Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-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.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 12 IoCs
  • Drops file in System32 directory 34 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 key 1 TTPs 2 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 3 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⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2196
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\stop.js"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2752
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
        3⤵
        • Loads dropped DLL
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2640
        • 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:1712
        • 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:2676
        • 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:848
        • C:\Windows\SysWOW64\reg.exe
          reg delete "HKLM\SYSTEM\Remote Manipulator System" /f
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2360
        • 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:2060
        • 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:2208
        • 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:1672
        • 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:648
        • C:\Windows\SysWOW64\net.exe
          net stop rserver3
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1884
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop rserver3
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2384
        • 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:2152
        • 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:2268
        • 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:1980
        • 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:868
        • 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:2164
        • C:\Windows\SysWOW64\attrib.exe
          attrib -s -h "C:\Windows\system32\rserver30"
          4⤵
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:1988
        • C:\Windows\SysWOW64\attrib.exe
          attrib -s -h "C:\Windows\SysWOW64\rserver30"
          4⤵
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:924
        • 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:876
        • 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:1516
        • C:\Windows\SysWOW64\net.exe
          net stop Telnet
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1728
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop Telnet
            5⤵
            • System Location Discovery: System Language Discovery
            PID:1560
        • C:\Windows\SysWOW64\sc.exe
          sc config tlntsvr start= disabled
          4⤵
          • Launches sc.exe
          • System Location Discovery: System Language Discovery
          PID:1784
        • C:\Windows\SysWOW64\net.exe
          net stop "Service Host Controller"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1544
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Service Host Controller"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:1680
        • C:\Windows\SysWOW64\net.exe
          net user HelpAssistant /delete
          4⤵
          • Indicator Removal: Network Share Connection Removal
          • System Location Discovery: System Language Discovery
          PID:3044
          • 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:1112
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /delete /tn security /f
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1740
        • 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:1720
        • 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:2088
        • 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:1852
        • 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:2980
        • 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:3024
        • 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:2552
        • 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:996
        • 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:1940
        • 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:2424
        • 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:2308
        • 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:2512
        • 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:3040
        • C:\Windows\SysWOW64\reg.exe
          reg delete "HKLM\System\CurrentControlSet\Services\RServer3" /f
          4⤵
          • System Location Discovery: System Language Discovery
          PID:296
        • 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:2780
        • C:\Windows\SysWOW64\catroot3\rutserv.exe
          "rutserv.exe" /firewall
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          PID:2860
        • C:\Windows\SysWOW64\regedit.exe
          regedit /s set.reg
          4⤵
          • System Location Discovery: System Language Discovery
          • Runs .reg file with regedit
          PID:2720
        • 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:1996
        • 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:1944
        • 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:1536
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\7ZSfx000.cmd" "
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2160
  • C:\Windows\SysWOW64\catroot3\rutserv.exe
    C:\Windows\SysWOW64\catroot3\rutserv.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2924
    • 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:2272
      • 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:864
    • 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:2988

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/864-185-0x0000000000400000-0x000000000075E000-memory.dmp

        memory/864-186-0x0000000000230000-0x0000000000288000-memory.dmp

        memory/1996-157-0x0000000000840000-0x0000000000898000-memory.dmp

        memory/1996-177-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/1996-178-0x0000000000840000-0x0000000000898000-memory.dmp

        memory/2272-202-0x0000000000230000-0x0000000000288000-memory.dmp

        memory/2272-189-0x0000000000400000-0x000000000075E000-memory.dmp

        memory/2272-190-0x0000000000230000-0x0000000000288000-memory.dmp

        memory/2780-142-0x00000000002C0000-0x0000000000318000-memory.dmp

        memory/2780-141-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/2780-138-0x00000000002C0000-0x0000000000318000-memory.dmp

        memory/2860-148-0x0000000000230000-0x0000000000288000-memory.dmp

        memory/2860-149-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/2860-150-0x0000000000230000-0x0000000000288000-memory.dmp

        memory/2924-187-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/2924-160-0x00000000001C0000-0x0000000000218000-memory.dmp

        memory/2924-188-0x00000000001C0000-0x0000000000218000-memory.dmp

        memory/2924-193-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/2924-199-0x0000000000400000-0x00000000007C6000-memory.dmp

        memory/2924-218-0x00000000001C0000-0x0000000000218000-memory.dmp

        memory/2988-192-0x0000000000760000-0x00000000007B8000-memory.dmp

        memory/2988-173-0x0000000000760000-0x00000000007B8000-memory.dmp

        memory/2988-197-0x0000000000400000-0x000000000075E000-memory.dmp

        memory/2988-191-0x0000000000400000-0x000000000075E000-memory.dmp

        memory/2988-215-0x0000000000400000-0x000000000075E000-memory.dmp