Malware Analysis Report

2025-08-11 01:05

Sample ID 240302-tzg6zafc79
Target 7z2401-x64.exe
SHA256 17a507cce4066c4be7db53d64d9a9e11dfecfd4f2411393690506e591b5895cd
Tags
discovery persistence
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

17a507cce4066c4be7db53d64d9a9e11dfecfd4f2411393690506e591b5895cd

Threat Level: Shows suspicious behavior

The file 7z2401-x64.exe was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery persistence

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

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

"C:\Users\Admin\AppData\Local\Temp\7z2401-x64.exe"

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

persistence
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

discovery

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