| File name: | rizzler.exe |
| Full analysis: | https://app.any.run/tasks/96dffda4-58b7-46d4-95fe-d1d8f88e0f9c |
| Verdict: | Malicious activity |
| Threats: | Chaos ransomware is a malware family known for its destructive capabilities and diverse variants. It first appeared in 2021 as a ransomware builder and later acted as a wiper. Unlike most ransomware strains that encrypt data to extort payment, early Chaos variants permanently corrupted files, while later versions adopted more conventional encryption techniques. |
| Analysis date: | July 30, 2024, 18:49:44 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | FC031CDD7FE84E5221305C87E6375E13 |
| SHA1: | 57F0E3CD6BF5DC09FBAACD0D9FCB7BF35AF8EED7 |
| SHA256: | 1E93D49CB048B0BF26DDD4CF728FC9E7900B33222DE596140CAC44DC41BC14F4 |
| SSDEEP: | 6144:IkGc9jqFqg0UtSIIIIIIIZIIIIIIIIIIIIIIIlnFf:Ik5qkg0Uc |
MALICIOUS
Using BCDEDIT.EXE to modify recovery options
- cmd.exe (PID: 5900)
Deletes shadow copies
- cmd.exe (PID: 5728)
- cmd.exe (PID: 5032)
Drops the executable file immediately after the start
- rizzler.exe (PID: 5608)
Create files in the Startup directory
- rizz.exe (PID: 6432)
CHAOS has been detected (YARA)
- rizz.exe (PID: 6432)
Steals credentials from Web Browsers
- rizz.exe (PID: 6432)
Modifies files in the Chrome extension folder
- rizz.exe (PID: 6432)
Actions looks like stealing of personal data
- rizz.exe (PID: 6432)
SUSPICIOUS
Reads security settings of Internet Explorer
- rizzler.exe (PID: 5608)
- rizz.exe (PID: 6432)
Reads the date of Windows installation
- rizzler.exe (PID: 5608)
- rizz.exe (PID: 6432)
Starts itself from another location
- rizzler.exe (PID: 5608)
Executable content was dropped or overwritten
- rizzler.exe (PID: 5608)
Executes as Windows Service
- wbengine.exe (PID: 5616)
- vds.exe (PID: 352)
- VSSVC.exe (PID: 5804)
Starts CMD.EXE for commands execution
- rizz.exe (PID: 6432)
Creates files like ransomware instruction
- rizz.exe (PID: 6432)
Start notepad (likely ransomware note)
- rizz.exe (PID: 6432)
Found regular expressions for crypto-addresses (YARA)
- rizz.exe (PID: 6432)
INFO
Reads the computer name
- rizzler.exe (PID: 5608)
- rizz.exe (PID: 6432)
Checks supported languages
- rizzler.exe (PID: 5608)
- rizz.exe (PID: 6432)
Creates files or folders in the user directory
- rizzler.exe (PID: 5608)
- rizz.exe (PID: 6432)
Process checks computer location settings
- rizzler.exe (PID: 5608)
- rizz.exe (PID: 6432)
Reads the machine GUID from the registry
- rizz.exe (PID: 6432)
Reads security settings of Internet Explorer
- WMIC.exe (PID: 1264)
- notepad.exe (PID: 348)
Creates files in the program directory
- rizz.exe (PID: 6432)
Checks proxy server information
- slui.exe (PID: 1044)
Reads the software policy settings
- slui.exe (PID: 1044)
Reads Microsoft Office registry keys
- rizz.exe (PID: 6432)
Create files in a temporary directory
- rizz.exe (PID: 6432)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (82.9) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (7.4) |
| .exe | | | Win32 Executable (generic) (5.1) |
| .exe | | | Generic Win/DOS Executable (2.2) |
| .exe | | | DOS Executable Generic (2.2) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2024:07:30 18:49:24+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 11 |
| CodeSize: | 83456 |
| InitializedDataSize: | 272384 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x165ce |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 0.0.0.0 |
| ProductVersionNumber: | 0.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| FileDescription: | |
| FileVersion: | 0.0.0.0 |
| InternalName: | rizzler.exe |
| LegalCopyright: | |
| OriginalFileName: | rizzler.exe |
| ProductVersion: | 0.0.0.0 |
| AssemblyVersion: | 0.0.0.0 |
Total processes
155
Monitored processes
19
Malicious processes
4
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 348 | "C:\WINDOWS\system32\NOTEPAD.EXE" C:\Users\admin\AppData\Roaming\README.txt | C:\Windows\System32\notepad.exe | — | rizz.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Notepad Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 352 | C:\WINDOWS\System32\vds.exe | C:\Windows\System32\vds.exe | — | services.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Virtual Disk Service Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1044 | C:\WINDOWS\System32\slui.exe -Embedding | C:\Windows\System32\slui.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Activation Client Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1164 | C:\WINDOWS\System32\vdsldr.exe -Embedding | C:\Windows\System32\vdsldr.exe | — | svchost.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Virtual Disk Service Loader Exit code: 0 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1264 | wmic shadowcopy delete | C:\Windows\System32\wbem\WMIC.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: WMI Commandline Utility Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3400 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3688 | bcdedit /set {default} bootstatuspolicy ignoreallfailures | C:\Windows\System32\bcdedit.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Boot Configuration Data Editor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4288 | wbadmin delete catalog -quiet | C:\Windows\System32\wbadmin.exe | cmd.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Command Line Interface for Microsoft® BLB Backup Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4792 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5032 | "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete | C:\Windows\System32\cmd.exe | — | rizz.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
15 752
Read events
15 674
Write events
58
Delete events
20
Modification events
| (PID) Process: | (5608) rizzler.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (5608) rizzler.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (5608) rizzler.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (5608) rizzler.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (6432) rizz.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (6432) rizz.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (6432) rizz.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (6432) rizz.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (3688) bcdedit.exe | Key: | HKEY_LOCAL_MACHINE\BCD00000000\Objects\{9dea862c-5cdd-4e70-acc1-f32b344d4795}\Elements\11000001 |
| Operation: | delete key | Name: | (default) |
Value: | |||
| (PID) Process: | (3688) bcdedit.exe | Key: | HKEY_LOCAL_MACHINE\BCD00000000\Description |
| Operation: | write | Name: | FirmwareModified |
Value: 1 | |||
Executable files
1
Suspicious files
573
Text files
873
Unknown types
1
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 6432 | rizz.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rizz.url | url | |
MD5:CCD9ADB41C9D7852BD84576FD8628459 | SHA256:4B7387EE4480578B9E1E56D9558D96349969B3476D3D4AB276213810B34189E3 | |||
| 6432 | rizz.exe | C:\$WinREAgent\Rollback.xml | binary | |
MD5:D1457B72C3FB323A2671125AEF3EAB5D | SHA256:8A8DE823D5ED3E12746A62EF169BCF372BE0CA44F0A1236ABC35DF05D96928E1 | |||
| 6432 | rizz.exe | C:\$WinREAgent\Backup\ReAgent.xml | binary | |
MD5:D1457B72C3FB323A2671125AEF3EAB5D | SHA256:8A8DE823D5ED3E12746A62EF169BCF372BE0CA44F0A1236ABC35DF05D96928E1 | |||
| 6432 | rizz.exe | C:\$WinREAgent\Backup\location.txt | binary | |
MD5:D1457B72C3FB323A2671125AEF3EAB5D | SHA256:8A8DE823D5ED3E12746A62EF169BCF372BE0CA44F0A1236ABC35DF05D96928E1 | |||
| 6432 | rizz.exe | C:\$WinREAgent\README.txt | text | |
MD5:112B5F9570B63D4B6DD4FD5E592F20AF | SHA256:37DEE262DA5BB8982909A2D9A13804D14E0477EDC90363221603D4CA152218C9 | |||
| 6432 | rizz.exe | C:\$WinREAgent\Rollback.xml.rizz | binary | |
MD5:1A107439C50729D4AD4CD95129D1D2E6 | SHA256:AF16E1650CA169846EB0E47E3CDA87D3A9EC320173D9F6BA26A8099B3837EADA | |||
| 6432 | rizz.exe | C:\found.000\dir0001.chk\WmiApRpl.ini.rizz | binary | |
MD5:D3CA3E8FC5E8A64FDCDC0A2A90ECE1A2 | SHA256:76AF2970EF07E3FE0FA8377A105D13E193457CF7F668C23A3D8B8A426836323D | |||
| 6432 | rizz.exe | C:\$WinREAgent\RollbackInfo.ini | binary | |
MD5:D1457B72C3FB323A2671125AEF3EAB5D | SHA256:8A8DE823D5ED3E12746A62EF169BCF372BE0CA44F0A1236ABC35DF05D96928E1 | |||
| 6432 | rizz.exe | C:\$WinREAgent\RollbackInfo.ini.rizz | binary | |
MD5:71AEB2FC9DA6F05C33C491BC8A1D3C4F | SHA256:01C43486C500812BB9C04C3333A85919638D6365553E900B7EA10DF5EA008C37 | |||
| 6432 | rizz.exe | C:\$WinREAgent\Backup\ReAgent.xml.rizz | binary | |
MD5:C06C08CB67CE2FFBA22932E783DFB85A | SHA256:600486DF8BD2C74A3EE3087B4E9825B51F799E49FC7966B22931C8104B35B90D | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
25
DNS requests
11
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | POST | 500 | 40.91.76.224:443 | https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail | unknown | xml | 512 b | — |
— | — | POST | 204 | 184.86.251.14:443 | https://www.bing.com/threshold/xls.aspx | unknown | — | — | — |
— | — | GET | 200 | 204.79.197.222:443 | https://fp.msedge.net/r.gif?MonitorID=asgw&rid=31772c9aa23ecb885adf9342e987ec9e&w3c=true&prot=https:&v=20190506&DATA=[{%22RequestID%22:%22t-ring-fdv2.msedge.net%22,%22Object%22:%22trans.gif%22,%22Conn%22:%22cold%22,%22Result%22:-1,%22T%22:1},{%22RequestID%22:%22a-ring-fallback.msedge.net%22,%22Object%22:%22trans.gif%22,%22Conn%22:%22cold%22,%22Result%22:-1,%22T%22:1},{%22RequestID%22:%22fp-afd-nocache-ccp.azureedge.net%22,%22Object%22:%22trans.gif%22,%22Conn%22:%22cold%22,%22Result%22:-1,%22T%22:1}] | unknown | image | 7 b | — |
— | — | POST | 200 | 20.42.65.88:443 | https://self.events.data.microsoft.com/OneCollector/1.0/ | unknown | binary | 9 b | — |
— | — | POST | 204 | 184.86.251.7:443 | https://www.bing.com/threshold/xls.aspx | unknown | — | — | — |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
— | — | 131.253.33.254:443 | a-ring-fallback.msedge.net | MICROSOFT-CORP-MSN-AS-BLOCK | US | unknown |
— | — | 2.23.209.177:443 | www.bing.com | Akamai International B.V. | GB | unknown |
2472 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
484 | slui.exe | 20.83.72.98:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
6012 | MoUsoCoreWorker.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
2908 | RUXIMICS.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
3952 | svchost.exe | 239.255.255.250:1900 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
488 | slui.exe | 20.83.72.98:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
t-ring-fdv2.msedge.net |
| unknown |
a-ring-fallback.msedge.net |
| unknown |
www.bing.com |
| whitelisted |
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
fp-afd-nocache-ccp.azureedge.net |
| whitelisted |
self.events.data.microsoft.com |
| whitelisted |
fp.msedge.net |
| whitelisted |
activation-v2.sls.microsoft.com |
| whitelisted |
Threats
Process | Message |
|---|---|
wbadmin.exe | Invalid parameter passed to C runtime function.
|