28d692cf36f38561d0384327939686cf055a7ba156d14e8b6d67b9c93219060b

Analysis

max time kernel
172s
max time network
188s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2022, 09:59

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General

Target

28d692cf36f38561d0384327939686cf055a7ba156d14e8b6d67b9c93219060b.exe
Size

128KB
MD5

7e09f705cdb219b222cdb7eb54a31af3
SHA1

59046b3d99b595c829c7f0eabad78d27ccffca31
SHA256

28d692cf36f38561d0384327939686cf055a7ba156d14e8b6d67b9c93219060b
SHA512

4952af94077077d4d98b66315610cf832f975a99f5bb9daa02ad45e75b899b4709e987a6f2d6fbca9c30c3af37d4c407761d78f2fec25e75ce2f8d0762fe282d
SSDEEP

1536:Ejae1wYxmBBoskJWzCpqaMi1qbYJcIakJiQc7SeXWsGkaofst0oTITgkXs4QtLW:EmeDmBqskJRpqaP/cK5cBOofMT4gk3B

Score

7^/10

adware discovery stealer

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
1020	regsvr32.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

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	28d692cf36f38561d0384327939686cf055a7ba156d14e8b6d67b9c93219060b.exe
File created	C:\Program Files (x86)\Common Files\PushWare\cpush.dll	28d692cf36f38561d0384327939686cf055a7ba156d14e8b6d67b9c93219060b.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 64 IoCs

description	ioc	Process
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\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NewAdPopup.ToolbarDetector\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NewAdPopup.ToolbarDetector\CurVer\ = "NewAdPopup.ToolbarDetector.1"	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFD-75AD-4E51-AB43-E09E9351CE16}\InprocServer32\ = "C:\\Program Files (x86)\\Common Files\\PushWare\\cpush.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NewCosoMediumPop.PopCoso\CLSID	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NewCosoMediumPop.PopCoso\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2F685B36-C53A-4653-9231-1DAE5736DE45}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2F685B36-C53A-4653-9231-1DAE5736DE45}\TypeLib\ = "{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34A12A06-48C0-420D-8F11-73552EE9631A}\ = "CToolbarDetector Object"	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\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\ = "IPopupBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NexxAdPopup.AXLogic.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NexxAdPopup.AXLogic\CurVer\ = "NexxAdPopup.AXLogic.1"	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\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NewAdPopup.ToolbarDetector\CLSID\ = "{34A12A06-48C0-420D-8F11-73552EE9631A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFD-75AD-4E51-AB43-E09E9351CE16}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NexxAdPopup.AXLogic.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34A12A06-48C0-420D-8F11-73552EE9631A}	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\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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\ = "CAdLogic Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NewAdPopup.ToolbarDetector.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F685B36-C53A-4653-9231-1DAE5736DE45}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	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\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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{50C4CDD9-22D7-49FF-AC6D-7D4D528A3AB2}\ = "IPopupBlock"	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\CLSID\{34A12A06-48C0-420D-8F11-73552EE9631A}\InprocServer32\ = "C:\\Program Files (x86)\\Common Files\\PushWare\\cpush.dll"	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\Interface\{2F685B36-C53A-4653-9231-1DAE5736DE45}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NewCosoMediumPop.PopCoso\ = "CPopupBlock Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34A12A06-48C0-420D-8F11-73552EE9631A}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34A12A06-48C0-420D-8F11-73552EE9631A}\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\WOW6432Node\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\TypeLib\ = "{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NexxAdPopup.AXLogic.1\ = "CAdLogic Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\VersionIndependentProgID	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\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\Interface\{0AD3AB16-6D0E-4F04-8660-FB1F36BC2DC0}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NewCosoMediumPop.PopCoso.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2F685B36-C53A-4653-9231-1DAE5736DE45}\TypeLib\ = "{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\AppID	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\NexxAdPopup.AXLogic\CLSID\ = "{11F09AFE-75AD-4E52-AB43-E09E9351CE17}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\VersionIndependentProgID\ = "NexxAdPopup.AXLogic"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4248 wrote to memory of 1020	4248	28d692cf36f38561d0384327939686cf055a7ba156d14e8b6d67b9c93219060b.exe	79
PID 4248 wrote to memory of 1020	4248	28d692cf36f38561d0384327939686cf055a7ba156d14e8b6d67b9c93219060b.exe	79
PID 4248 wrote to memory of 1020	4248	28d692cf36f38561d0384327939686cf055a7ba156d14e8b6d67b9c93219060b.exe	79

C:\Users\Admin\AppData\Local\Temp\28d692cf36f38561d0384327939686cf055a7ba156d14e8b6d67b9c93219060b.exe
"C:\Users\Admin\AppData\Local\Temp\28d692cf36f38561d0384327939686cf055a7ba156d14e8b6d67b9c93219060b.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4248
- 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:1020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Common Files\PushWare\cpush.dll

Filesize
208KB

MD5
be1e7c818f04f542760c346ea78d76b6

SHA1
313db03d8501eff4f7602a12aa3af9c46fd64187

SHA256
eede3ebf90da854bf1dc297361e95ad0c220ccc5eb6e22cf8aea1cef5c6bdfaf

SHA512
386b5409b2832bf4b6fd451c6c60b9fec8ee7b0f737307221f758770ac58fb432a19cba7c2247212bba6c7b0cf97eedb275be12ab1c6eed213e6eec36ea770f5

Download Submit
C:\Program Files (x86)\Common Files\PushWare\cpush.dll

Filesize
208KB

MD5
be1e7c818f04f542760c346ea78d76b6

SHA1
313db03d8501eff4f7602a12aa3af9c46fd64187

SHA256
eede3ebf90da854bf1dc297361e95ad0c220ccc5eb6e22cf8aea1cef5c6bdfaf

SHA512
386b5409b2832bf4b6fd451c6c60b9fec8ee7b0f737307221f758770ac58fb432a19cba7c2247212bba6c7b0cf97eedb275be12ab1c6eed213e6eec36ea770f5

Download Submit