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Analysis
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max time kernel
119s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
18/01/2024, 11:14
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
653cc285f2f879a133d6e0b779ca8cd4.dll
Resource
win7-20231215-en
3 signatures
150 seconds
General
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Target
653cc285f2f879a133d6e0b779ca8cd4.dll
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Size
44KB
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MD5
653cc285f2f879a133d6e0b779ca8cd4
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SHA1
3da58ae7f70f6f276ab6d9abf2c2c2f77649fa39
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SHA256
160ab192df99e5bab537978f6daf7559567ed50fa366cf743d59c24e9a5312f0
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SHA512
02ca8e6854eb0154998dae1147097d5489a2176189414c3ade571c752bad38b0925140a67ac68e2453de5e5e8c2bc7ac957184be8db6db792f8292b82db5937f
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SSDEEP
768:p2fqPVUjHtBLCGIj3Zbv51DLjXhDaXXWM0ibdex78doG1uk78A33Icg:E4itYZJ7jXkHWMoxeosP7f33Icg
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 2 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\{8CF456C5-BAC8-441C-8C9F-861BFFDC0721} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{8CF456C5-BAC8-441C-8C9F-861BFFDC0721}\NoExplorer = "1" regsvr32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8CF456C5-BAC8-441C-8C9F-861BFFDC0721}\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\{8CF456C5-BAC8-441C-8C9F-861BFFDC0721} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8CF456C5-BAC8-441C-8C9F-861BFFDC0721}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\653cc285f2f879a133d6e0b779ca8cd4.dll" regsvr32.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2460 wrote to memory of 2868 2460 regsvr32.exe 28 PID 2460 wrote to memory of 2868 2460 regsvr32.exe 28 PID 2460 wrote to memory of 2868 2460 regsvr32.exe 28 PID 2460 wrote to memory of 2868 2460 regsvr32.exe 28 PID 2460 wrote to memory of 2868 2460 regsvr32.exe 28 PID 2460 wrote to memory of 2868 2460 regsvr32.exe 28 PID 2460 wrote to memory of 2868 2460 regsvr32.exe 28 PID 2868 wrote to memory of 1684 2868 regsvr32.exe 29 PID 2868 wrote to memory of 1684 2868 regsvr32.exe 29 PID 2868 wrote to memory of 1684 2868 regsvr32.exe 29 PID 2868 wrote to memory of 1684 2868 regsvr32.exe 29 PID 2868 wrote to memory of 1684 2868 regsvr32.exe 29 PID 2868 wrote to memory of 1684 2868 regsvr32.exe 29 PID 2868 wrote to memory of 1684 2868 regsvr32.exe 29
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\653cc285f2f879a133d6e0b779ca8cd4.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2460 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\653cc285f2f879a133d6e0b779ca8cd4.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2868 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\653cc285f2f879a133d6e0b779ca8cd4.dll",DllGetObjectType3⤵PID:1684
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