Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-11-2024 02:54

General

  • Target

    ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28.exe

  • Size

    738KB

  • MD5

    2e24786e3a50dddc9e8044942ed76557

  • SHA1

    fd17c905199eaa0933fb9b78b45ca0c4e87c787c

  • SHA256

    ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28

  • SHA512

    029375abc32bfd0495334a893682a31ccfeb2251b0d5c64f99cd2b6e6ce96eb10359fbf00b598279f6d5b896ee75da0f3a092f9de610be9b9c33ee23a4a040b3

  • SSDEEP

    12288:oyoqBI5daGf9SVr5Y91FmGe1C1scoGcZhAkFN2ZTyWy0ctqhm2V76:oyocI7aGf9mgjmPSsccAgN2ZT1HI2V76

Malware Config

Extracted

Family

remcos

Botnet

Clients

C2

windowthankyou.duckdns.org:2404

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-0OEGFQ

  • 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 and hide display window.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Blocklisted process makes network request 4 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Windows directory 2 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.

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28.exe
    "C:\Users\Admin\AppData\Local\Temp\ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3996
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -windowstyle hidden "$Driftschef=Get-Content -raw 'C:\Users\Admin\AppData\Local\idiograph\pseudocultural\Digitised194\Jumblement.Kar';$q=$Driftschef.SubString(51945,3);.$q($Driftschef)"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:900
      • C:\Windows\SysWOW64\msiexec.exe
        "C:\Windows\SysWOW64\msiexec.exe"
        3⤵
        • Blocklisted process makes network request
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4076
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Indefeasibility" /t REG_EXPAND_SZ /d "%Resections% -windowstyle 1 $Kolportage=(gp -Path 'HKCU:\Software\Belindas\').heikes;%Resections% ($Kolportage)"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2964
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Indefeasibility" /t REG_EXPAND_SZ /d "%Resections% -windowstyle 1 $Kolportage=(gp -Path 'HKCU:\Software\Belindas\').heikes;%Resections% ($Kolportage)"
            5⤵
            • Adds Run key to start application
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:4784
        • C:\Windows\SysWOW64\msiexec.exe
          C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\sprpsvbrcarvrcqrjc"
          4⤵
            PID:4592
          • C:\Windows\SysWOW64\msiexec.exe
            C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\sprpsvbrcarvrcqrjc"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:3332
          • C:\Windows\SysWOW64\msiexec.exe
            C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\drwhtomtqijitjevsmyxo"
            4⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:1356
          • C:\Windows\SysWOW64\msiexec.exe
            C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\nlkstgxmeqbnepazjxszzmxth"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3004

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_q1ttx2ew.pyf.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

      Filesize

      4KB

      MD5

      562a58578d6d04c7fb6bda581c57c03c

      SHA1

      12ab2b88624d01da0c5f5d1441aa21cbc276c5f5

      SHA256

      ff5c70287ba432a83f9015209d6e933462edca01d68c53c09882e1e4d22241c8

      SHA512

      3f6e19faa0196bd4c085defa587e664abdd63c25ef30df8f4323e60a5a5aca3cd2709466f772e64ab00fe331d4264841422d6057451947f3500e9252a132254e

    • C:\Users\Admin\AppData\Local\idiograph\pseudocultural\Digitised194\Chervil.ure

      Filesize

      302KB

      MD5

      c8f1f656c0732cc614e4a40e8468e650

      SHA1

      08eab64c64cb602cd97f5c5db84c01024a3e1f9f

      SHA256

      ec76dcd52b9a58f6c0dd721f8ffe4de3351cdad95ba68d4b6d0b836fa2ac9c36

      SHA512

      653302a74ae261787a9a8ad836d6005b5f10c99a7bb10c2e9683ccc7945254c8e5a38d3730ae28eeaa11c5dd25ceec932514bd23c6a4ce71c69f76f79b27db0d

    • C:\Users\Admin\AppData\Local\idiograph\pseudocultural\Digitised194\Jumblement.Kar

      Filesize

      50KB

      MD5

      5f22e57b55aa6e31d0606fa12e0ee584

      SHA1

      e83cf829d2d46ce8a16f117a437a32ad63c1173d

      SHA256

      0fd8188279b05a111878389f3fe41f48f28d27249560005ae6977b0e8fb137b2

      SHA512

      7c9ed6698e7e593597c92169c5ea97447b786439c09f33e26877852fae74dbdd8082c463baa3f5fefea9b3bb05014999389ec8f306e055ed5c99338fe0335900

    • memory/900-60-0x0000000073440000-0x0000000073BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/900-24-0x0000000005780000-0x00000000057A2000-memory.dmp

      Filesize

      136KB

    • memory/900-62-0x0000000008560000-0x000000000950F000-memory.dmp

      Filesize

      15.7MB

    • memory/900-25-0x0000000005820000-0x0000000005886000-memory.dmp

      Filesize

      408KB

    • memory/900-64-0x0000000073440000-0x0000000073BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/900-27-0x0000000005910000-0x0000000005C64000-memory.dmp

      Filesize

      3.3MB

    • memory/900-28-0x0000000005C70000-0x0000000005C8E000-memory.dmp

      Filesize

      120KB

    • memory/900-29-0x0000000005C90000-0x0000000005CDC000-memory.dmp

      Filesize

      304KB

    • memory/900-30-0x0000000006C50000-0x0000000006CE6000-memory.dmp

      Filesize

      600KB

    • memory/900-31-0x0000000006140000-0x000000000615A000-memory.dmp

      Filesize

      104KB

    • memory/900-32-0x00000000061B0000-0x00000000061D2000-memory.dmp

      Filesize

      136KB

    • memory/900-33-0x00000000072B0000-0x0000000007854000-memory.dmp

      Filesize

      5.6MB

    • memory/900-12-0x0000000073440000-0x0000000073BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/900-35-0x0000000007EE0000-0x000000000855A000-memory.dmp

      Filesize

      6.5MB

    • memory/900-37-0x000000006F8D0000-0x000000006F91C000-memory.dmp

      Filesize

      304KB

    • memory/900-36-0x00000000070A0000-0x00000000070D2000-memory.dmp

      Filesize

      200KB

    • memory/900-39-0x000000006FA30000-0x000000006FD84000-memory.dmp

      Filesize

      3.3MB

    • memory/900-49-0x0000000007080000-0x000000000709E000-memory.dmp

      Filesize

      120KB

    • memory/900-38-0x0000000073440000-0x0000000073BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/900-50-0x00000000070F0000-0x0000000007193000-memory.dmp

      Filesize

      652KB

    • memory/900-51-0x0000000073440000-0x0000000073BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/900-52-0x0000000007210000-0x000000000721A000-memory.dmp

      Filesize

      40KB

    • memory/900-54-0x0000000007280000-0x00000000072A4000-memory.dmp

      Filesize

      144KB

    • memory/900-53-0x0000000007250000-0x000000000727A000-memory.dmp

      Filesize

      168KB

    • memory/900-55-0x0000000073440000-0x0000000073BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/900-57-0x0000000073440000-0x0000000073BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/900-13-0x0000000004D80000-0x00000000053A8000-memory.dmp

      Filesize

      6.2MB

    • memory/900-59-0x000000007344E000-0x000000007344F000-memory.dmp

      Filesize

      4KB

    • memory/900-10-0x000000007344E000-0x000000007344F000-memory.dmp

      Filesize

      4KB

    • memory/900-61-0x0000000073440000-0x0000000073BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/900-26-0x00000000058A0000-0x0000000005906000-memory.dmp

      Filesize

      408KB

    • memory/900-63-0x0000000073440000-0x0000000073BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/900-14-0x0000000073440000-0x0000000073BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/900-65-0x0000000073440000-0x0000000073BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/900-11-0x0000000002600000-0x0000000002636000-memory.dmp

      Filesize

      216KB

    • memory/1356-76-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/1356-85-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/1356-83-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/3004-81-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/3004-77-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/3004-82-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/3332-80-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/3332-78-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/3332-75-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/3332-84-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/4076-102-0x0000000000A00000-0x0000000001C54000-memory.dmp

      Filesize

      18.3MB

    • memory/4076-97-0x0000000000A00000-0x0000000001C54000-memory.dmp

      Filesize

      18.3MB

    • memory/4076-68-0x0000000001C60000-0x0000000002C0F000-memory.dmp

      Filesize

      15.7MB

    • memory/4076-95-0x000000001EAE0000-0x000000001EAF9000-memory.dmp

      Filesize

      100KB

    • memory/4076-66-0x0000000001C60000-0x0000000002C0F000-memory.dmp

      Filesize

      15.7MB

    • memory/4076-91-0x000000001EAE0000-0x000000001EAF9000-memory.dmp

      Filesize

      100KB

    • memory/4076-94-0x000000001EAE0000-0x000000001EAF9000-memory.dmp

      Filesize

      100KB

    • memory/4076-73-0x0000000000A00000-0x0000000001C54000-memory.dmp

      Filesize

      18.3MB

    • memory/4076-96-0x0000000000A00000-0x0000000001C54000-memory.dmp

      Filesize

      18.3MB

    • memory/4076-106-0x0000000000A00000-0x0000000001C54000-memory.dmp

      Filesize

      18.3MB

    • memory/4076-98-0x0000000000A00000-0x0000000001C54000-memory.dmp

      Filesize

      18.3MB

    • memory/4076-99-0x0000000000A00000-0x0000000001C54000-memory.dmp

      Filesize

      18.3MB

    • memory/4076-100-0x0000000000A00000-0x0000000001C54000-memory.dmp

      Filesize

      18.3MB

    • memory/4076-101-0x0000000000A00000-0x0000000001C54000-memory.dmp

      Filesize

      18.3MB

    • memory/4076-70-0x0000000000A00000-0x0000000001C54000-memory.dmp

      Filesize

      18.3MB

    • memory/4076-103-0x0000000000A00000-0x0000000001C54000-memory.dmp

      Filesize

      18.3MB

    • memory/4076-67-0x0000000000A00000-0x0000000001C54000-memory.dmp

      Filesize

      18.3MB