3fd157484c55d7b3871ed546865836985ec4995a38fae1b1719ceed6dfb5bb67

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
19-06-2024 21:20

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General

Target

Kernel/PiPi/JfCheck.dll
Size

218KB
MD5

b1de8a963512abc61cbf3b33cfcc6a0d
SHA1

622eee50f1bd8be28eb7bbf958cb19ec3c5e2143
SHA256

c70a1e2b03f70ca4ff4088eec65a25e5b37accd5e2b0dc50bbe7b57e397c94d2
SHA512

d9c53cdbf076a828586d86ac1f303a302a72e90c166cbbecdcd8756c7f21353090b2818dee6ca23f72e25f13f7c920e0b0d2b63371c9bada599b32f333564734
SSDEEP

3072:D267bQFninpqIRfdJSmkXvcpsAg4JLHaBp4yJ3TBfCTJX5t5RnI19gXqZcbbN:SssFninpNdb76/AgCRgTBq51R2LobN

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\{1A3440C6-F123-4CAB-84EE-C814E1AE0D8F}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1A3440C6-F123-4CAB-84EE-C814E1AE0D8F}\ = "PIPI Link Helper"	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Software\Microsoft\Internet Explorer\URLSearchHooks	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\URLSearchHooks\{1E315374-71A5-471A-B683-4C4ADB5C588B}	regsvr32.exe

Modifies registry class 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.Jfchk\CLSID\ = "{632C6705-17AB-4407-9281-F60D0A7726BE}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{632C6705-17AB-4407-9281-F60D0A7726BE}\ = "Jfchk Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A3440C6-F123-4CAB-84EE-C814E1AE0D8F}\TypeLib\ = "{F6887547-369E-42FB-9921-85DBD895FF76}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.JfURLSearchHook\CurVer\ = "JfCheck.JfURLSearchHook.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1E315374-71A5-471A-B683-4C4ADB5C588B}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2CC10D1C-1032-4570-9BAA-607466123845}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.Jfchk	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.JfURLSearchHook.1\CLSID\ = "{1E315374-71A5-471A-B683-4C4ADB5C588B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1E315374-71A5-471A-B683-4C4ADB5C588B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Kernel\\PiPi\\JfCheck.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2CC10D1C-1032-4570-9BAA-607466123845}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2FA20E2A-496E-4CAC-8D07-B5C227EBD3FA}\TypeLib\ = "{F6887547-369E-42FB-9921-85DBD895FF76}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A3440C6-F123-4CAB-84EE-C814E1AE0D8F}\ = "PIPI Link Helper"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F6887547-369E-42FB-9921-85DBD895FF76}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Kernel\\PiPi\\JfCheck.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{51C2E23D-3022-4A1F-AD4F-AFFE2812F8FC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2FA20E2A-496E-4CAC-8D07-B5C227EBD3FA}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A3440C6-F123-4CAB-84EE-C814E1AE0D8F}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.JfURLSearchHook.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2CC10D1C-1032-4570-9BAA-607466123845}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{51C2E23D-3022-4A1F-AD4F-AFFE2812F8FC}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A3440C6-F123-4CAB-84EE-C814E1AE0D8F}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.MVSearch\ = "PIPI Link Helper"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A3440C6-F123-4CAB-84EE-C814E1AE0D8F}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.JfURLSearchHook\ = "PIPI Link Helper"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.JfURLSearchHook\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1E315374-71A5-471A-B683-4C4ADB5C588B}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{51C2E23D-3022-4A1F-AD4F-AFFE2812F8FC}\ = "IMVSearch"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{632C6705-17AB-4407-9281-F60D0A7726BE}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1E315374-71A5-471A-B683-4C4ADB5C588B}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{632C6705-17AB-4407-9281-F60D0A7726BE}\TypeLib\ = "{F6887547-369E-42FB-9921-85DBD895FF76}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2FA20E2A-496E-4CAC-8D07-B5C227EBD3FA}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.Jfchk.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.Jfchk\CurVer\ = "JfCheck.Jfchk.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{632C6705-17AB-4407-9281-F60D0A7726BE}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.MVSearch.1\CLSID\ = "{1A3440C6-F123-4CAB-84EE-C814E1AE0D8F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.MVSearch\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F6887547-369E-42FB-9921-85DBD895FF76}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2CC10D1C-1032-4570-9BAA-607466123845}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.Jfchk.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{51C2E23D-3022-4A1F-AD4F-AFFE2812F8FC}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{51C2E23D-3022-4A1F-AD4F-AFFE2812F8FC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1E315374-71A5-471A-B683-4C4ADB5C588B}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F6887547-369E-42FB-9921-85DBD895FF76}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{632C6705-17AB-4407-9281-F60D0A7726BE}\MiscStatus	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A3440C6-F123-4CAB-84EE-C814E1AE0D8F}\VersionIndependentProgID\ = "JfCheck.MVSearch"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.JfURLSearchHook.1\ = "PIPI Link Helper"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{632C6705-17AB-4407-9281-F60D0A7726BE}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.JfURLSearchHook\CLSID\ = "{1E315374-71A5-471A-B683-4C4ADB5C588B}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F6887547-369E-42FB-9921-85DBD895FF76}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{51C2E23D-3022-4A1F-AD4F-AFFE2812F8FC}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2FA20E2A-496E-4CAC-8D07-B5C227EBD3FA}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.MVSearch	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F6887547-369E-42FB-9921-85DBD895FF76}\1.0\ = "JfCheck 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{632C6705-17AB-4407-9281-F60D0A7726BE}\VersionIndependentProgID\ = "JfCheck.Jfchk"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2CC10D1C-1032-4570-9BAA-607466123845}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2FA20E2A-496E-4CAC-8D07-B5C227EBD3FA}\ = "IJfURLSearchHook"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2FA20E2A-496E-4CAC-8D07-B5C227EBD3FA}\TypeLib\ = "{F6887547-369E-42FB-9921-85DBD895FF76}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.Jfchk\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{632C6705-17AB-4407-9281-F60D0A7726BE}\MiscStatus\1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1A3440C6-F123-4CAB-84EE-C814E1AE0D8F}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2CC10D1C-1032-4570-9BAA-607466123845}\TypeLib\ = "{F6887547-369E-42FB-9921-85DBD895FF76}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2FA20E2A-496E-4CAC-8D07-B5C227EBD3FA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.Jfchk\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{632C6705-17AB-4407-9281-F60D0A7726BE}\MiscStatus\1\ = "131473"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\JfCheck.JfURLSearchHook	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 3212	1528	regsvr32.exe	84
PID 1528 wrote to memory of 3212	1528	regsvr32.exe	84
PID 1528 wrote to memory of 3212	1528	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Kernel\PiPi\JfCheck.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\Kernel\PiPi\JfCheck.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:3212

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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