3bb5a9a52caf98bc9546b1923c2ac85e679784ff787379a4d0288824e7e4b935

Analysis

max time kernel
91s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
05/02/2024, 08:16

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General

Target
917cd608070e75d414c5277197d4e1e4.dll
Size 148KB
Sample240205-j5798sddej
SHA256 3bb5a9a52caf98bc9546b1923c2ac85e679784ff787379a4d0288824e7e4b935
MD5 917cd608070e75d414c5277197d4e1e4
SHA1 a124ab13213f52ef639cdba0241db74eab370cbc
SHA512 9ce37233c9f2abb21196d65608b5564ed73c77006c3bb63c847ee495b2ab03680e1b5c8af011d5aa1a3ba2103f7e8d501cf343b6d87509583cce16ca1581b4e7
SSDEEP 3072:ObPw9Aa5hrhsBq6HdNVMtENjlJkjsXaQZ70bdMRNQ/ZhF8EYcea1g8jm5:rOaWoMdTMtENPkjsXaQZSdYmxk8C5
MD5 SHA1 SHA512 SSDEEP

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\{12D02C08-218F-4A11-BDE1-6611ADB7B81F}	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib\ = "{CE7C3CE2-4B15-11D1-ABED-709549C10000}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12D02C08-218F-4A11-BDE1-6611ADB7B81F}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib\ = "{CE7C3CE2-4B15-11D1-ABED-709549C10000}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\917cd608070e75d414c5277197d4e1e4.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12D02C08-218F-4A11-BDE1-6611ADB7B81F}\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12D02C08-218F-4A11-BDE1-6611ADB7B81F}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{12D02C08-218F-4A11-BDE1-6611ADB7B81F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12D02C08-218F-4A11-BDE1-6611ADB7B81F}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12D02C08-218F-4A11-BDE1-6611ADB7B81F}\ProgID\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12D02C08-218F-4A11-BDE1-6611ADB7B81F}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\917CD6~1.DLL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\ = "IEHelper 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12D02C08-218F-4A11-BDE1-6611ADB7B81F}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12D02C08-218F-4A11-BDE1-6611ADB7B81F}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE7C3CE2-4B15-11D1-ABED-709549C10000}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE7C3CEF-4B15-11D1-ABED-709549C10000}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12D02C08-218F-4A11-BDE1-6611ADB7B81F}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12D02C08-218F-4A11-BDE1-6611ADB7B81F}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2580	1940	regsvr32.exe	83
PID 1940 wrote to memory of 2580	1940	regsvr32.exe	83
PID 1940 wrote to memory of 2580	1940	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\917cd608070e75d414c5277197d4e1e4.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\917cd608070e75d414c5277197d4e1e4.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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 v15

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