Analysis
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max time kernel
170s -
max time network
171s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03/12/2022, 01:07
Static task
static1
Behavioral task
behavioral1
Sample
5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe
Resource
win7-20220812-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe
Resource
win10v2004-20220812-en
4 signatures
150 seconds
General
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Target
5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe
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Size
96KB
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MD5
a0783ba848fce8a7856ff011a8a95cf0
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SHA1
8e87394928e3625116d1a64ce8aa762faf87f392
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SHA256
5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d
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SHA512
8ea920299720532c302e4d30a812491cfc0c7de9793fc60bf203ba2c8dc72fbf3f4fc32c401fbeb720e019d0da6a8859b95fdc7475a5f04542a2d6913071f038
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SSDEEP
1536:OcfUX3j6mQ6SGhaNZr6mKpX5tCZh31qFnxa6mQRf:L6SGyZrWs6xfR
Score
6/10
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Winlogon = "c:\\windows\\mrss32.exe" 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Winlogon1 = "c:\\WINDOWS\\mrss32.exe" 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe -
Drops file in Windows directory 5 IoCs
description ioc Process File created \??\c:\windows\mrss32.exe 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe File opened for modification \??\c:\windows\mrss32.exe 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe File opened for modification C:\WINDOWS\mrss32.exe 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe File created \??\c:\WINDOWS\Hex.html 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe File opened for modification \??\c:\WINDOWS\Hex.html 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe -
Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\MIME\Database 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Charset 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Codepage 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1044 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe 1044 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe 1044 5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe"C:\Users\Admin\AppData\Local\Temp\5689b637087421bcc1b1c340e84686618c83a22f9470cae20faea819cfb7fe8d.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:1044