Analysis
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max time kernel
140s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
27-11-2022 15:27
Static task
static1
Behavioral task
behavioral1
Sample
bf45a498cd8cb6afaa53f0b014dca7f564447a0293812d6146721e188076099a.exe
Resource
win7-20220901-en
General
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Target
bf45a498cd8cb6afaa53f0b014dca7f564447a0293812d6146721e188076099a.exe
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Size
125KB
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MD5
8f15008642ae1765c2d053c497b39e1b
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SHA1
07ed572ecaed2e01db46b5674cdf5501dd1a3bdc
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SHA256
bf45a498cd8cb6afaa53f0b014dca7f564447a0293812d6146721e188076099a
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SHA512
28c29e7800f0fb07781233a9aa4fa2e881f450e0a08653c7251ec712567a5958c5dc354f93fb98d29cf5cc8c502847fbc1e7d8fbe0b626f01f61d2555f4b6476
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SSDEEP
3072:EmeDmBqskJ7uGpAkEKpo8FJlLs9sYlFWb43:E8yflpb7g5FWU3
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
pid Process 3732 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 bf45a498cd8cb6afaa53f0b014dca7f564447a0293812d6146721e188076099a.exe File created C:\Program Files (x86)\Common Files\PushWare\cpush.dll bf45a498cd8cb6afaa53f0b014dca7f564447a0293812d6146721e188076099a.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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description ioc Process Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main bf45a498cd8cb6afaa53f0b014dca7f564447a0293812d6146721e188076099a.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\TabProcGrowth = "0" bf45a498cd8cb6afaa53f0b014dca7f564447a0293812d6146721e188076099a.exe -
Modifies registry class 64 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\ProgID\ = "NexyAdPopup.AYLogic.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\ = "IAdLogic" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NewCosoMediumPop.PopCoso\CurVer\ = "NewCosoMediumPop.PopCoso.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NexyAdPopup.AYLogic regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\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\ = "NewAdPopup 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}\1.0\HELPDIR\ = "C:\\Program Files (x86)\\Common Files\\PushWare\\" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NexyAdPopup.AYLogic.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFD-75AD-4E51-AB43-E09E9351CE16}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\VersionIndependentProgID\ = "NewCosoMediumPop.PopCoso" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\ = "IELogic Helper" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NewCosoMediumPop.PopCoso\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\TypeLib\ = "{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\VersionIndependentProgID\ = "NexyAdPopup.AYLogic" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NexyAdPopup.AYLogic\CLSID\ = "{11F09AFE-75AD-4E52-AB43-E09E9351CE17}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\NexyAdPopup.AYLogic\CurVer\ = "NexyAdPopup.AYLogic.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\ProxyStubClsid32 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\WOW6432Node\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\TypeLib\ = "{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NexyAdPopup.AYLogic.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\TypeLib\ = "{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\ProgID\ = "NewCosoMediumPop.PopCoso.1" 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\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\ProgID 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}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NewCosoMediumPop.PopCoso.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\ = "CPopupBlock Object" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\ProgID 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 Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\ = "IPopupBlock" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NewCosoMediumPop.PopCoso.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\NewCosoMediumPop.PopCoso\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node 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\NexyAdPopup.AYLogic.1\ = "IELogic Helper" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\TypeLib\ = "{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\ = "IAdLogic" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\TypeLib 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\NewCosoMediumPop.PopCoso\CLSID\ = "{CDE9EB54-A08E-4570-B748-13F5DDB5781C}" 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\NexyAdPopup.AYLogic\ = "IELogic Helper" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4332 wrote to memory of 3732 4332 bf45a498cd8cb6afaa53f0b014dca7f564447a0293812d6146721e188076099a.exe 80 PID 4332 wrote to memory of 3732 4332 bf45a498cd8cb6afaa53f0b014dca7f564447a0293812d6146721e188076099a.exe 80 PID 4332 wrote to memory of 3732 4332 bf45a498cd8cb6afaa53f0b014dca7f564447a0293812d6146721e188076099a.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\bf45a498cd8cb6afaa53f0b014dca7f564447a0293812d6146721e188076099a.exe"C:\Users\Admin\AppData\Local\Temp\bf45a498cd8cb6afaa53f0b014dca7f564447a0293812d6146721e188076099a.exe"1⤵
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:4332 -
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:3732
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
200KB
MD535d22ce8a0c24e279698782463e77adc
SHA1f3bde32b64dd10424ac7b287df3b2d15c9aa7211
SHA256f8de3ba4c997f96d30d0de2bdd4d9feb226c8820495fc2b8540f99aca81e5736
SHA51245eedaec79de5e12160a4f74a93dc573dcd27de4352de13e35bdd42f5d33d0ae151b19e08483f0900a1955e64cc2bdef42727b728de1e55116d81a8d945a00e9
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Filesize
200KB
MD535d22ce8a0c24e279698782463e77adc
SHA1f3bde32b64dd10424ac7b287df3b2d15c9aa7211
SHA256f8de3ba4c997f96d30d0de2bdd4d9feb226c8820495fc2b8540f99aca81e5736
SHA51245eedaec79de5e12160a4f74a93dc573dcd27de4352de13e35bdd42f5d33d0ae151b19e08483f0900a1955e64cc2bdef42727b728de1e55116d81a8d945a00e9