cd8efeeac9e3a9efe818dca544bb0b692f6003799c713d2e965a78b50e112760

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
26-05-2024 07:40

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General

Target

TTSIEPlugin.dll
Size

120KB
MD5

ac16704c77593786c65b273e0719400f
SHA1

6d2f5c0f4cdf9c8326b87232627d1eb9699efdab
SHA256

07e95ec9e72347f83e1fde63812fb85b36c0f8770effc34bbb574b259cb3ba97
SHA512

9f763b192a909d0fa9a38e540fe5a8de0bcc5fc7e621b69d1d254f62820dde3b72c81a69ea70ac44f10ec0fd421d076d7f299370d7af1f55e1a00ad7570b7501
SSDEEP

3072:Yri3/UtvEcUzeNK5t0f0RXGg1ZRnmkLDNJqfnQf3m:Yr+/wUqUtFXfZkMBW

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

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

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{E1022531-9301-4071-A07A-F7237D0DE741}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{E1022531-9301-4071-A07A-F7237D0DE741}\ = "TTSIEBHO"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{E1022531-9301-4071-A07A-F7237D0DE741}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 50 IoCs

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TTSIEPlugin.TTSIEBHO\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E1022531-9301-4071-A07A-F7237D0DE741}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TTSIEPlugin.TTSIEBHO\CLSID\ = "{E1022531-9301-4071-A07A-F7237D0DE741}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E1022531-9301-4071-A07A-F7237D0DE741}\TypeLib\ = "{AFB37209-747D-48B7-98A8-682371F2C841}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}\TypeLib\ = "{AFB37209-747D-48B7-98A8-682371F2C841}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TTSIEPlugin.TTSIEBHO.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TTSIEPlugin.TTSIEBHO\ = "ÌÔÌÔËÑ±È¼Û(ÌÔÍ¬¿î)"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E1022531-9301-4071-A07A-F7237D0DE741}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E1022531-9301-4071-A07A-F7237D0DE741}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\TTSIEPlugin.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AFB37209-747D-48B7-98A8-682371F2C841}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{ADCF888E-D1CB-4B41-A065-33EDAB7A1DF9}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E1022531-9301-4071-A07A-F7237D0DE741}\ = "ÌÔÌÔËÑ±È¼Û(ÌÔÍ¬¿î)"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AFB37209-747D-48B7-98A8-682371F2C841}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\TTSIEPlugin.DLL\AppID = "{ADCF888E-D1CB-4B41-A065-33EDAB7A1DF9}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TTSIEPlugin.TTSIEBHO\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E1022531-9301-4071-A07A-F7237D0DE741}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AFB37209-747D-48B7-98A8-682371F2C841}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\TTSIEPlugin.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TTSIEPlugin.TTSIEBHO.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E1022531-9301-4071-A07A-F7237D0DE741}\VersionIndependentProgID\ = "TTSIEPlugin.TTSIEBHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TTSIEPlugin.TTSIEBHO.1\CLSID\ = "{E1022531-9301-4071-A07A-F7237D0DE741}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AFB37209-747D-48B7-98A8-682371F2C841}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}\ = "ITTSIEBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E1022531-9301-4071-A07A-F7237D0DE741}\ProgID\ = "TTSIEPlugin.TTSIEBHO.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AFB37209-747D-48B7-98A8-682371F2C841}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E1022531-9301-4071-A07A-F7237D0DE741}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AFB37209-747D-48B7-98A8-682371F2C841}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}\ = "ITTSIEBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}\TypeLib\ = "{AFB37209-747D-48B7-98A8-682371F2C841}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{ADCF888E-D1CB-4B41-A065-33EDAB7A1DF9}\ = "TTSIEPlugin"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TTSIEPlugin.TTSIEBHO.1\ = "ÌÔÌÔËÑ±È¼Û(ÌÔÍ¬¿î)"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E1022531-9301-4071-A07A-F7237D0DE741}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AFB37209-747D-48B7-98A8-682371F2C841}\1.0\ = "TTSIEPlugin 1.2 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AFB37209-747D-48B7-98A8-682371F2C841}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TTSIEPlugin.TTSIEBHO	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AFB37209-747D-48B7-98A8-682371F2C841}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\TTSIEPlugin.DLL	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TTSIEPlugin.TTSIEBHO\CurVer\ = "TTSIEPlugin.TTSIEBHO.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E1022531-9301-4071-A07A-F7237D0DE741}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E1022531-9301-4071-A07A-F7237D0DE741}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{AFB37209-747D-48B7-98A8-682371F2C841}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BECB3B22-289A-45C1-B704-F27172FF7E20}\TypeLib	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 2168 wrote to memory of 2392	2168	regsvr32.exe	regsvr32.exe
PID 2168 wrote to memory of 2392	2168	regsvr32.exe	regsvr32.exe
PID 2168 wrote to memory of 2392	2168	regsvr32.exe	regsvr32.exe
PID 2168 wrote to memory of 2392	2168	regsvr32.exe	regsvr32.exe
PID 2168 wrote to memory of 2392	2168	regsvr32.exe	regsvr32.exe
PID 2168 wrote to memory of 2392	2168	regsvr32.exe	regsvr32.exe
PID 2168 wrote to memory of 2392	2168	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\TTSIEPlugin.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\TTSIEPlugin.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2392

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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