791dd2dca7133e4da5dc08714b2cf694985b48829d5d84ddf64003d423a6015c

Analysis

max time kernel
84s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2022 07:56

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General

Target

791dd2dca7133e4da5dc08714b2cf694985b48829d5d84ddf64003d423a6015c.dll
Size

52KB
MD5

b77b35fdfc5ca72fa830855824922afb
SHA1

dc1df638f19894ce3e4b757ed65dadff070fa729
SHA256

791dd2dca7133e4da5dc08714b2cf694985b48829d5d84ddf64003d423a6015c
SHA512

11b5594704363f5f8988c0aaf119a24626caaf066854b7dc1c2efcaaeb6cc2ecf52692fedebb496069ad8a114f8c16d7b10b0ecacc57c0149cb3c100f945f6d6
SSDEEP

768:nrWBsI/rPJZNFir48wR/XHt3MF79jlsUKbtpSVAG4wL7NN:rWBsINOfwR/E79jlebtsVV407b

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\{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}	regsvr32.exe

Modifies registry class 46 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHpr.Invoke.1\CLSID\ = "{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{578FA135-5B7E-4C69-A504-DD72DA6E87B6}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}\TypeLib\ = "{578FA135-5B7E-4C69-A504-DD72DA6E87B6}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHpr.Invoke\CurVer\ = "IEHpr.Invoke.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{578FA135-5B7E-4C69-A504-DD72DA6E87B6}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\791dd2dca7133e4da5dc08714b2cf694985b48829d5d84ddf64003d423a6015c.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHpr.Invoke.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHpr.Invoke\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHpr.Invoke\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{578FA135-5B7E-4C69-A504-DD72DA6E87B6}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{578FA135-5B7E-4C69-A504-DD72DA6E87B6}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{578FA135-5B7E-4C69-A504-DD72DA6E87B6}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}\TypeLib\ = "{578FA135-5B7E-4C69-A504-DD72DA6E87B6}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHpr.Invoke	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}\TypeLib\ = "{578FA135-5B7E-4c69-A504-DD72DA6E87B6}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}\ProgID\ = "IEHpr.Invoke.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\791DD2~1.DLL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{578FA135-5B7E-4C69-A504-DD72DA6E87B6}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{578FA135-5B7E-4C69-A504-DD72DA6E87B6}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHpr.Invoke.1\ = "Invoke Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{578FA135-5B7E-4C69-A504-DD72DA6E87B6}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}\ = "IInvoke"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}\ = "IInvoke"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHpr.Invoke.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}\ = "Invoke Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{578FA135-5B7E-4C69-A504-DD72DA6E87B6}\1.0\ = "Flash ocx 2.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{578FA135-5B7E-4C69-A504-DD72DA6E87B6}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DC7C18FF-E413-4CA6-96E7-39C2D7680FC2}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHpr.Invoke\ = "Invoke Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHpr.Invoke\CLSID\ = "{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A1F546B-F6D2-40dc-BD54-E2D1DCC3895B}\VersionIndependentProgID\ = "IEHpr.Invoke"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4908 wrote to memory of 4340	4908	regsvr32.exe	84
PID 4908 wrote to memory of 4340	4908	regsvr32.exe	84
PID 4908 wrote to memory of 4340	4908	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\791dd2dca7133e4da5dc08714b2cf694985b48829d5d84ddf64003d423a6015c.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4908
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\791dd2dca7133e4da5dc08714b2cf694985b48829d5d84ddf64003d423a6015c.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4340

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

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Downloads

memory/4340-132-0x0000000000000000-mapping.dmp

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