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Analysis
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max time kernel
122s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
09/01/2024, 04:54
Static task
static1
Behavioral task
behavioral1
Sample
4d62528df3771ba56e45a2548f3b19a4.dll
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
4d62528df3771ba56e45a2548f3b19a4.dll
Resource
win10v2004-20231215-en
General
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Target
4d62528df3771ba56e45a2548f3b19a4.dll
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Size
128KB
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MD5
4d62528df3771ba56e45a2548f3b19a4
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SHA1
8aa1fe16fc7bec499fc5eb5ed745b51205737d85
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SHA256
c2c88b84e38a0944cda57eff42fcd4052657da05048bb1132a07beca63ab6585
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SHA512
823b0b5bb1bec017a5c6f1b97da7d3559f5a6234089c132118b9655b0b9ab6fb1064661d43f0708d26c3d5ea52acabcf7f8641f9dd68d4872a2af96676c24aca
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SSDEEP
1536:bEwsthLuY3vJYUEPMVWwAenmB7IQPkcqR6IpL+uYCGYFhWOJFpwO+Xo0bJTWr+9i:Fs3lhLbDAbNH0RBMCGYjEO5wJ6KYup6
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\xgzgbopa = "regsvr32 /u \"C:\\ProgramData\\xgzgbopa.dll\"" regsvr32.exe -
Installs/modifies Browser Helper Object 2 TTPs 1 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{31600B7C-8096-D3BF-F144-03FEB81617E2} regsvr32.exe -
Modifies registry class 7 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31600B7C-8096-D3BF-F144-03FEB81617E2}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31600B7C-8096-D3BF-F144-03FEB81617E2} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31600B7C-8096-D3BF-F144-03FEB81617E2}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4d62528df3771ba56e45a2548f3b19a4.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31600B7C-8096-D3BF-F144-03FEB81617E2}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{31600B7C-8096-D3BF-F144-03FEB81617E2}\InprocServer32\t = "1704776058" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 3016 wrote to memory of 2672 3016 regsvr32.exe 28 PID 3016 wrote to memory of 2672 3016 regsvr32.exe 28 PID 3016 wrote to memory of 2672 3016 regsvr32.exe 28 PID 3016 wrote to memory of 2672 3016 regsvr32.exe 28 PID 3016 wrote to memory of 2672 3016 regsvr32.exe 28 PID 3016 wrote to memory of 2672 3016 regsvr32.exe 28 PID 3016 wrote to memory of 2672 3016 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\4d62528df3771ba56e45a2548f3b19a4.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3016 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\4d62528df3771ba56e45a2548f3b19a4.dll2⤵
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2672
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