Analysis
- max time kernel
148s - max time network
134s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
16/08/2026, 18:15
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
7z26.02-zstd-x64.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
7z26.02-zstd-x64.exe
Resource
win11ltsc2024-20260710-en
windows11-ltsc_2024-x64
5 signatures
150 seconds
General
- Target 7z26.02-zstd-x64.exe
- Size 3.2MB
- Sample260816-wwac3afb53
- SHA256 22dc4608d911d7c831437b969db66a42d0477cd3f5d93987cae9f59774857fc1
- MD5 05ac2dda58ff183804d37a7871b458bd
- SHA1 27f24ab0d83b42981fb8067d6a30f0ed09f169da
- SHA512 949ae79737232aff79deaf596e02ae378dec9b17c63a631c2e26f76d9ecfe2e5fd1c5dbf93f479ea765da276ce349ff46d9b133ef18490aedc4a322332fe8c61
- SSDEEP 49152:AvRBV1SqSp7sCMMkWYqt3Fy+ho4jtp5Q4i+PljeBMJTl3/bsu213B98w8QT:gBDNSp7dM+hoM54AVeiZEOS
- TLSH T142F5338772E930F0E4A39175A56996067FB2F571A324DFEB4AC867191D632C0BC3DB20
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\7-Zip-Zstandard\7z.sfx 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\an.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\ca.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\fi.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\mn.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\sk.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\sv.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\7za.exe 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\fi.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\is.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\ne.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\sq.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\sr-spc.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\sr-spl.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\th.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\kk.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\ms.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\sq.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\tk.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\ug.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\vi.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\co.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\cs.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\kaa.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\mk.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\sw.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\uz-cyrl.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\readme.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\et.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\ga.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\gl.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\nb.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\nn.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\si.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\th.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\tr.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\7z.exe 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\7zG.exe 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\7zG.exe 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\af.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\ja.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\pl.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\pt.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\sv.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\br.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\7-zip.dll 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\7-zip32.dll 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\7za.dll 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\da.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\fy.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\sk.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\ug.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\7zFM.exe 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\7zxa.dll 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\eo.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\fr.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\sa.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\tk.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\7z.exe 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\ar.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\ar.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\ko.txt 7z26.02-zstd-x64.exe File created C:\Program Files\7-Zip-Zstandard\Lang\ky.txt 7z26.02-zstd-x64.exe File opened for modification C:\Program Files\7-Zip-Zstandard\Lang\nn.txt 7z26.02-zstd-x64.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 20 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{23170F69-20BB-278A-1000-000100020000}\ = "7-Zip Shell Extension" 7z26.02-zstd-x64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{23170F69-20BB-278A-1000-000100020000}\InprocServer32 7z26.02-zstd-x64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{23170F69-20BB-278A-1000-000100020000} 7z26.02-zstd-x64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{23170F69-20BB-278A-1000-000100020000}\ = "7-Zip Shell Extension" 7z26.02-zstd-x64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\7-Zip-Zstandard 7z26.02-zstd-x64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{23170F69-20BB-278A-1000-000100020000}\InprocServer32\ThreadingModel = "Apartment" 7z26.02-zstd-x64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\7-Zip-Zstandard\ = "{23170F69-20BB-278A-1000-000100020000}" 7z26.02-zstd-x64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\7-Zip-Zstandard 7z26.02-zstd-x64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\7-Zip-Zstandard 7z26.02-zstd-x64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\7-Zip-Zstandard 7z26.02-zstd-x64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\7-Zip-Zstandard\ = "{23170F69-20BB-278A-1000-000100020000}" 7z26.02-zstd-x64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\7-Zip-Zstandard\ = "{23170F69-20BB-278A-1000-000100020000}" 7z26.02-zstd-x64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{23170F69-20BB-278A-1000-000100020000}\InprocServer32\ = "C:\\Program Files\\7-Zip-Zstandard\\7-zip32.dll" 7z26.02-zstd-x64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{23170F69-20BB-278A-1000-000100020000}\InprocServer32 7z26.02-zstd-x64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\DragDropHandlers\7-Zip-Zstandard\ = "{23170F69-20BB-278A-1000-000100020000}" 7z26.02-zstd-x64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{23170F69-20BB-278A-1000-000100020000}\InprocServer32\ = "C:\\Program Files\\7-Zip-Zstandard\\7-zip.dll" 7z26.02-zstd-x64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{23170F69-20BB-278A-1000-000100020000}\InprocServer32\ThreadingModel = "Apartment" 7z26.02-zstd-x64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Folder\ShellEx\ContextMenuHandlers\7-Zip-Zstandard\ = "{23170F69-20BB-278A-1000-000100020000}" 7z26.02-zstd-x64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\DragDropHandlers\7-Zip-Zstandard 7z26.02-zstd-x64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{23170F69-20BB-278A-1000-000100020000} 7z26.02-zstd-x64.exe