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Analysis
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max time kernel
139s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
02/02/2024, 07:41
Static task
static1
Behavioral task
behavioral1
Sample
88f255fd775aafb046e5d09b20479530.exe
Resource
win7-20231129-en
General
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Target
88f255fd775aafb046e5d09b20479530.exe
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Size
128KB
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MD5
88f255fd775aafb046e5d09b20479530
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SHA1
66679e0d020a19828953862224f61a500640b981
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SHA256
b25adcbac58af162011d0382c9a45bb41b48ece7f18c109c41a5bd57e0308e9c
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SHA512
43c5c415aa7ea5aea0f8becbc001d853b8f5730969465f522723f2ffb43ae00397d1e9ef724997fd347c18ff7e3fa1065675506b0a244e5d2bfeb6bb7c00fd44
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SSDEEP
3072:EmeDmBqskJgjCwAeOd4eOIBd6/T+h/zPv5VdYR1:E8hE4eOa6/ChrRVdYR1
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
pid Process 3116 regsvr32.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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\{11F09AFE-75AD-4E52-AB43-E09E9351CE17} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\ = "AdPopup" regsvr32.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\Common Files\PushWare\Uninst.exe 88f255fd775aafb046e5d09b20479530.exe File created C:\Program Files (x86)\Common Files\PushWare\cpush.dll 88f255fd775aafb046e5d09b20479530.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 64 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NexwAdPopup.AWLogic\CurVer\ = "NexwAdPopup.AWLogic.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34A12A06-48C0-420D-8F11-73552EE9631A}\ProgID\ = "NewAdPopup.ToolbarDetector.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34A12A06-48C0-420D-8F11-73552EE9631A}\AppID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NewAdPopup.ToolbarDetector regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34A12A06-48C0-420D-8F11-73552EE9631A}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\InprocServer32\ = "C:\\Program Files (x86)\\Common Files\\PushWare\\cpush.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}\1.0\0\win32\ = "C:\\Program Files (x86)\\Common Files\\PushWare\\cpush.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\TypeLib\ = "{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2F685B36-C53A-4653-9231-1DAE5736DE45}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\ = "CPopupBlock Object" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NewAdPopup.ToolbarDetector.1\CLSID\ = "{34A12A06-48C0-420D-8F11-73552EE9631A}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\ = "IPopupBlock" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2F685B36-C53A-4653-9231-1DAE5736DE45}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NewCosoMediumPop.PopCoso.1\CLSID\ = "{CDE9EB54-A08E-4570-B748-13F5DDB5781C}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\TypeLib\ = "{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\ = "CAdLogic Object" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\TypeLib\ = "{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NewAdPopup.ToolbarDetector\ = "CToolbarDetector Object" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NewAdPopup.ToolbarDetector\CurVer\ = "NewAdPopup.ToolbarDetector.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34A12A06-48C0-420D-8F11-73552EE9631A}\TypeLib\ = "{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\InprocServer32\ThreadingModel = "apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFD-75AD-4E51-AB43-E09E9351CE16} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NexwAdPopup.AWLogic\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\AppID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NewAdPopup.ToolbarDetector.1\ = "CToolbarDetector Object" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34A12A06-48C0-420D-8F11-73552EE9631A}\VersionIndependentProgID\ = "NewAdPopup.ToolbarDetector" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\AppID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NexwAdPopup.AWLogic.1\ = "CAdLogic Object" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE2267BD-B163-407F-9E8D-6ADEC771E7AB} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NexwAdPopup.AWLogic.1\CLSID\ = "{11F09AFE-75AD-4E52-AB43-E09E9351CE17}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34A12A06-48C0-420D-8F11-73552EE9631A}\InprocServer32\ThreadingModel = "apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F685B36-C53A-4653-9231-1DAE5736DE45}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NewCosoMediumPop.PopCoso.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NewCosoMediumPop.PopCoso\CLSID\ = "{CDE9EB54-A08E-4570-B748-13F5DDB5781C}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NexwAdPopup.AWLogic\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34A12A06-48C0-420D-8F11-73552EE9631A}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\TypeLib\ = "{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34A12A06-48C0-420D-8F11-73552EE9631A}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2F685B36-C53A-4653-9231-1DAE5736DE45}\ = "IToolbarDetector" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}\1.0\ = "NewAdPopup 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\TypeLib\ = "{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2476 wrote to memory of 3116 2476 88f255fd775aafb046e5d09b20479530.exe 84 PID 2476 wrote to memory of 3116 2476 88f255fd775aafb046e5d09b20479530.exe 84 PID 2476 wrote to memory of 3116 2476 88f255fd775aafb046e5d09b20479530.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\88f255fd775aafb046e5d09b20479530.exe"C:\Users\Admin\AppData\Local\Temp\88f255fd775aafb046e5d09b20479530.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2476 -
C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s "C:\Program Files (x86)\Common Files\PushWare\cpush.dll"2⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:3116
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
208KB
MD5a66cacb7947b94dff2acc14aab607266
SHA1a7c627a114b44071831b3cfecb9d3328b7e6a51e
SHA256567887e104611e6a3c9d593e5cfdf326e449462b31745999e27001d269a647e5
SHA5121250a8eab2f382c8bafbca1cbe12590a7911cae89264457e721d7fcea97fa12641ff6ecb2ae336bcb0a99f457cb364e3cb1e54ed03dca0fc8ccb9d5b180aa8bb