Analysis
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max time kernel
138s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
04/02/2024, 17:05
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
8fb196fb857f96e1b9ea60f13e213774.dll
Resource
win7-20231215-en
3 signatures
150 seconds
General
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Target
8fb196fb857f96e1b9ea60f13e213774.dll
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Size
64KB
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MD5
8fb196fb857f96e1b9ea60f13e213774
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SHA1
7dc6132df05b748a74b028be85f542a05837e7fc
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SHA256
d9268821d11021e9f6a840132c645085c8a20321b13e301309d8d498fbf3018c
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SHA512
5904dcf0cacce79c58b7773539c6f2bde7430da392f437c4794cda372591ab7643f8c7daf1f8b4bbe5038e04457bd74d2804054887a9a5b7f643d4234b33cdca
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SSDEEP
384:A5bTbFWsxly1ody8y3EpkLhdgdS/asc0FMV3X9o/00SjT++1AQOOjNeLNek+vD2y:4bQSyo6mGpmuSjTx8N
Malware Config
Signatures
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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\{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF} regsvr32.exe -
Modifies registry class 46 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818}\TypeLib\ = "{4BE59A2E-4744-4D92-B078-B98E6AFCF54E}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4BE59A2E-4744-4D92-B078-B98E6AFCF54E}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Dl07.dcb\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Dl07.dcb\CurVer\ = "Dl07.dcb.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8fb196fb857f96e1b9ea60f13e213774.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4BE59A2E-4744-4D92-B078-B98E6AFCF54E}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Dl07.dcb.1\CLSID\ = "{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Dl07.dcb regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Dl07.dcb\ = "dcb Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4BE59A2E-4744-4D92-B078-B98E6AFCF54E}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Dl07.dcb\CLSID\ = "{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Dl07.dcb\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4BE59A2E-4744-4D92-B078-B98E6AFCF54E}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4BE59A2E-4744-4D92-B078-B98E6AFCF54E}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818}\ = "Idcb" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818}\ = "Idcb" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Dl07.dcb.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4BE59A2E-4744-4D92-B078-B98E6AFCF54E} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF}\ = "dcb Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4BE59A2E-4744-4D92-B078-B98E6AFCF54E}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF}\VersionIndependentProgID\ = "Dl07.dcb" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818}\TypeLib\ = "{4BE59A2E-4744-4D92-B078-B98E6AFCF54E}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4BE59A2E-4744-4D92-B078-B98E6AFCF54E}\1.0\ = "dl07 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{72E29FF3-09D6-4B99-BBA5-B6E243ABC818}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF}\ProgID\ = "Dl07.dcb.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF}\TypeLib\ = "{4BE59A2E-4744-4D92-B078-B98E6AFCF54E}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4BE59A2E-4744-4D92-B078-B98E6AFCF54E}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8fb196fb857f96e1b9ea60f13e213774.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4BE59A2E-4744-4D92-B078-B98E6AFCF54E}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Dl07.dcb.1\ = "dcb Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Dl07.dcb.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B0B678D8-ECB3-4FD6-A8D7-9F0F6C03C5FF}\ProgID regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2512 wrote to memory of 2412 2512 regsvr32.exe 84 PID 2512 wrote to memory of 2412 2512 regsvr32.exe 84 PID 2512 wrote to memory of 2412 2512 regsvr32.exe 84
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\8fb196fb857f96e1b9ea60f13e213774.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2512 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\8fb196fb857f96e1b9ea60f13e213774.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2412
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