4fb17ba8b6943800a972385c7fde7e8e45fc4b1a6b6edfb0dcdad3671243f480

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-09-2024 05:02

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General

Target

temp/modules/addr.dll
Size

175KB
MD5

fd5651a643324b4fd69b19a3f7f9b1da
SHA1

babbb4b0e5273751c48f54a9e27515ced2ee47ce
SHA256

9800c9bddee74939b2f2e839aa682a10c9e09a680018c306ff2720bf3cb5e27b
SHA512

c158a49bebb9f5500894113b68d9807fb02057a04fc75bfcead8d58abc3f0316ea4f09ecca727bd2fbf031931294877813661f079463bccfbba750e8cb603bb1
SSDEEP

3072:vrWydRbYSW9NxgGfavDNV9cuZ7B2DLBZ6K10XpXjl1u0ZhD:vJsmGibYdgu0dP5ZhD

Score

6^/10

adware discovery 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\{BDF21482-8187-4ca5-9CCE-ED098654974E}	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}\TypeLib\ = "{BDF21481-8187-4CA5-9CCE-ED098654974E}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NetDictAddr.IEHlprObj\CurVer\ = "NetDictAddr.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BDF21482-8187-4ca5-9CCE-ED098654974E}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BDF21482-8187-4ca5-9CCE-ED098654974E}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\temp\\modules\\addr.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDF21481-8187-4CA5-9CCE-ED098654974E}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NetDictAddr.IEHlprObj.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDF21481-8187-4CA5-9CCE-ED098654974E}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDF21481-8187-4CA5-9CCE-ED098654974E}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDF21481-8187-4CA5-9CCE-ED098654974E}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\temp\\modules\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NetDictAddr.IEHlprObj.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NetDictAddr.IEHlprObj\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BDF21482-8187-4ca5-9CCE-ED098654974E}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDF21481-8187-4CA5-9CCE-ED098654974E}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NetDictAddr.IEHlprObj.1\ = "NetDictAddr Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BDF21482-8187-4ca5-9CCE-ED098654974E}\VersionIndependentProgID\ = "NetDictAddr.IEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDF21481-8187-4CA5-9CCE-ED098654974E}\1.0\ = "NetDictAddr 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\NetDictAddr.IEHlprObj	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BDF21482-8187-4ca5-9CCE-ED098654974E}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDF21481-8187-4CA5-9CCE-ED098654974E}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDF21481-8187-4CA5-9CCE-ED098654974E}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\temp\\modules\\addr.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDF21481-8187-4CA5-9CCE-ED098654974E}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}\TypeLib\ = "{BDF21481-8187-4CA5-9CCE-ED098654974E}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NetDictAddr.IEHlprObj.1\CLSID\ = "{BDF21482-8187-4ca5-9CCE-ED098654974E}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BDF21482-8187-4ca5-9CCE-ED098654974E}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BDF21482-8187-4ca5-9CCE-ED098654974E}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BDF21482-8187-4ca5-9CCE-ED098654974E}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BDF21480-8187-4CA5-9CCE-ED098654974E}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\NetDictAddr.IEHlprObj\ = "NetDictAddr Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BDF21482-8187-4ca5-9CCE-ED098654974E}\ = "NetDictAddr Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BDF21482-8187-4ca5-9CCE-ED098654974E}\ProgID\ = "NetDictAddr.IEHlprObj.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BDF21481-8187-4CA5-9CCE-ED098654974E}\1.0\FLAGS\ = "0"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 352 wrote to memory of 2508	352	regsvr32.exe	30
PID 352 wrote to memory of 2508	352	regsvr32.exe	30
PID 352 wrote to memory of 2508	352	regsvr32.exe	30
PID 352 wrote to memory of 2508	352	regsvr32.exe	30
PID 352 wrote to memory of 2508	352	regsvr32.exe	30
PID 352 wrote to memory of 2508	352	regsvr32.exe	30
PID 352 wrote to memory of 2508	352	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\temp\modules\addr.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:352
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\temp\modules\addr.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2508

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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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