Analysis
- max time kernel
0s - max time network
121s - platform
windows7_x64 - resource
win7-20231215-en - resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system - submitted
08/01/2024, 03:37
Behavioral task
behavioral1
Sample
4a55fc425637bc0bf72b88ab7d44bf0a.exe
Resource
win7-20231215-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
4a55fc425637bc0bf72b88ab7d44bf0a.exe
Resource
win10v2004-20231215-en
7 signatures
150 seconds
General
- Target 4a55fc425637bc0bf72b88ab7d44bf0a.exe
- Size 9KB
- Sample240108-d6v4eaadgn
- SHA256 5f05c03b799f023c5faf489b10340c1a4f5f0bb256f9bf0120ab68bea5c6bb60
- MD5 4a55fc425637bc0bf72b88ab7d44bf0a
- SHA1 53ae5632e2e869780dbeac20b7c0400fa08d508f
- SHA512 81f31754df4c92b45bda744487c5f08cee4f50b09af9c2f98bebe5d038c61af021cd3103e5bb72245fe9d659ce669ea3ac0ac309d71d6c64985cddbf16751436
- SSDEEP 192:/TessR4hfK0BNawekFDpfuVBuiBBiGo7MapygakmaE3:/TeMfZBN9nsyiBBV8JHW3
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
-
resource yara_rule behavioral1/memory/3048-0-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/3048-134-0x0000000000400000-0x000000000040B000-memory.dmp upx - Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunServices\*Janis = "c:\\Recycled\\Janis.exe" 4a55fc425637bc0bf72b88ab7d44bf0a.exe Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows\CurrentVersion\Run\*Ruckenbrod = "c:\\Recycled\\pga\\Ruckenbrod.exe" 4a55fc425637bc0bf72b88ab7d44bf0a.exe Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows\CurrentVersion\Run\*Command = "command.com /c copy /y c:\\Windows\\Data.dat c:\\WINDOWS\\SYSTEM32\\scanregx.exe" 4a55fc425637bc0bf72b88ab7d44bf0a.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Vshwin32EXE = "c:\\WINDOWS\\SYSTEM32\\scanregx.exe" 4a55fc425637bc0bf72b88ab7d44bf0a.exe - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Control Panel\Desktop\Wallpaper = "c:\\WINDOWS\\wallpaper.html" 4a55fc425637bc0bf72b88ab7d44bf0a.exe - Drops file in Windows directory 7 IoCs
description ioc Process File created \??\c:\Windows\Favorites\Tips.scr 4a55fc425637bc0bf72b88ab7d44bf0a.exe File created \??\c:\Windows\startm~1\programs\startup\TuneUp.exe 4a55fc425637bc0bf72b88ab7d44bf0a.exe File created \??\c:\Windows\Data.dat 4a55fc425637bc0bf72b88ab7d44bf0a.exe File opened for modification \??\c:\Windows\Data.dat 4a55fc425637bc0bf72b88ab7d44bf0a.exe File created \??\c:\WINDOWS\scanregw.exe 4a55fc425637bc0bf72b88ab7d44bf0a.exe File opened for modification \??\c:\WINDOWS\scanregw.exe 4a55fc425637bc0bf72b88ab7d44bf0a.exe File created \??\c:\WINDOWS\wallpaper.html 4a55fc425637bc0bf72b88ab7d44bf0a.exe - Modifies Control Panel 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Control Panel\Desktop 4a55fc425637bc0bf72b88ab7d44bf0a.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Desktop\General 4a55fc425637bc0bf72b88ab7d44bf0a.exe Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Internet Explorer\Desktop\General\BackupWallpaper = "c:\\WINDOWS\\wallpaper.html" 4a55fc425637bc0bf72b88ab7d44bf0a.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3048 4a55fc425637bc0bf72b88ab7d44bf0a.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\4a55fc425637bc0bf72b88ab7d44bf0a.exe"C:\Users\Admin\AppData\Local\Temp\4a55fc425637bc0bf72b88ab7d44bf0a.exe"1⤵
- Adds Run key to start application
- Sets desktop wallpaper using registry
- Drops file in Windows directory
- Modifies Control Panel
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3048
-
C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE"C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE" -Embedding1⤵PID:2752