x000000007525E000-0x000000007525F000-memory.dmp

        Filesize

        4KB

      • memory/2284-4-0x00000000053C0000-0x00000000053CA000-memory.dmp

        Filesize

        40KB

      • memory/2284-5-0x0000000075250000-0x0000000075A00000-memory.dmp

        Filesize

        7.7MB

      • memory/2792-52-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2792-110-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2792-24-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2792-115-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2792-58-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2792-113-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2792-30-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2792-114-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/2792-25-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2792-27-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2792-76-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2792-59-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2792-23-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2792-56-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/2792-55-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/3600-36-0x0000000006350000-0x00000000063B6000-memory.dmp

        Filesize

        408KB

      • memory/3600-54-0x0000000006D10000-0x0000000006D5C000-memory.dmp

        Filesize

        304KB

      • memory/3600-60-0x0000000007920000-0x0000000007952000-memory.dmp

        Filesize

        200KB

      • memory/3600-61-0x0000000075AE0000-0x0000000075B2C000-memory.dmp

        Filesize

        304KB

      • memory/3600-71-0x0000000006F40000-0x0000000006F5E000-memory.dmp

        Filesize

        120KB

      • memory/3600-72-0x0000000007B60000-0x0000000007C03000-memory.dmp

        Filesize

        652KB

      • memory/3600-74-0x0000000007C90000-0x0000000007CAA000-memory.dmp

        Filesize

        104KB

      • memory/3600-73-0x00000000082D0000-0x000000000894A000-memory.dmp

        Filesize

        6.5MB

      • memory/3600-53-0x0000000006960000-0x000000000697E000-memory.dmp

        Filesize

        120KB

      • memory/3600-77-0x0000000007D00000-0x0000000007D0A000-memory.dmp

        Filesize

        40KB

      • memory/3600-28-0x00000000061D0000-0x00000000061F2000-memory.dmp

        Filesize

        136KB

      • memory/3600-88-0x0000000007F10000-0x0000000007FA6000-memory.dmp

        Filesize

        600KB

      • memory/3600-42-0x00000000064C0000-0x0000000006814000-memory.dmp

        Filesize

        3.3MB

      • memory/3600-29-0x0000000006270000-0x00000000062D6000-memory.dmp

        Filesize

        408KB

      • memory/3600-118-0x0000000007FD0000-0x0000000007FEA000-memory.dmp

        Filesize

        104KB

      • memory/3600-116-0x0000000007EC0000-0x0000000007ECE000-memory.dmp

        Filesize

        56KB

      • memory/3600-125-0x0000000075250000-0x0000000075A00000-memory.dmp

        Filesize

        7.7MB

      • memory/3600-20-0x0000000075250000-0x0000000075A00000-memory.dmp

        Filesize

        7.7MB

      • memory/3600-18-0x0000000075250000-0x0000000075A00000-memory.dmp

        Filesize

        7.7MB

      • memory/3600-17-0x0000000005B60000-0x0000000006188000-memory.dmp

        Filesize

        6.2MB

      • memory/3600-16-0x0000000075250000-0x0000000075A00000-memory.dmp

        Filesize

        7.7MB

      • memory/3600-101-0x0000000007E90000-0x0000000007EA1000-memory.dmp

        Filesize

        68KB

      • memory/3600-15-0x0000000003040000-0x0000000003076000-memory.dmp

        Filesize

        216KB

      • memory/4152-21-0x0000000075250000-0x0000000075A00000-memory.dmp

        Filesize

        7.7MB

      • memory/4152-117-0x0000000007C70000-0x0000000007C84000-memory.dmp

        Filesize

        80KB

      • memory/4152-119-0x0000000007D50000-0x0000000007D58000-memory.dmp

        Filesize

        32KB

      • memory/4152-78-0x0000000075AE0000-0x0000000075B2C000-memory.dmp

        Filesize

        304KB

      • memory/4152-126-0x0000000075250000-0x0000000075A00000-memory.dmp

        Filesize

        7.7MB

      • memory/4152-22-0x0000000075250000-0x0000000075A00000-memory.dmp

        Filesize

        7.7MB

      • memory/4856-98-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4856-99-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4856-100-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4888-92-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/4888-95-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/4888-93-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB