Analysis
- user interaction
yes - max time kernel
899s - max time network
900s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-fr - resource tags
- submitted
26/10/2026, 17:06
General
- Target ofx.exe
- Size 591KB
- Sample261026-vmncwsft21
- SHA256 f5a513261dc00ac50fbb0320939710b91d0e1c6c7102f4b68662867c6e589624
Malware Config
Signatures
- Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs
- Modifies Windows Defender Real-time Protection settings 3 TTPs 7 IoCs
- Windows security bypass 2 TTPs 3 IoCs
- Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
- Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
- Modifies boot configuration data using bcdedit 1 TTPs 3 IoCs
- Renames multiple (1708) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Deletes backup catalog 3 TTPs 1 IoCs
Uses wbadmin.exe to inhibit system recovery.
- Disables use of System Restore points 1 TTPs
- Looks for VMWare services registry key. 1 TTPs 1 IoCs
- Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Windows security modification 2 TTPs 4 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Drops file in System32 directory 2 IoCs
- Sets desktop wallpaper using registry 2 TTPs 1 IoCs
- Drops file in Windows directory 5 IoCs
- Browser Information Discovery 1 TTPs
Enumerate browser information.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Disables Windows logging functionality 2 TTPs
Changes registry settings to disable Windows Event logging.
- Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
- Modifies Control Panel 5 IoCs
- Modifies registry class 9 IoCs
- Opens file in notepad (likely ransom note) 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 7 IoCs
- Suspicious use of WriteProcessMemory 7 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 service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\ofx.exe"C:\Users\Admin\AppData\Local\Temp\ofx.exe"1⤵
- Modifies Windows Defender DisableAntiSpyware settings
- Modifies Windows Defender Real-time Protection settings
- Windows security bypass
- Enumerates VirtualBox registry keys
- Looks for VMWare services registry key.
- Creates a file in the Startup directory
- Windows security modification
- Adds Run key to start application
- Sets desktop wallpaper using registry
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- Checks processor information in registry
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\reagentc.exe"C:\Windows\system32\reagentc.exe" /disable2⤵
- Drops file in System32 directory
- Drops file in Windows directory
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C:\Windows\system32\bcdedit.exe"C:\Windows\system32\bcdedit.exe" /set {default} recoveryenabled No2⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exe"C:\Windows\system32\bcdedit.exe" /set {default} bootstatuspolicy ignoreallfailures2⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exe"C:\Windows\system32\bcdedit.exe" /set {current} recoveryenabled No2⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\vssadmin.exe"C:\Windows\system32\vssadmin.exe" delete shadows /all /quiet2⤵
- Interacts with shadow copies
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C:\Windows\system32\wbadmin.exe"C:\Windows\system32\wbadmin.exe" delete catalog -quiet2⤵
- Deletes backup catalog
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\README_RESTORE.txt2⤵
- Modifies registry class
- Opens file in notepad (likely ransom note)
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s BDESVC1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
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C:\Users\Admin\AppData\Local\Microsoft\Windows\Themes\41211331d5af6089.exeC:\Users\Admin\AppData\Local\Microsoft\Windows\Themes\41211331d5af6089.exe1⤵
- Executes dropped EXE
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
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C:\Windows\System32\SecurityHealthHost.exe\\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding1⤵
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
2Windows Service
2Defense Evasion
Direct Volume Access
1Impair Defenses
5Disable or Modify Tools
5Indicator Removal
3File Deletion
3Modify Registry
7Virtualization/Sandbox Evasion
2Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
data_1.ofx
index.ofx
CURRENT.ofx
MANIFEST-000001.ofx
data_0.ofx
data_2.ofx
data_3.ofx
edbres00002.jrs.ofx
winword.exe.db.ofx
41211331d5af6089.exe
places.sqlite-shm.ofx
README_RESTORE.txt
BackupDeny.wax.ofx
BlockInitialize.asp.ofx
CloseHide.ogg.ofx
ReAgent.xml
memory/5292-0-0x0000024277630000-0x0000024277631000-memory.dmp
memory/5292-2-0x0000024277630000-0x0000024277631000-memory.dmp
memory/5292-5-0x00007FFF3DCBF000-0x00007FFF3DCC0000-memory.dmp
memory/5292-1-0x00007FFF3DB60000-0x00007FFF3DDC3000-memory.dmp