d027e91b1de51076ef9f8707984192651c4995bf6974ee23568fcbb3bb153e62

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2024, 22:51

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General

Target
8d8f9eb122f3dcb319943ab7d447e998.dll
Size 105KB
Sample240203-2s976sebgl
SHA256 d027e91b1de51076ef9f8707984192651c4995bf6974ee23568fcbb3bb153e62
MD5 8d8f9eb122f3dcb319943ab7d447e998
SHA1 18eec60ebfb129b3763ba852212d74e8137519ef
SHA512 e92185a9fbb8c01ccb598b43880cb1e251ccb75d37f6b4c4c5316c4f5370a42d117e8f9fe57b0483c22271592bb479cec3b92062146e21e17f51674f217db220
SSDEEP 1536:C9V8DJUSGBih2/3uOZFrBFMXlohpGEw0nna5VCW4plBvswyU1JRkb4thAPQkdzst:C96eSGBihMD0NE5AVCW+Bv/pK4foFTa
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware stealer

Malware Config

Signatures

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\{43F7497C-7687-4DEA-A057-F21BD81BC896}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{43F7497C-7687-4DEA-A057-F21BD81BC896}\ = "Microsoft MSJava 32"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{43F7497C-7687-4DEA-A057-F21BD81BC896}	regsvr32.exe

Modifies registry class 51 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.MSJava32\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{43F7497C-7687-4DEA-A057-F21BD81BC896}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{43F7497C-7687-4DEA-A057-F21BD81BC896}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}\TypeLib\ = "{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{43F7497C-7687-4DEA-A057-F21BD81BC896}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{43F7497C-7687-4DEA-A057-F21BD81BC896}\AppID = "{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}\ = "IJava"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{43F7497C-7687-4DEA-A057-F21BD81BC896}\ProgID\ = "Microsoft.MSJava32.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{43F7497C-7687-4DEA-A057-F21BD81BC896}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.MSJava32.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{43F7497C-7687-4DEA-A057-F21BD81BC896}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8d8f9eb122f3dcb319943ab7d447e998.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{43F7497C-7687-4DEA-A057-F21BD81BC896}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.MSJava32\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.MSJava32.1\CLSID\ = "{43F7497C-7687-4DEA-A057-F21BD81BC896}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.MSJava32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}\ = "MSJava32"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\MSJava32.DLL	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{43F7497C-7687-4DEA-A057-F21BD81BC896}\VersionIndependentProgID\ = "Microsoft.MSJava32"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{43F7497C-7687-4DEA-A057-F21BD81BC896}\ = "CJava Object"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8d8f9eb122f3dcb319943ab7d447e998.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}\ = "IJava"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.MSJava32\CLSID\ = "{43F7497C-7687-4DEA-A057-F21BD81BC896}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.MSJava32\CurVer\ = "Microsoft.MSJava32.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}\1.0\HELPDIR\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}\1.0\ = "MSJava32 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{28D2CE37-2D49-4011-B418-E9DD2FC75961}\TypeLib\ = "{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\MSJava32.DLL\AppID = "{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.MSJava32\ = "CJava Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{43F7497C-7687-4DEA-A057-F21BD81BC896}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.MSJava32.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.MSJava32.1\ = "CJava Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{43F7497C-7687-4DEA-A057-F21BD81BC896}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{43F7497C-7687-4DEA-A057-F21BD81BC896}\TypeLib\ = "{3A793B2A-0DD7-4C90-BA18-B92FA8EC0AF5}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4464 wrote to memory of 3656	4464	regsvr32.exe	84
PID 4464 wrote to memory of 3656	4464	regsvr32.exe	84
PID 4464 wrote to memory of 3656	4464	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8d8f9eb122f3dcb319943ab7d447e998.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4464
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8d8f9eb122f3dcb319943ab7d447e998.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:3656

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

Replay Monitor

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Downloads

memory/3656-0-0x0000000010000000-0x0000000010041000-memory.dmp

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