c5111eb2d51427224234d9194c0af696cd437aca935d630e8eace2dd6fa58b36

Analysis

max time kernel
42s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
05/12/2022, 14:29

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General

Target

c5111eb2d51427224234d9194c0af696cd437aca935d630e8eace2dd6fa58b36.dll
Size

33KB
MD5

0c6b517dc30cafb0d59463707b9dc544
SHA1

b6a71f4cf04eb8bce0a3fe5b0f6161214fe3618a
SHA256

c5111eb2d51427224234d9194c0af696cd437aca935d630e8eace2dd6fa58b36
SHA512

b99bf104c4ece509640de0e17972240d994aed3050a4b94ebd4748333457b5143fa305648036cb1fe1cbf25db5cf5a7906d053adc06ddcadd39231c1b7742ee3
SSDEEP

768:Hy5Fys31Kjpz8FOcTP4wAt3abq1xTpzuwwjRdpDB4:aysl818FOcT743akTFuweR7

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 1 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\{3E273A92-9273-4B89-8A38-5DF2FD0F0D2E}	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E273A92-9273-4B89-8A38-5DF2FD0F0D2E}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E273A98-9273-4B89-8A38-5DF2FD0F0D2E}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}\TypeLib\ = "{3E273A98-9273-4B89-8A38-5DF2FD0F0D2E}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E273A98-9273-4B89-8A38-5DF2FD0F0D2E}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E273A98-9273-4B89-8A38-5DF2FD0F0D2E}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E273A98-9273-4B89-8A38-5DF2FD0F0D2E}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}\TypeLib\ = "{3E273A98-9273-4B89-8A38-5DF2FD0F0D2E}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E273A92-9273-4B89-8A38-5DF2FD0F0D2E}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E273A92-9273-4B89-8A38-5DF2FD0F0D2E}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E273A92-9273-4B89-8A38-5DF2FD0F0D2E}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c5111eb2d51427224234d9194c0af696cd437aca935d630e8eace2dd6fa58b36.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E273A98-9273-4B89-8A38-5DF2FD0F0D2E}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{3E273A92-9273-4B89-8A38-5DF2FD0F0D2E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E273A92-9273-4B89-8A38-5DF2FD0F0D2E}\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E273A98-9273-4B89-8A38-5DF2FD0F0D2E}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E273A98-9273-4B89-8A38-5DF2FD0F0D2E}\1.0\ = "IEHelper 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E273A98-9273-4B89-8A38-5DF2FD0F0D2E}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E273A92-9273-4B89-8A38-5DF2FD0F0D2E}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E273A92-9273-4B89-8A38-5DF2FD0F0D2E}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E273A92-9273-4B89-8A38-5DF2FD0F0D2E}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E273A92-9273-4B89-8A38-5DF2FD0F0D2E}\ProgID\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E273A98-9273-4B89-8A38-5DF2FD0F0D2E}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c5111eb2d51427224234d9194c0af696cd437aca935d630e8eace2dd6fa58b36.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3E273A92-9273-4B89-8A38-5DF2FD0F0D2E}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3E273A98-9273-4B89-8A38-5DF2FD0F0D2E}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3E273A91-9273-4B89-8A38-5DF2FD0F0D2E}\TypeLib\Version = "1.0"	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1696	regsvr32.exe
1696	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 944 wrote to memory of 1696	944	regsvr32.exe	28
PID 944 wrote to memory of 1696	944	regsvr32.exe	28
PID 944 wrote to memory of 1696	944	regsvr32.exe	28
PID 944 wrote to memory of 1696	944	regsvr32.exe	28
PID 944 wrote to memory of 1696	944	regsvr32.exe	28
PID 944 wrote to memory of 1696	944	regsvr32.exe	28
PID 944 wrote to memory of 1696	944	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c5111eb2d51427224234d9194c0af696cd437aca935d630e8eace2dd6fa58b36.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:944
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\c5111eb2d51427224234d9194c0af696cd437aca935d630e8eace2dd6fa58b36.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:1696

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/944-54-0x000007FEFB6D1000-0x000007FEFB6D3000-memory.dmp

Filesize
8KB

Download
memory/1696-56-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

Filesize
8KB

Download