Analysis Overview
SHA256
cb5dd6a6733a571886e16cc1e9fbaabfcf31979f8b02a8932a1f5fb2d45cf5b1
Threat Level: Known bad
The file ViennaExec.exe was found to be: Known bad.
Malicious Activity Summary
Xworm
Detect Xworm Payload
AgentTesla
AgentTesla payload
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Enumerates system info in registry
Suspicious use of AdjustPrivilegeToken
Delays execution with timeout.exe
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-28 11:51
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-28 11:51
Reported
2024-05-28 11:54
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
153s
Command Line
Signatures
AgentTesla
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Xworm
AgentTesla payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ViennaExec.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Viena-Exec.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tt.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Viena-Exec.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tt.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tt.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Viena-Exec = "C:\\Users\\Admin\\AppData\\Roaming\\Viena-Exec.exe" | C:\Users\Admin\AppData\Local\Temp\Viena-Exec.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS | C:\Users\Admin\AppData\Local\Temp\tt.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer | C:\Users\Admin\AppData\Local\Temp\tt.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion | C:\Users\Admin\AppData\Local\Temp\tt.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Viena-Exec.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tt.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tt.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tt.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tt.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\ViennaExec.exe
"C:\Users\Admin\AppData\Local\Temp\ViennaExec.exe"
C:\Users\Admin\AppData\Local\Temp\tt.exe
"C:\Users\Admin\AppData\Local\Temp\tt.exe"
C:\Users\Admin\AppData\Local\Temp\Viena-Exec.exe
"C:\Users\Admin\AppData\Local\Temp\Viena-Exec.exe"
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Viena-Exec" /tr "C:\Users\Admin\AppData\Roaming\Viena-Exec.exe"
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /delete /f /tn "Viena-Exec"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp1BFF.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 131.253.33.237:443 | g.bing.com | tcp |
| US | 13.107.22.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.22.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| BE | 88.221.83.218:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 218.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | blood-sticker.gl.at.ply.gg | udp |
| US | 147.185.221.19:65461 | blood-sticker.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 19.221.185.147.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 147.185.221.19:65461 | blood-sticker.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.24.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.201.50.20.in-addr.arpa | udp |
Files
memory/3164-0-0x00007FFF67033000-0x00007FFF67035000-memory.dmp
memory/3164-1-0x0000000000CD0000-0x0000000000DE6000-memory.dmp
memory/3164-13-0x00007FFF67030000-0x00007FFF67AF1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tt.exe
| MD5 | a78e0eed0519f40f484bb90140094421 |
| SHA1 | 27bec5491e51282929d231045b3afeb64a6ad870 |
| SHA256 | 3b19ffaef69c19ce4b3a4a8b94e2117d4437544286009b357661312672a15e3b |
| SHA512 | 301c29e12e6ebe37fe266a5e16e3b7d779b22617fc8cc778395bd7024840cfc06024f09b989d93fe5f92f53a62f129bef687b1ff0b8502ff20fb195d8b8ec2e5 |
memory/4588-20-0x0000000074EAE000-0x0000000074EAF000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Viena-Exec.exe
| MD5 | 5eb6e01db54df58a5a7de27e767ffaf5 |
| SHA1 | ec26ea621d1ea0058674f7df9dac96c971a92a03 |
| SHA256 | 3228ad175ceb3ca939cc22560998070a65fe599b0061fc3c597e98988c6bc09f |
| SHA512 | bbabccd56e2694923ab50d10df57a382dafb0a27415af4c698938166512767179a759cacb5e2704ff0e028c37b9cbcb7374719e79386041d31fcc839990927b5 |
memory/3228-32-0x00007FFF67033000-0x00007FFF67035000-memory.dmp
memory/3164-33-0x00007FFF67030000-0x00007FFF67AF1000-memory.dmp
memory/4588-35-0x00000000006F0000-0x0000000000762000-memory.dmp
memory/3228-34-0x0000000000920000-0x0000000000930000-memory.dmp
memory/4588-36-0x00000000056F0000-0x0000000005C94000-memory.dmp
memory/4588-37-0x00000000051E0000-0x0000000005272000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Guna.UI2.dll
| MD5 | c19e9e6a4bc1b668d19505a0437e7f7e |
| SHA1 | 73be712aef4baa6e9dabfc237b5c039f62a847fa |
| SHA256 | 9ac8b65e5c13292a8e564187c1e7446adc4230228b669383bd7b07035ab99a82 |
| SHA512 | b6cd0af436459f35a97db2d928120c53d3691533b01e4f0e8b382f2bd81d9a9a2c57e5e2aa6ade9d6a1746d5c4b2ef6c88d3a0cf519424b34445d0d30aab61de |
memory/4588-41-0x0000000005CA0000-0x0000000005EB4000-memory.dmp
memory/4588-42-0x00000000053A0000-0x00000000053B0000-memory.dmp
memory/4588-43-0x0000000005EC0000-0x0000000005ECA000-memory.dmp
memory/3228-47-0x000000001B570000-0x000000001B580000-memory.dmp
memory/4588-48-0x0000000074EAE000-0x0000000074EAF000-memory.dmp
memory/4588-49-0x00000000053A0000-0x00000000053B0000-memory.dmp
memory/3228-50-0x000000001C2E0000-0x000000001C2EA000-memory.dmp
memory/3228-51-0x000000001B570000-0x000000001B580000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp1BFF.tmp.bat
| MD5 | bb95bfef9033fd0645387fac7cb037d9 |
| SHA1 | 0dd6866f6c1c6c7272a501c2d0b5fefa33d7c76f |
| SHA256 | 76776f7e8a07f9d22a9db9d473c23f17cddddbc8eb32587a411703fe7e8e7936 |
| SHA512 | 5a7a0c415aea9aa877bcca09d2e02e5b73b7bbd38729aa9ca305c36e2ace5b152c3d50a39aa0c102c061f7880aa85dd893d636735b601bca9e5047df3ad39be5 |