64568e85a793e646b9e9423f8e8d61b932761a8a1f96c185cd9eeadf62754067

Analysis

max time kernel
93s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2024, 00:29

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General

Target
8aec72e6d76ab58850301deca2de7b90.dll
Size 85KB
Sample240203-asyetscfg6
SHA256 64568e85a793e646b9e9423f8e8d61b932761a8a1f96c185cd9eeadf62754067
MD5 8aec72e6d76ab58850301deca2de7b90
SHA1 727e032f40ef7628570da28d49177a9571d80329
SHA512 534e3862f56ae378040ab5d125043b45355bfec420b8e414f2e8ccf10d306fa156d7ef166285f068880014f29923e5f17a8b447da8d5f8f6fefcac9638c95e5a
SSDEEP 1536:rAmQWaSa3jcBuRJA391mQitlsPxN4lbA+LFmRVwuwuT5NlBFclM:rAmZY4B+JK9sztls00qF4YuT5NlBFcq
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware 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\{F08A493E-3FEF-4372-8AF3-FEB2735FEC36}	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerOhb.ExplorerOhb\ = "ExplorerOhb Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerOhb.ExplorerOhb.1\CLSID\ = "{F08A493E-3FEF-4372-8AF3-FEB2735FEC36}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F08A493E-3FEF-4372-8AF3-FEB2735FEC36}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F08A4930-3FEF-4372-8AF3-FEB2735FEC36}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F08A493E-3FEF-4372-8AF3-FEB2735FEC36}\ = "ExplorerOhb Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}\TypeLib\ = "{F08A4930-3FEF-4372-8AF3-FEB2735FEC36}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerOhb.ExplorerOhb.1\ = "ExplorerOhb Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F08A493E-3FEF-4372-8AF3-FEB2735FEC36}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8aec72e6d76ab58850301deca2de7b90.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F08A4930-3FEF-4372-8AF3-FEB2735FEC36}\1.0\ = "IEAdsKill 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F08A4930-3FEF-4372-8AF3-FEB2735FEC36}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerOhb.ExplorerOhb.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerOhb.ExplorerOhb\CurVer\ = "ExplorerOhb.ExplorerOhb.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F08A493E-3FEF-4372-8AF3-FEB2735FEC36}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F08A493E-3FEF-4372-8AF3-FEB2735FEC36}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F08A4930-3FEF-4372-8AF3-FEB2735FEC36}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F08A4930-3FEF-4372-8AF3-FEB2735FEC36}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}\ = "IExplorerOhb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerOhb.ExplorerOhb.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerOhb.ExplorerOhb\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F08A493E-3FEF-4372-8AF3-FEB2735FEC36}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F08A4930-3FEF-4372-8AF3-FEB2735FEC36}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8aec72e6d76ab58850301deca2de7b90.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}\ = "IExplorerOhb"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F08A493E-3FEF-4372-8AF3-FEB2735FEC36}\VersionIndependentProgID\ = "ExplorerOhb.ExplorerOhb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F08A4930-3FEF-4372-8AF3-FEB2735FEC36}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F08A4930-3FEF-4372-8AF3-FEB2735FEC36}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F08A4930-3FEF-4372-8AF3-FEB2735FEC36}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}\TypeLib\ = "{F08A4930-3FEF-4372-8AF3-FEB2735FEC36}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ExplorerOhb.ExplorerOhb	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F08A493E-3FEF-4372-8AF3-FEB2735FEC36}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F08A493E-3FEF-4372-8AF3-FEB2735FEC36}\ProgID\ = "ExplorerOhb.ExplorerOhb.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F08A493E-3FEF-4372-8AF3-FEB2735FEC36}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F08A4930-3FEF-4372-8AF3-FEB2735FEC36}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F08A493D-3FEF-4372-8AF3-FEB2735FEC36}\ProxyStubClsid32	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 3196	2688	regsvr32.exe	86
PID 2688 wrote to memory of 3196	2688	regsvr32.exe	86
PID 2688 wrote to memory of 3196	2688	regsvr32.exe	86

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8aec72e6d76ab58850301deca2de7b90.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8aec72e6d76ab58850301deca2de7b90.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:3196

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/3196-0-0x0000000010000000-0x000000001002C000-memory.dmp

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