Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/07/2024, 19:41

General

  • Target
    70f515d95bea22b5764185f203b57925_JaffaCakes118.exe
  • Size 2.7MB
  • Sample240725-yeebssteqa
  • SHA256 b53c443e37a06cf2c031531e3558e9f1cc2639d8f20148714f1744e3ed622681
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Disables service(s) 3 TTPs
  • RMS

    Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.

  • Indicator Removal: Network Share Connection Removal 1 TTPs 2 IoCs

    Adversaries may remove share connections that are no longer useful in order to clean up traces of their operation.

  • Modifies Windows Firewall 2 TTPs 8 IoCs
  • Sets file to hidden 1 TTPs 4 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 14 IoCs
  • Drops file in System32 directory 38 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 24 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 54 IoCs

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

  • Kills process with taskkill 5 IoCs
  • Modifies registry class 2 IoCs
  • Modifies registry key 1 TTPs 2 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\70f515d95bea22b5764185f203b57925_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\70f515d95bea22b5764185f203b57925_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2232
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\stop.js"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:208
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
        3⤵
        • Checks computer location settings
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:3236
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\mes.js"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3844
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im RManServer.exe
          4⤵
          • System Location Discovery: System Language Discovery
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:736
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rutserv.exe
          4⤵
          • System Location Discovery: System Language Discovery
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4600
        • C:\Windows\SysWOW64\reg.exe
          reg delete "HKLM\SYSTEM\Remote Manipulator System" /f
          4⤵
          • System Location Discovery: System Language Discovery
          PID:5016
        • C:\Windows\SysWOW64\attrib.exe
          attrib +s +h "C:\Windows\System32\catroot3"
          4⤵
          • Sets file to hidden
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2708
        • C:\Windows\SysWOW64\attrib.exe
          attrib +s +h +r "C:\Users\Admin\AppData\Local\Temp\stop.js"
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2440
        • C:\Windows\SysWOW64\attrib.exe
          attrib +s +h +r "C:\Users\Admin\AppData\Local\Temp\install.bat"
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:3116
        • C:\Windows\SysWOW64\attrib.exe
          attrib +s +h +r "C:\Windows\System32\de.exe"
          4⤵
          • Sets file to hidden
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:3576
        • C:\Windows\SysWOW64\net.exe
          net stop rserver3
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3944
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop rserver3
            5⤵
            • System Location Discovery: System Language Discovery
            PID:640
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rserver3.exe
          4⤵
          • System Location Discovery: System Language Discovery
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:3948
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im r_server.exe
          4⤵
          • System Location Discovery: System Language Discovery
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:3976
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im cam_server.exe
          4⤵
          • System Location Discovery: System Language Discovery
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:2416
        • C:\Windows\SysWOW64\attrib.exe
          attrib -s -h -r "C:\Windows\system32\cam_server.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:1036
        • C:\Windows\SysWOW64\attrib.exe
          attrib -s -h -r "C:\Windows\SysWOW64\cam_server.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2336
        • C:\Windows\SysWOW64\attrib.exe
          attrib -s -h "C:\Windows\system32\rserver30"
          4⤵
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2920
        • C:\Windows\SysWOW64\attrib.exe
          attrib -s -h "C:\Windows\SysWOW64\rserver30"
          4⤵
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:3324
        • C:\Windows\SysWOW64\attrib.exe
          attrib -s -h -r "C:\Windows\system32\r_server.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:3736
        • C:\Windows\SysWOW64\attrib.exe
          attrib -s -h -r "C:\Windows\SysWOW64\r_server.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:4872
        • C:\Windows\SysWOW64\net.exe
          net stop Telnet
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4700
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop Telnet
            5⤵
            • System Location Discovery: System Language Discovery
            PID:4016
        • C:\Windows\SysWOW64\sc.exe
          sc config tlntsvr start= disabled
          4⤵
          • Launches sc.exe
          • System Location Discovery: System Language Discovery
          PID:4788
        • C:\Windows\SysWOW64\net.exe
          net stop "Service Host Controller"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3488
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Service Host Controller"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2940
        • C:\Windows\SysWOW64\net.exe
          net user HelpAssistant /delete
          4⤵
          • Indicator Removal: Network Share Connection Removal
          • System Location Discovery: System Language Discovery
          PID:4252
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 user HelpAssistant /delete
            5⤵
            • Indicator Removal: Network Share Connection Removal
            • System Location Discovery: System Language Discovery
            PID:1660
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /delete /tn security /f
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3520
        • C:\Windows\SysWOW64\netsh.exe
          netsh advfirewall firewall delete rule name="RealIP"
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:768
        • C:\Windows\SysWOW64\netsh.exe
          netsh advfirewall firewall delete rule name="Microsoft Outlook Express"
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:5028
        • C:\Windows\SysWOW64\netsh.exe
          netsh advfirewall firewall delete rule name="Service Host Controller"
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:3616
        • C:\Windows\SysWOW64\netsh.exe
          netsh advfirewall firewall delete rule name="ò«ßΓ-»α«µÑßß ñ½∩ ß½πªí Windows"
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:1476
        • C:\Windows\SysWOW64\netsh.exe
          netsh advfirewall firewall delete rule name="ò«ßΓ-»α«µÑßß ñ½∩ ºáñáτ Windows"
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:4772
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall delete portopening tcp 57009
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:4128
        • C:\Windows\SysWOW64\netsh.exe
          netsh advfirewall firewall delete rule name="cam_server"
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:3392
        • C:\Windows\SysWOW64\netsh.exe
          netsh advfirewall firewall delete portopening tcp 57011 all
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:2148
        • C:\Windows\SysWOW64\reg.exe
          reg delete HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run /v "Ä»Ñαᵿ«¡¡á∩ ß¿ßΓѼá Microsoft Windows" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:2016
        • C:\Windows\SysWOW64\reg.exe
          reg delete HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run /v "Service Host Controller" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:1784
        • C:\Windows\SysWOW64\reg.exe
          reg delete "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList" /v HelpAssistant /f
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1044
        • C:\Windows\SysWOW64\reg.exe
          reg delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "cam_server.exe" /f
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1812
        • C:\Windows\SysWOW64\reg.exe
          reg delete "HKLM\System\CurrentControlSet\Services\RServer3" /f
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1172
        • C:\Windows\SysWOW64\catroot3\rutserv.exe
          "rutserv.exe" /silentinstall
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:1220
        • C:\Windows\SysWOW64\catroot3\rutserv.exe
          "rutserv.exe" /firewall
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:3508
        • C:\Windows\SysWOW64\regedit.exe
          regedit /s set.reg
          4⤵
          • System Location Discovery: System Language Discovery
          • Runs .reg file with regedit
          PID:4912
        • C:\Windows\SysWOW64\catroot3\rutserv.exe
          "rutserv.exe" /start
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:1944
        • C:\Windows\SysWOW64\attrib.exe
          attrib -s -h -r "C:\Users\Admin\AppData\Local\Temp\stop.js"
          4⤵
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:3964
        • C:\Windows\SysWOW64\attrib.exe
          attrib -s -h -r "C:\Users\Admin\AppData\Local\Temp\install.bat"
          4⤵
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:1116
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7ZSfx000.cmd" "
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5084
  • C:\Windows\SysWOW64\catroot3\rutserv.exe
    C:\Windows\SysWOW64\catroot3\rutserv.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3116
    • C:\Windows\SysWOW64\catroot3\rfusclient.exe
      C:\Windows\SysWOW64\catroot3\rfusclient.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2440
      • C:\Windows\SysWOW64\catroot3\rfusclient.exe
        C:\Windows\SysWOW64\catroot3\rfusclient.exe /tray
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3488
    • C:\Windows\SysWOW64\catroot3\rfusclient.exe
      C:\Windows\SysWOW64\catroot3\rfusclient.exe /tray
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2340

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        7ZSfx000.cmd

        • Path C:\Users\Admin\AppData\Local\Temp\7ZSfx000.cmd
        • Size 264B
        • SHA256 0c4237f0cd64e96ede10567d79aa432034f2a9d036cd6114f1073777674f9576
        • MD5 SHA1 SHA512

        HookDrv.dll

        • Path C:\Users\Admin\AppData\Local\Temp\HookDrv.dll
        • Size 144KB
        • SHA256 02dbea75e8dbcdfc12c6b92a6c08efad83d4ca742ed7aee393ab26cab0c58f9e
        • MD5 SHA1 SHA512 SSDEEP

        Microsoft.VC80.CRT.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\Microsoft.VC80.CRT.manifest
        • Size 1KB
        • SHA256 a50941352cb9d8f7ba6fbf7db5c8af95fb5ab76fc5d60cfd0984e558678908cc
        • MD5 SHA1 SHA512

        PushSource.ax

        • Path C:\Users\Admin\AppData\Local\Temp\PushSource.ax
        • Size 448KB
        • SHA256 0914ab04bfd258008fec4605c3fa0e23c0d5111b9cfc374cfa4eaa1b4208dff7
        • MD5 SHA1 SHA512 SSDEEP

        RIPCServer.dll

        • Path C:\Users\Admin\AppData\Local\Temp\RIPCServer.dll
        • Size 96KB
        • SHA256 24735b40df2cdac4da4e3201fc597eed5566c5c662aa312fa491b7a24e244844
        • MD5 SHA1 SHA512 SSDEEP

        RWLN.dll

        • Path C:\Users\Admin\AppData\Local\Temp\RWLN.dll
        • Size 325KB
        • SHA256 7bda291b7f50049088ea418b5695929b9be11cc014f6ec0f43f495285d1d6f74
        • MD5 SHA1 SHA512 SSDEEP

        de.exe

        • Path C:\Users\Admin\AppData\Local\Temp\de.exe
        • Size 98KB
        • SHA256 cdb8330b9a36462dad63fb5c98520c4dd1cecf8a20d071bb0eff15ecf9fe0c98
        • MD5 SHA1 SHA512 SSDEEP

        dsfOggMux.dll

        • Path C:\Users\Admin\AppData\Local\Temp\dsfOggMux.dll
        • Size 84KB
        • SHA256 ef12a65d861a14aed28480946bc56fce479a21e9beac2983239eac6551d4f32e
        • MD5 SHA1 SHA512 SSDEEP

        dsfTheoraEncoder.dll

        • Path C:\Users\Admin\AppData\Local\Temp\dsfTheoraEncoder.dll
        • Size 240KB
        • SHA256 f8686d8752801bb21c3d94ebe743758d79b9b59f33589ec8620e75a949d1871f
        • MD5 SHA1 SHA512 SSDEEP

        dsfVorbisEncoder.dll

        • Path C:\Users\Admin\AppData\Local\Temp\dsfVorbisEncoder.dll
        • Size 1.6MB
        • SHA256 2cede6701b73a4ddd6422fde157ea54644a3a9598b3ba217cf2b30b595cf6282
        • MD5 SHA1 SHA512 SSDEEP

        install.bat

        • Path C:\Users\Admin\AppData\Local\Temp\install.bat
        • Size 4KB
        • SHA256 41e65323386d46854c2d47721abc6cd07cf0932912e79637a8d663d2dcb5c465
        • MD5 SHA1 SHA512 SSDEEP

        mes.js

        • Path C:\Users\Admin\AppData\Local\Temp\mes.js
        • Size 154B
        • SHA256 49d4efe001243866edc91f8f9fd6231e1602bcfcab4e508d23d0cb5e68ea35c2
        • MD5 SHA1 SHA512

        msvcp80.dll

        • Path C:\Users\Admin\AppData\Local\Temp\msvcp80.dll
        • Size 541KB
        • SHA256 384aaee2a103f7ed5c3ba59d4fb2ba22313aaa1fbc5d232c29dbc14d38e0b528
        • MD5 SHA1 SHA512 SSDEEP

        msvcr80.dll

        • Path C:\Users\Admin\AppData\Local\Temp\msvcr80.dll
        • Size 617KB
        • SHA256 9382aaed2db19cd75a70e38964f06c63f19f63c9dfb5a33b0c2d445bb41b6e46
        • MD5 SHA1 SHA512 SSDEEP

        rfusclient.exe

        • Path C:\Users\Admin\AppData\Local\Temp\rfusclient.exe
        • Size 2.8MB
        • SHA256 579e5984ad5eb6e5e4b004acd01c95f609a1330f3900cd9851562eb4ac879197
        • MD5 SHA1 SHA512 SSDEEP

        rutserv.exe

        • Path C:\Users\Admin\AppData\Local\Temp\rutserv.exe
        • Size 3.2MB
        • SHA256 b06604ee55206b081a8378f771f3501f48df1c0023b1d6edcbc5f781aa521f57
        • MD5 SHA1 SHA512 SSDEEP

        rversionlib.dll

        • Path C:\Users\Admin\AppData\Local\Temp\rversionlib.dll
        • Size 310KB
        • SHA256 1eb88258b18b215b44620326e35c90a8589f384710e7b2d61abf4f59203bd82d
        • MD5 SHA1 SHA512 SSDEEP

        set.reg

        • Path C:\Users\Admin\AppData\Local\Temp\set.reg
        • Size 14KB
        • SHA256 7fe151bd0f7bd7a2f9558eeb4ed54e2070e2a9c233e6445a24a8891fd72d1f01
        • MD5 SHA1 SHA512 SSDEEP

        stop.js

        • Path C:\Users\Admin\AppData\Local\Temp\stop.js
        • Size 215B
        • SHA256 fe111b7ea4e14ab7ba5004aea52b10030e0282bb5c40d4ba55761a2c5be59406
        • MD5 SHA1 SHA512

        memory/1220-102-0x0000000000D70000-0x0000000000DC8000-memory.dmp

        memory/1220-106-0x0000000000D70000-0x0000000000DC8000-memory.dmp

        memory/1220-105-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/1944-139-0x0000000000920000-0x0000000000978000-memory.dmp

        memory/1944-117-0x0000000000920000-0x0000000000978000-memory.dmp

        memory/1944-138-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/2340-152-0x0000000000400000-0x000000000075E000-memory.dmp

        memory/2340-137-0x00000000007D0000-0x0000000000828000-memory.dmp

        memory/2340-153-0x00000000007D0000-0x0000000000828000-memory.dmp

        memory/2440-150-0x0000000000400000-0x000000000075E000-memory.dmp

        memory/2440-133-0x0000000000B10000-0x0000000000B68000-memory.dmp

        memory/2440-151-0x0000000000B10000-0x0000000000B68000-memory.dmp

        memory/3116-166-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/3116-154-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/3116-148-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/3116-160-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/3116-172-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/3116-121-0x0000000000860000-0x00000000008B8000-memory.dmp

        memory/3116-149-0x0000000000860000-0x00000000008B8000-memory.dmp

        memory/3488-146-0x0000000000400000-0x000000000075E000-memory.dmp

        memory/3488-147-0x0000000000880000-0x00000000008D8000-memory.dmp

        memory/3488-145-0x0000000000880000-0x00000000008D8000-memory.dmp

        memory/3508-111-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/3508-112-0x00000000008F0000-0x0000000000948000-memory.dmp

        memory/3508-110-0x00000000008F0000-0x0000000000948000-memory.dmp