61ec6befd650a37df47e190b9e0a42a8775279fcbc41a8a435d08609cff458a1

Analysis

max time kernel
131s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2022, 14:31

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General

Target

61ec6befd650a37df47e190b9e0a42a8775279fcbc41a8a435d08609cff458a1.dll
Size

118KB
MD5

5c12679c563803ffea2c8741782fcc54
SHA1

3007f5bd585a88ffdfef1d4fe7a152e4f9036837
SHA256

61ec6befd650a37df47e190b9e0a42a8775279fcbc41a8a435d08609cff458a1
SHA512

27071d47f2a2d7d110de2507b6772687166c1e327f7ff231e33e65614553884cf9ad4b2d75853639b975af7efdc56af416a1548b3872f1c5e4002d1d0858759d
SSDEEP

1536:eyGnoS9s4hQO2OH09HKZ5QlIS3TlGwYfuH1yUBLewZQ:ey79tOH09H456jQs1yUw

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\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\TypeLib\ = "{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\TypeLib\Version = "1.0"	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\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\TypeLib\ = "{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\InprocServer32	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\ = "IEHelper 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\ProgID\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{34CF11D2-ACC7-4DE6-BBB8-5FBE05BEE24A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\61ec6befd650a37df47e190b9e0a42a8775279fcbc41a8a435d08609cff458a1.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{34CF11D8-ACC7-4DE6-BBB8-5FBE05BEE24A}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\61ec6befd650a37df47e190b9e0a42a8775279fcbc41a8a435d08609cff458a1.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{34CF11D1-ACC7-4DE6-BBB8-5FBE05BEE24A}	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4964	regsvr32.exe
4964	regsvr32.exe
4964	regsvr32.exe
4964	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 4964	4956	regsvr32.exe	82
PID 4956 wrote to memory of 4964	4956	regsvr32.exe	82
PID 4956 wrote to memory of 4964	4956	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\61ec6befd650a37df47e190b9e0a42a8775279fcbc41a8a435d08609cff458a1.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4956
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\61ec6befd650a37df47e190b9e0a42a8775279fcbc41a8a435d08609cff458a1.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:4964

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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