Analysis
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max time kernel
70s -
max time network
44s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
19/10/2022, 15:38
Behavioral task
behavioral1
Sample
5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe
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Size
33KB
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MD5
a2193dd3315d5fc78f32baf753c4cea0
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SHA1
916b6fc754ff9efd15b19602997e6c5e72c91e65
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SHA256
5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f
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SHA512
c177872f34b7282a69637283ba9fc00ff0d5be1ab2da23f32b744266781a6aa2c7dd643cc119d4f1df7de43d556b4aec2fcdd0f04984ac267e4c3dcdfd50a1a6
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SSDEEP
768:OWMRMO8nnF1Yt/ybUZkFPd8wpS9hucD5+Kwp32:OL8nM5ybQ/4YhT3wM
Score
8/10
Malware Config
Signatures
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Adds policy Run key to start application 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\userun32 = "c:\\windows\\userun32.exe" 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\internat = "c:\\windows\\internat.exe" 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\internat\ImagePath = "c:\\windows\\internat.exe" 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe -
resource yara_rule behavioral1/memory/112-55-0x0000000000400000-0x000000000049D000-memory.dmp upx -
Adds Run key to start application 2 TTPs 6 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunServices\internat = "c:\\windows\\internat.exe" 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\lsass32 = "c:\\windows\\lsass32.exe" 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\internat = "c:\\windows\\internat.exe" 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunServices 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe -
Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\m: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\k: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\i: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\f: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\z: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\t: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\s: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\r: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\p: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\l: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\g: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\x: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\v: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\q: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\o: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\n: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\h: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\e: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\y: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\w: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\u: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened (read-only) \??\j: 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created \??\c:\windows\SysWOW64\regedit.exe 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe -
Drops file in Windows directory 13 IoCs
description ioc Process File opened for modification \??\c:\windows\lsass32.exe 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File created \??\c:\windows\userun32.exe 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened for modification \??\c:\windows\calc.exe 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File created \??\c:\windows\Ãëàâíîå ìåíþ\Ïðîãðàììû\Àâòîçàãðóçêà\msoffice.scr 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File created \??\c:\windows\Start Menu\Programs\Startup\msoffice.scr 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened for modification \??\c:\windows\internat.exe 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File created \??\c:\windows\lsass32.exe 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened for modification \??\c:\windows\userun32.exe 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File created \??\c:\windows\calc.exe 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File created \??\c:\windows\regedit2.exe 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened for modification \??\c:\windows\regedit2.exe 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File opened for modification \??\c:\windows\mui\modem.sys 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe File created \??\c:\windows\internat.exe 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe -
Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6ABE4A8-C73A-305A-BFEF-E4FA2BC9D8A9} 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6ABE4A8-C73A-305A-BFEF-E4FA2BC9D8A9}\ThisEXE = "c:\\users\\admin\\appdata\\local\\temp\\5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe" 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6ABE4A8-C73A-305A-BFEF-E4FA2BC9D8A9}\VerProg = "113" 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 112 5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe"C:\Users\Admin\AppData\Local\Temp\5f5a99c98fa89a4394118d5cd189d84a8cceb4896af778490a95fde98a41c77f.exe"1⤵
- Adds policy Run key to start application
- Sets service image path in registry
- Adds Run key to start application
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:112