42e7ad5213d1f979b307efa12bafc7a139e43f5fefc621b12d594b318cb5c7a3

Analysis

max time kernel
117s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/12/2023, 02:25

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General

Target

4c9d82e94c1ef0ec6333c715df840238.dll
Size

116KB
MD5

4c9d82e94c1ef0ec6333c715df840238
SHA1

b83c62a223f3eada97a1bd44eb3ec46e9a6e3622
SHA256

42e7ad5213d1f979b307efa12bafc7a139e43f5fefc621b12d594b318cb5c7a3
SHA512

3445e08ad1c139e5ba361562e32ec5073d95bd33adac412901d5f75131c9668805b74bccca674f3709706b5e80e9e5e08782170382936c729bd632cdf508c92b
SSDEEP

3072:FN0GxvNd6zH7Qmb/GcndhkCudjLOadSScvuvuYCqkly8lQ4mmmokGsALQ:FNnVParGvunqkl/lQ4DulM

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\{BF50AC63-19DA-487E-AD4A-0B452D823B59}	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Version Vector\	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\	regsvr32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\WarnOnClose = "0"	regsvr32.exe

Modifies registry class 49 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\FSHS = "0"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\SJBC = "300"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4645A0E0-7B59-439A-BB73-D4159321E09B}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "QuickFlash"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4645A0E0-7B59-439A-BB73-D4159321E09B}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{BF50AC63-19DA-487E-AD4A-0B452D823B59}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "BrowserPanel"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4c9d82e94c1ef0ec6333c715df840238.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4645A0E0-7B59-439A-BB73-D4159321E09B}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}\TypeLib\ = "{4645A0E0-7B59-439A-BB73-D4159321E09B}"	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\{BF50AC63-19DA-487E-AD4A-0B452D823B59}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ = "BrowserPanel"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4645A0E0-7B59-439A-BB73-D4159321E09B}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}\TypeLib	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\BLOD = "1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4645A0E0-7B59-439A-BB73-D4159321E09B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4645A0E0-7B59-439A-BB73-D4159321E09B}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}\ProxyStubClsid32	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\CUDA = "796"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0E5CBF21-D15F-11d0-8301-00AA005B4383}\InProcServer32\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ProgID\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4645A0E0-7B59-439A-BB73-D4159321E09B}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4645A0E0-7B59-439A-BB73-D4159321E09B}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}\TypeLib\ = "{4645A0E0-7B59-439A-BB73-D4159321E09B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4645A0E0-7B59-439A-BB73-D4159321E09B}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4c9d82e94c1ef0ec6333c715df840238.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C86B82BE-3E84-4F71-8323-F12BB71D9CB2}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4645A0E0-7B59-439A-BB73-D4159321E09B}\1.0\ = "QuickFlash 1.0 Type Library"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2732	2084	regsvr32.exe	28
PID 2084 wrote to memory of 2732	2084	regsvr32.exe	28
PID 2084 wrote to memory of 2732	2084	regsvr32.exe	28
PID 2084 wrote to memory of 2732	2084	regsvr32.exe	28
PID 2084 wrote to memory of 2732	2084	regsvr32.exe	28
PID 2084 wrote to memory of 2732	2084	regsvr32.exe	28
PID 2084 wrote to memory of 2732	2084	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\4c9d82e94c1ef0ec6333c715df840238.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\4c9d82e94c1ef0ec6333c715df840238.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:2732

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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