Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-02-2025 18:33

General

  • Target

    vwfGI75DCjPX5gK.exe

  • Size

    1.1MB

  • MD5

    1692cdb5ee56b3f17e1aa1514c8dd3e8

  • SHA1

    6323c53db834380949ec820c2964bbe079662ad4

  • SHA256

    0ee949c974ffb77c9c61400f423355b9670d0b5918a85331bb34b15fa6a1d20b

  • SHA512

    48844ff2e284010c2f33d8a1837413766d16b6cbf5d3b24035ded467c8ca4313be3db0a42e5a8c680d8d198e2ea6782067df502d9e465e19aa07fa58bf5914ee

  • SSDEEP

    24576:BAorweYxrXqa1dNMQd+TtnSXYv+Nd+Vp3obdg3vb6u:BvwFX91zMhTtnJmH+zobdS6u

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

tjwpn04kn.localto.net:2247

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

    hytg

  • mouse_option

    false

  • mutex

    Rmc-JD0XH1

  • 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 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.

  • Uses the VBS compiler for execution 1 TTPs
  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\vwfGI75DCjPX5gK.exe
    "C:\Users\Admin\AppData\Local\Temp\vwfGI75DCjPX5gK.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:1740
    • 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\vwfGI75DCjPX5gK.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4912
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ECbBoeJPQbIy.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4184
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ECbBoeJPQbIy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD205.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3088
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:3556
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3936
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\iksojynkv"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:1576
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\lmfzkqferovp"
          3⤵
            PID:4336
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\lmfzkqferovp"
            3⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:2428
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\vgkrliqffwnupnq"
            3⤵
              PID:4836
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
              C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\vgkrliqffwnupnq"
              3⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:1224

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\hytg\logs.dat

          Filesize

          144B

          MD5

          2f46cfd13c86fa732d5fe2c26d35332d

          SHA1

          df9fdef51c8a520709f49ba91a467bdeb613fa3d

          SHA256

          0fcb7124803ad8932cd701ebaa0ece377315d3f6afa59a7414bc83ce455faa15

          SHA512

          4a6186dbd4b62439983ac67f23d6d1dafa1d17e13bd0b143dc060c7d3c5e8f09051c0888ff781a11afb82099a119216db71c7f0a3b529d67228f35300453b42c

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

          Filesize

          2KB

          MD5

          968cb9309758126772781b83adb8a28f

          SHA1

          8da30e71accf186b2ba11da1797cf67f8f78b47c

          SHA256

          92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

          SHA512

          4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

          Filesize

          18KB

          MD5

          55217b59ebbd4cf54674c401c0f38a59

          SHA1

          c611834973d774440a2f15c263189aff53ec5e57

          SHA256

          f4ba246f6f667b7b947a7af874bbac95af15368a494e834f34ee1e75abe05908

          SHA512

          0be44be42cb63e5650c22bda12ef4027b7163a07a34ed2df67177c9a449f6f36898f2783a41265301cc272e8a71df374a019ae7175bda51656204211def08a00

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kbfk02u4.oui.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

          Filesize

          4KB

          MD5

          7ee436e0deb0559f4fd96c619dba6546

          SHA1

          e0d9ac1e6effd881b792388ef5627dac43019d1c

          SHA256

          fd4f747a1dcecfe9d88b8b0fe99f6a68595c916c4694ef4a0cd66652804c365c

          SHA512

          a2721c8a2df0d73d7523691d7bb2c5d9f1e14a7647b191aea1aa1bea62e98c858077272c3800b23e4d4558f316f6acf4f3f5f2e179d7cdb78b80978808658302

        • C:\Users\Admin\AppData\Local\Temp\tmpD205.tmp

          Filesize

          1KB

          MD5

          7da6d08bf7d1b78bea2ba6597231ded8

          SHA1

          c22166fcf045f18a584a3c9ea59d1017cdb68df9

          SHA256

          fd0618f936a16ee6f705ff9b27a560b1e29ee7359abe7ddbdb1f8fabe9066e17

          SHA512

          9e3254daff7dd6a158a9b9989c3b8776e4c03ea3461078c087bfef675e1c37ce7ae854f90cf0a025453bb8714d1f51f769cbe771ea529b3c3dca533fcf692251

        • memory/1224-110-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/1224-115-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/1224-114-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/1576-108-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/1576-106-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/1576-104-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/1740-4-0x00000000055C0000-0x00000000055CA000-memory.dmp

          Filesize

          40KB

        • memory/1740-0-0x000000007519E000-0x000000007519F000-memory.dmp

          Filesize

          4KB

        • memory/1740-8-0x0000000075190000-0x0000000075940000-memory.dmp

          Filesize

          7.7MB

        • memory/1740-54-0x0000000075190000-0x0000000075940000-memory.dmp

          Filesize

          7.7MB

        • memory/1740-9-0x00000000069F0000-0x0000000006AB4000-memory.dmp

          Filesize

          784KB

        • memory/1740-6-0x0000000006BE0000-0x0000000006BFE000-memory.dmp

          Filesize

          120KB

        • memory/1740-1-0x0000000000A30000-0x0000000000B44000-memory.dmp

          Filesize

          1.1MB

        • memory/1740-7-0x000000007519E000-0x000000007519F000-memory.dmp

          Filesize

          4KB

        • memory/1740-2-0x0000000005BC0000-0x0000000006164000-memory.dmp

          Filesize

          5.6MB

        • memory/1740-5-0x0000000075190000-0x0000000075940000-memory.dmp

          Filesize

          7.7MB

        • memory/1740-10-0x000000000D6C0000-0x000000000D75C000-memory.dmp

          Filesize

          624KB

        • memory/1740-3-0x0000000005510000-0x00000000055A2000-memory.dmp

          Filesize

          584KB

        • memory/2428-109-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/2428-105-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/2428-107-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/3936-150-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-45-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-48-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-42-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-43-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-56-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-58-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-57-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-59-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-60-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-127-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-126-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-134-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-123-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-121-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/3936-85-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-122-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/3936-118-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/3936-135-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-143-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-142-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/3936-151-0x0000000000400000-0x0000000000480000-memory.dmp

          Filesize

          512KB

        • memory/4184-53-0x0000000006510000-0x000000000652E000-memory.dmp

          Filesize

          120KB

        • memory/4184-92-0x0000000007A90000-0x0000000007AA4000-memory.dmp

          Filesize

          80KB

        • memory/4184-94-0x0000000007B70000-0x0000000007B78000-memory.dmp

          Filesize

          32KB

        • memory/4184-100-0x0000000075190000-0x0000000075940000-memory.dmp

          Filesize

          7.7MB

        • memory/4184-91-0x0000000007A80000-0x0000000007A8E000-memory.dmp

          Filesize

          56KB

        • memory/4184-90-0x0000000007A50000-0x0000000007A61000-memory.dmp

          Filesize

          68KB

        • memory/4184-89-0x0000000007AD0000-0x0000000007B66000-memory.dmp

          Filesize

          600KB

        • memory/4184-88-0x00000000078C0000-0x00000000078CA000-memory.dmp

          Filesize

          40KB

        • memory/4184-73-0x000000006FAB0000-0x000000006FAFC000-memory.dmp

          Filesize

          304KB

        • memory/4184-55-0x00000000065A0000-0x00000000065EC000-memory.dmp

          Filesize

          304KB

        • memory/4184-32-0x0000000005E50000-0x00000000061A4000-memory.dmp

          Filesize

          3.3MB

        • memory/4184-26-0x0000000075190000-0x0000000075940000-memory.dmp

          Filesize

          7.7MB

        • memory/4184-25-0x0000000075190000-0x0000000075940000-memory.dmp

          Filesize

          7.7MB

        • memory/4184-19-0x0000000075190000-0x0000000075940000-memory.dmp

          Filesize

          7.7MB

        • memory/4912-24-0x0000000005F80000-0x0000000005FE6000-memory.dmp

          Filesize

          408KB

        • memory/4912-101-0x0000000075190000-0x0000000075940000-memory.dmp

          Filesize

          7.7MB

        • memory/4912-93-0x0000000007C00000-0x0000000007C1A000-memory.dmp

          Filesize

          104KB

        • memory/4912-87-0x00000000078C0000-0x00000000078DA000-memory.dmp

          Filesize

          104KB

        • memory/4912-86-0x0000000007F00000-0x000000000857A000-memory.dmp

          Filesize

          6.5MB

        • memory/4912-61-0x0000000007520000-0x0000000007552000-memory.dmp

          Filesize

          200KB

        • memory/4912-72-0x0000000007500000-0x000000000751E000-memory.dmp

          Filesize

          120KB

        • memory/4912-74-0x0000000007770000-0x0000000007813000-memory.dmp

          Filesize

          652KB

        • memory/4912-62-0x000000006FAB0000-0x000000006FAFC000-memory.dmp

          Filesize

          304KB

        • memory/4912-21-0x00000000055E0000-0x0000000005602000-memory.dmp

          Filesize

          136KB

        • memory/4912-23-0x0000000005CE0000-0x0000000005D46000-memory.dmp

          Filesize

          408KB

        • memory/4912-20-0x0000000075190000-0x0000000075940000-memory.dmp

          Filesize

          7.7MB

        • memory/4912-18-0x0000000075190000-0x0000000075940000-memory.dmp

          Filesize

          7.7MB

        • memory/4912-17-0x0000000005640000-0x0000000005C68000-memory.dmp

          Filesize

          6.2MB

        • memory/4912-16-0x0000000075190000-0x0000000075940000-memory.dmp

          Filesize

          7.7MB

        • memory/4912-15-0x0000000004FD0000-0x0000000005006000-memory.dmp

          Filesize

          216KB