Analysis
- max time kernel
152s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
03/03/2024, 10:39
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
virussign.com_ad06aca4eba37849db70c8525876521c.exe
Resource
win7-20240215-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
virussign.com_ad06aca4eba37849db70c8525876521c.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target virussign.com_ad06aca4eba37849db70c8525876521c.exe
- Size 132KB
- Sample240303-mp375ahc61
- SHA256 43e1a2d51b71fc0fb87e19187cc6598ec5bf37759f6e23a3937dbf9e135c1239
- MD5 ad06aca4eba37849db70c8525876521c
- SHA1 6a2e34ae0933293c4ec2ff580b7fe2d40f1e5e7c
- SHA512 176874a4500f1ac01fc1227a69c2761f1ac62c423da3daa29418e6ece954b989df95289ed9e87d4c390ad6aada1ad745ecf60e86b0e16589dacd2483f67ec637
- SSDEEP 3072:coCbZSukOY8hrJFVNM/N/5sfqDfwqxHeC:Fork6hrJ3NON/5sGNeC
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" virussign.com_ad06aca4eba37849db70c8525876521c.exe Set value (int) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cuiix.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation virussign.com_ad06aca4eba37849db70c8525876521c.exe - Executes dropped EXE 1 IoCs
pid Process 680 cuiix.exe - Adds Run key to start application 2 TTPs 51 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /x" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /z" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /l" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /H" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /t" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /T" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /v" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /p" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /o" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /D" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /L" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /h" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /V" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /S" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /W" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /M" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /B" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /P" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /G" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /w" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /n" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /C" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /X" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /K" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /Y" virussign.com_ad06aca4eba37849db70c8525876521c.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /N" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /i" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /a" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /q" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /m" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /b" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /d" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /Q" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /A" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /y" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /e" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /c" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /g" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /k" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /E" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /Z" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /U" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /s" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /F" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /R" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /r" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /j" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /u" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /f" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /I" cuiix.exe Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuiix = "C:\\Users\\Admin\\cuiix.exe /O" cuiix.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 772 virussign.com_ad06aca4eba37849db70c8525876521c.exe 772 virussign.com_ad06aca4eba37849db70c8525876521c.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe 680 cuiix.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 772 virussign.com_ad06aca4eba37849db70c8525876521c.exe 680 cuiix.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 772 wrote to memory of 680 772 virussign.com_ad06aca4eba37849db70c8525876521c.exe 86 PID 772 wrote to memory of 680 772 virussign.com_ad06aca4eba37849db70c8525876521c.exe 86 PID 772 wrote to memory of 680 772 virussign.com_ad06aca4eba37849db70c8525876521c.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\virussign.com_ad06aca4eba37849db70c8525876521c.exe"C:\Users\Admin\AppData\Local\Temp\virussign.com_ad06aca4eba37849db70c8525876521c.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:772 -
C:\Users\Admin\cuiix.exe"C:\Users\Admin\cuiix.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:680
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\cuiix.exe
- Size 132KB
- SHA256 2c81563c0c9f440c1ed6238e8d81366fc8bf36f8e16cf6ded88944807be54856
- MD5 bc4aa329c9d9fdc8977243e1b1df46cf
- SHA1 715338ad48934e621084d98da07f761eb2afaf5f
- SHA512 55f6c30c9c2a4314f4f40fe0df77254f54726dbe45e208f9df1917704c9b52f0e294ce5023f7ea2c87def5abc5d09ab579ac58c599e41be582b7d3665b145cf5
- SSDEEP 3072:cWCbZSukOY8hrJFVNM/N/5sfqDfwqByeG80:/ork6hrJ3NON/5sGceG
- MD5 SHA1 SHA512 SSDEEP