Analysis Overview
SHA256
17a507cce4066c4be7db53d64d9a9e11dfecfd4f2411393690506e591b5895cd
Threat Level: Shows suspicious behavior
The file 7z2401-x64.exe was found to be: Shows suspicious behavior.
Malicious Activity Summary
Executes dropped EXE
Registers COM server for autorun
Checks installed software on the system
Drops file in Program Files directory
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-02 16:29
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-02 16:29
Reported
2024-03-02 16:32
Platform
win10v2004-20240226-en
Max time kernel
92s
Max time network
113s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\7-Zip\7zFM.exe | N/A |
Registers COM server for autorun
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32 | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ = "C:\\Program Files\\7-Zip\\7-zip.dll" | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ThreadingModel = "Apartment" | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
Checks installed software on the system
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files\7-Zip\Lang\sv.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\az.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\es.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\hr.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\kaa.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\kk.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\sa.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ky.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\mn.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ps.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\7z.exe | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\en.ttt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\id.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ja.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ro.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\vi.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\co.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\fy.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\tt.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\7-zip.chm | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\bg.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\mng2.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\pl.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\readme.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ar.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\lv.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\tg.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\io.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ku.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\sl.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\fi.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\sr-spc.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ta.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\7z.sfx | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\History.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\gu.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\hy.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\is.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\nn.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ug.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\pt-br.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\de.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\eo.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\et.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\lij.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\mr.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ne.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\eu.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ku-ckb.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ru.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\sk.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\af.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ca.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\sw.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\va.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\br.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\fa.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ko.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\uz-cyrl.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\7-zip32.dll | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\hi.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ka.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\mng.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\nl.txt | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{23170F69-40C1-278A-1000-000100020000}\ = "7-Zip Shell Extension" | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\7-Zip\ = "{23170F69-40C1-278A-1000-000100020000}" | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\7-Zip | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\7-Zip | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{23170F69-40C1-278A-1000-000100020000} | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32 | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ = "C:\\Program Files\\7-Zip\\7-zip.dll" | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\DragDropHandlers\7-Zip\ = "{23170F69-40C1-278A-1000-000100020000}" | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\7-Zip\ = "{23170F69-40C1-278A-1000-000100020000}" | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32 | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{23170F69-40C1-278A-1000-000100020000} | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ThreadingModel = "Apartment" | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\7-Zip | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\7-Zip\ = "{23170F69-40C1-278A-1000-000100020000}" | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\DragDropHandlers\7-Zip | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ = "C:\\Program Files\\7-Zip\\7-zip32.dll" | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ThreadingModel = "Apartment" | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{23170F69-40C1-278A-1000-000100020000}\ = "7-Zip Shell Extension" | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\7-Zip | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\7-Zip\ = "{23170F69-40C1-278A-1000-000100020000}" | C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\7-Zip\7zFM.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeRestorePrivilege | N/A | C:\Program Files\7-Zip\7zFM.exe | N/A |
| Token: 35 | N/A | C:\Program Files\7-Zip\7zFM.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe
"C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe"
C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 45.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
Files
C:\Program Files\7-Zip\7zFM.exe
| MD5 | 6156ebaea891ddbfcb1187f628ec7577 |
| SHA1 | 778fd5d5dec21f95c5aa554567e06da8295b9a47 |
| SHA256 | 4853947e14bf30ab40702c34f80fb113c45619a73f89a938f2284c786e35c9fe |
| SHA512 | ed166095ceb46ff77e1081263aea03cb97b5d244a7e4060b6b37c847fd496a7e577f297846414ff130e01484f44f9da2566e2572c6cd69e9b419c311799a511a |