Analysis
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max time kernel
121s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
18-03-2024 18:48
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
d440299f1563d72e0480848ff13d2102.dll
Resource
win7-20240221-en
windows7-x64
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
d440299f1563d72e0480848ff13d2102.dll
Resource
win10v2004-20240226-en
windows10-2004-x64
4 signatures
150 seconds
General
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Target
d440299f1563d72e0480848ff13d2102.dll
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Size
159KB
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MD5
d440299f1563d72e0480848ff13d2102
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SHA1
8908ad0d2e2f86600ae3b838e8a00bd54d16739d
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SHA256
c6427b8dd566659d0a5da628aa0de440cd2c5f10ead810ade611d315b1ec88e1
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SHA512
685b2144e3c44270959d5ae8cc5de823d9a66e97d3ee7761375e9d81bfba42cd5f40fd1f36e967ed794030e44ca2cdbcb54770a1700b424d7ad03b87c5eb345a
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SSDEEP
3072:QXxCpifDIe6JefbnZ9tUJ65fl+ESqYwLuyC3y4v50L:QhCpifDIA9tUJ65CqYpXXOL
Score
6/10
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\{242bf48a-74cb-5b8d-d9a7-d51198c3bd5e} = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\d440299f1563d72e0480848ff13d2102.dll\" DllStub" regsvr32.exe -
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\{2df022c0-1a4a-a876-4c64-85071cb94d53} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{2df022c0-1a4a-a876-4c64-85071cb94d53}\NoExplorer = "\"\"" regsvr32.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2df022c0-1a4a-a876-4c64-85071cb94d53}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2df022c0-1a4a-a876-4c64-85071cb94d53} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2df022c0-1a4a-a876-4c64-85071cb94d53}\ = "giantads browser enhancer" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2df022c0-1a4a-a876-4c64-85071cb94d53}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2df022c0-1a4a-a876-4c64-85071cb94d53}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d440299f1563d72e0480848ff13d2102.dll" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2960 wrote to memory of 1908 2960 regsvr32.exe 28 PID 2960 wrote to memory of 1908 2960 regsvr32.exe 28 PID 2960 wrote to memory of 1908 2960 regsvr32.exe 28 PID 2960 wrote to memory of 1908 2960 regsvr32.exe 28 PID 2960 wrote to memory of 1908 2960 regsvr32.exe 28 PID 2960 wrote to memory of 1908 2960 regsvr32.exe 28 PID 2960 wrote to memory of 1908 2960 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\d440299f1563d72e0480848ff13d2102.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2960 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\d440299f1563d72e0480848ff13d2102.dll2⤵
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1908
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