9d71699c2903cd94d6152f10cd733b676579150adc3eb87b048f48b0e77bdf7c

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 13:40

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General

Target

1a552164764b4c75b78202e32cc8821e.dll
Size

40KB
MD5

1a552164764b4c75b78202e32cc8821e
SHA1

bd2b63665f774fe1a39f4d70213f03fdb1653e55
SHA256

9d71699c2903cd94d6152f10cd733b676579150adc3eb87b048f48b0e77bdf7c
SHA512

1a4ce157dc994f8ef1953a21ad1638b5bf44cc52727dd6765110af5cd204e9dfafa6fa897fc8b46eb1a2307432d87009b7f1e0c8af0aa684eff134c278bef209
SSDEEP

768:GZe2Vmjqk5+GiNlccML30S6Gqh/lHCNKs:GTk+GiNScML3H6GDAs

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 2 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\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}\ = "PK IE Plugin"	regsvr32.exe

Modifies registry class 46 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951A}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1a552164764b4c75b78202e32cc8821e.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PK.IE.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PK.IE	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}\ = "IE Plugin Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951A}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951A}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PK.IE.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PK.IE\CurVer\ = "PK.IE.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}\ = "IViewSource"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951A}\1.0\ = "BPK IE Plugin Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951A}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}\TypeLib\ = "{1E1B286C-88FF-11D3-8D96-D7ACAC95951A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PK.IE\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951A}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}\ProgID\ = "PK.IE.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PK.IE.1\ = "IE Plugin Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PK.IE\CLSID\ = "{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}\TypeLib\ = "{1E1B286C-88FF-11D3-8D96-D7ACAC95951A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}\VersionIndependentProgID\ = "PK.IE"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PK.IE\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1A5521~1.DLL"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}\ = "IViewSource"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PK.IE.1\CLSID\ = "{1E1B2879-88FF-11D3-8D96-D7ACAC95951A}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PK.IE\ = "IE Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}\TypeLib\ = "{1E1B286C-88FF-11D3-8D96-D7ACAC95951A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1E1B2878-88FF-11D3-8D96-D7ACAC95951A}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951A}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951A}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1E1B286C-88FF-11D3-8D96-D7ACAC95951A}\1.0\0	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2128	2036	regsvr32.exe	1
PID 2036 wrote to memory of 2128	2036	regsvr32.exe	1
PID 2036 wrote to memory of 2128	2036	regsvr32.exe	1
PID 2036 wrote to memory of 2128	2036	regsvr32.exe	1
PID 2036 wrote to memory of 2128	2036	regsvr32.exe	1
PID 2036 wrote to memory of 2128	2036	regsvr32.exe	1
PID 2036 wrote to memory of 2128	2036	regsvr32.exe	1

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\1a552164764b4c75b78202e32cc8821e.dll
1⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2128

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1a552164764b4c75b78202e32cc8821e.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2036

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

Windows 7 deprecation

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