4b481585f55cab0dd514a9e4c65c71587e2695b527dd9e94e828277d712bb9d4

Analysis

max time kernel
41s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
28/11/2022, 06:18

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General

Target

4b481585f55cab0dd514a9e4c65c71587e2695b527dd9e94e828277d712bb9d4.dll
Size

248KB
MD5

38dcf72fcdd4c9d8133a7c5ed59afbff
SHA1

5dfb480216d8a6ba230b04aef53257c5d726c4d3
SHA256

4b481585f55cab0dd514a9e4c65c71587e2695b527dd9e94e828277d712bb9d4
SHA512

7f1df60416ea97bcd150a890faa5e6c5c6ae84eabbfdb1200cbb78c8530a23a3a05d17e3ce06435e8ed55c78a794c77056c55106913da6b5340aa76fcebf8596
SSDEEP

3072:grhcH+gXNN7ysh4vkbZvWYdWMZwVZ1WDTSgrxwPvi44YBauccqTa3w:wcH+ghZ5WM6VPWD2yzKauC+w

Score

8^/10

adware persistence stealer

Malware Config

Signatures

Sets file execution options in registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ctfmon.exe	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ctfmon.exe\Debugger = "C:\\Windows\\system32\\ctfmonjdi.exe"	regsvr32.exe

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

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{10602E62-95C9-3DD5-B224-80061AD3D14B}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{10602E62-95C9-3DD5-B224-80061AD3D14B}\IExplore = "1"	regsvr32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ctfmonjdi.exe	regsvr32.exe

Modifies registry class 41 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}\TypeLib\ = "{B31E7349-33AF-36D6-AFEB-E03C6C819A1B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{10602E62-95C9-3DD5-B224-80061AD3D14B}\ = "D"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{10602E62-95C9-3DD5-B224-80061AD3D14B}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B31E7349-33AF-36D6-AFEB-E03C6C819A1B}\1.0\ = "LIB"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{10602E62-95C9-3DD5-B224-80061AD3D14B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B31E7349-33AF-36D6-AFEB-E03C6C819A1B}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4b481585f55cab0dd514a9e4c65c71587e2695b527dd9e94e828277d712bb9d4.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B31E7349-33AF-36D6-AFEB-E03C6C819A1B}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID\ = "{10602E62-95C9-3DD5-B224-80061AD3D14B}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B31E7349-33AF-36D6-AFEB-E03C6C819A1B}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{10602E62-95C9-3DD5-B224-80061AD3D14B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4b481585f55cab0dd514a9e4c65c71587e2695b527dd9e94e828277d712bb9d4.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B31E7349-33AF-36D6-AFEB-E03C6C819A1B}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B31E7349-33AF-36D6-AFEB-E03C6C819A1B}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\ = "D"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{10602E62-95C9-3DD5-B224-80061AD3D14B}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID\ = "{10602E62-95C9-3DD5-B224-80061AD3D14B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{10602E62-95C9-3DD5-B224-80061AD3D14B}\ProgID\ = "D.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B31E7349-33AF-36D6-AFEB-E03C6C819A1B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B31E7349-33AF-36D6-AFEB-E03C6C819A1B}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}\TypeLib\ = "{B31E7349-33AF-36D6-AFEB-E03C6C819A1B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D\ = "D"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}\ = "IDOMPeek"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{10602E62-95C9-3DD5-B224-80061AD3D14B}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}\ = "IDOMPeek"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{10602E62-95C9-3DD5-B224-80061AD3D14B}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B31E7349-33AF-36D6-AFEB-E03C6C819A1B}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B31E7349-33AF-36D6-AFEB-E03C6C819A1B}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C023B273-C91A-3DCA-8614-36F065A36250}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{10602E62-95C9-3DD5-B224-80061AD3D14B}\VersionIndependentProgID\ = "D"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 1016	1660	regsvr32.exe	27
PID 1660 wrote to memory of 1016	1660	regsvr32.exe	27
PID 1660 wrote to memory of 1016	1660	regsvr32.exe	27
PID 1660 wrote to memory of 1016	1660	regsvr32.exe	27
PID 1660 wrote to memory of 1016	1660	regsvr32.exe	27
PID 1660 wrote to memory of 1016	1660	regsvr32.exe	27
PID 1660 wrote to memory of 1016	1660	regsvr32.exe	27

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\4b481585f55cab0dd514a9e4c65c71587e2695b527dd9e94e828277d712bb9d4.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\4b481585f55cab0dd514a9e4c65c71587e2695b527dd9e94e828277d712bb9d4.dll
  2⤵
  - Sets file execution options in registry
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - Modifies registry class
  PID:1016

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

T1176

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1016-56-0x0000000075F51000-0x0000000075F53000-memory.dmp

Filesize
8KB

Download
memory/1660-54-0x000007FEFB871000-0x000007FEFB873000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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