Analysis
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max time kernel
47s -
max time network
51s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 12:41
Static task
static1
Behavioral task
behavioral1
Sample
f59c9c56a4644ab89564a23d76683bb36130b3c3a583028100088c06ee0d844f.dll
Resource
win7-20220901-en
windows7-x64
3 signatures
150 seconds
General
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Target
f59c9c56a4644ab89564a23d76683bb36130b3c3a583028100088c06ee0d844f.dll
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Size
145KB
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MD5
471eb996f8fb2074cf86168f7d97cfd3
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SHA1
e9767fe25e9637a623ea2e8e8cba665cf1380a9e
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SHA256
f59c9c56a4644ab89564a23d76683bb36130b3c3a583028100088c06ee0d844f
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SHA512
71915831509b45e27de2d030e5b8a48176b42d33c1bd155b17b32d46a7a2d4551d8ac11aa7424f96da6abefc3fb74322e57ad3e48040577f0f4c09dfd83326b9
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SSDEEP
1536:y7Xdavum6ZLudupncdGpjPlReXjIbY402QcD6Y2ZsPCyhzq5DhXFz+z9rWi83gqa:edOumsL2ul83jIM5RyMIpW3wj5ho2w+
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.
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{9F531FB1-7C1F-4E1A-8C0C-E8D6177130E2} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{9F531FB1-7C1F-4E1A-8C0C-E8D6177130E2}\NoExplorer regsvr32.exe -
Modifies registry class 5 IoCs
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9F531FB1-7C1F-4E1A-8C0C-E8D6177130E2} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9F531FB1-7C1F-4E1A-8C0C-E8D6177130E2}\ = "Gaming support for ArcadeWeb" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9F531FB1-7C1F-4E1A-8C0C-E8D6177130E2}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9F531FB1-7C1F-4E1A-8C0C-E8D6177130E2}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f59c9c56a4644ab89564a23d76683bb36130b3c3a583028100088c06ee0d844f.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9F531FB1-7C1F-4E1A-8C0C-E8D6177130E2}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
regsvr32.exedescription pid process target process PID 948 wrote to memory of 1692 948 regsvr32.exe regsvr32.exe PID 948 wrote to memory of 1692 948 regsvr32.exe regsvr32.exe PID 948 wrote to memory of 1692 948 regsvr32.exe regsvr32.exe PID 948 wrote to memory of 1692 948 regsvr32.exe regsvr32.exe PID 948 wrote to memory of 1692 948 regsvr32.exe regsvr32.exe PID 948 wrote to memory of 1692 948 regsvr32.exe regsvr32.exe PID 948 wrote to memory of 1692 948 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\f59c9c56a4644ab89564a23d76683bb36130b3c3a583028100088c06ee0d844f.dll1⤵
- Suspicious use of WriteProcessMemory
PID:948 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\f59c9c56a4644ab89564a23d76683bb36130b3c3a583028100088c06ee0d844f.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1692