a4efe529bfed95acdba54c0af6a9fe330f2ca58e1c893980cb1e750e80e5e754

General

Target

a4efe529bfed95acdba54c0af6a9fe330f2ca58e1c893980cb1e750e80e5e754.dll
Size

296KB
MD5

03cd6c7bd1a69cc1814f464bf6cb2b90
SHA1

39d7e9fa83afa08067d8def0582adcf72e5c94a1
SHA256

a4efe529bfed95acdba54c0af6a9fe330f2ca58e1c893980cb1e750e80e5e754
SHA512

535305503db21964e5a7fc3e0a859cfb4a3463e5ee90b7f100bf29d0ccba5daca79a9c3515b7cfc163e26bfa889649cbc689cf092139d86387163c3229070c45

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs
BHOs are DLL modules which act as plugins for Internet Explorer.
stealer adware

Modify Registry
T1112

Browser Extensions
T1176

Modifies registry class 64 IoCs

Processes:

regsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\PSText.DLL\AppID = "{E89A07B5-BD7A-43F9-BDA4-0DAA48AC4FA5}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\ProgID\ = "PlaySushi32.PlaySushi.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\ = "IIEButton"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PlaySushi32.PlaySushi.1\ = "PlaySushi"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\TypeLib\ = "{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton\CurVer\ = "PSText.IEButton.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\ = "PlaySushi"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\TypeLib\ = "{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton\CLSID\ = "{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\TypeLib\ = "{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\TypeLib\ = "{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PlaySushi32.PlaySushi.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PlaySushi32.PlaySushi\ = "PlaySushi"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton\ = "IEButton Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a4efe529bfed95acdba54c0af6a9fe330f2ca58e1c893980cb1e750e80e5e754.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PlaySushi32.PlaySushi.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PlaySushi32.PlaySushi	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\VersionIndependentProgID\ = "PlaySushi32.PlaySushi"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\ = "_IPluginEvents"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton.1\ = "IEButton Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\ = "GoPlaySushi"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{975BBCC0-19DF-47C2-9AE2-D78EEFA96821}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\ = "_IPluginEvents"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5272CCD4-4199-4B04-BF68-B28A0DCF0151}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{EBD24BD3-E272-4FA3-A8BA-C5D709757CAB}\ProgID\ = "PSText.IEButton.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PlaySushi32.PlaySushi\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PlaySushi32.PlaySushi\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{21608B66-026F-4DCB-9244-0DACA328DCED}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{F165085B-6B85-4AD5-AD00-95552A823F6D}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{45A8F904-D9CA-439B-9CBB-11097B45D9E1}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{E89A07B5-BD7A-43F9-BDA4-0DAA48AC4FA5}\ = "PlaySushi32"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PSText.IEButton\CLSID	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 1672 wrote to memory of 1120	1672	regsvr32.exe	regsvr32.exe
PID 1672 wrote to memory of 1120	1672	regsvr32.exe	regsvr32.exe
PID 1672 wrote to memory of 1120	1672	regsvr32.exe	regsvr32.exe
PID 1672 wrote to memory of 1120	1672	regsvr32.exe	regsvr32.exe
PID 1672 wrote to memory of 1120	1672	regsvr32.exe	regsvr32.exe
PID 1672 wrote to memory of 1120	1672	regsvr32.exe	regsvr32.exe
PID 1672 wrote to memory of 1120	1672	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\a4efe529bfed95acdba54c0af6a9fe330f2ca58e1c893980cb1e750e80e5e754.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1672

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\a4efe529bfed95acdba54c0af6a9fe330f2ca58e1c893980cb1e750e80e5e754.dll
2⤵
- Modifies registry class
PID:1120

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1120-55-0x0000000000000000-mapping.dmp

Download
memory/1120-56-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/1672-54-0x000007FEFBAA1000-0x000007FEFBAA3000-memory.dmp

Filesize
8KB

Download

Analysis

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