e2c87737cc84259d72301d42f4f62bb842ceff4c2ffdb342a81a694aa7a1e7e3

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
28/04/2026, 22:30

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
Firefox/AccessibleHandler.dll
Size 121KB
Sample260428-2e6b3aez81
SHA256 e2c87737cc84259d72301d42f4f62bb842ceff4c2ffdb342a81a694aa7a1e7e3
MD5 98815ba20aaab292802f85f0b120089b
SHA1 a4960228d83780c8535be5be12ed08b5215b9a3f
SHA512 68da2f6bfa557167af3ec38de8a711e6b1d22d1dc1892af69a403fd27c7ffd540e6c6c3477c42fa52cdd50835e0dde13084a6760298c1f39a3b8e67128f648bd
SSDEEP 3072:zFAh4ZFiJ4J45KIHenM/qIL5y1DmWGeSKWStqFgQr:G4ZFi/D+2L56S6gg
TLSH
T115C36B01B582C0B1C27F0A380C76A762477E7D24CEA19F2B6B983B5D1FB45D0AE35E65
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

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 31 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE573FAF-7815-4FC2-A031-B092268ACE9E}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E089670-4F57-41A7-89C0-37F17482FA6F}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{18E2488D-310F-400F-8339-0E50B513E801}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{18E2488D-310F-400F-8339-0E50B513E801}\ProxyStubClsid32\ = "{8E089670-4F57-41A7-89C0-37F17482FA6F}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2B715CCE-1790-4FE1-AEF5-48BB5ACDF3A1}\ProxyStubClsid32\ = "{8E089670-4F57-41A7-89C0-37F17482FA6F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E089670-4F57-41A7-89C0-37F17482FA6F}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E089670-4F57-41A7-89C0-37F17482FA6F}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Firefox\\AccessibleHandler.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E089670-4F57-41A7-89C0-37F17482FA6F}\InProcServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E089670-4F57-41A7-89C0-37F17482FA6F}\ = "PSFactoryBuffer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{18E2488D-310F-400F-8339-0E50B513E801}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2B715CCE-1790-4FE1-AEF5-48BB5ACDF3A1}\NumMethods\ = "5"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E089670-4F57-41A7-89C0-37F17482FA6F}\ = "AsyncIHandlerControl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{18E2488D-310F-400F-8339-0E50B513E801}\NumMethods	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2B715CCE-1790-4FE1-AEF5-48BB5ACDF3A1}\NumMethods	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3119821332-640943685-2562343641-1000_Classes\WOW6432Node\Interface	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{18E2488D-310F-400F-8339-0E50B513E801}\ = "IGeckoBackChannel"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{18E2488D-310F-400F-8339-0E50B513E801}\NumMethods\ = "8"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2B715CCE-1790-4FE1-AEF5-48BB5ACDF3A1}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2B715CCE-1790-4FE1-AEF5-48BB5ACDF3A1}\ = "IHandlerControl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2B715CCE-1790-4FE1-AEF5-48BB5ACDF3A1}\AsynchronousInterface	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE573FAF-7815-4FC2-A031-B092268ACE9E}\InprocHandler32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE573FAF-7815-4FC2-A031-B092268ACE9E}\InprocHandler32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Firefox\\AccessibleHandler.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E089670-4F57-41A7-89C0-37F17482FA6F}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2B715CCE-1790-4FE1-AEF5-48BB5ACDF3A1}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E089670-4F57-41A7-89C0-37F17482FA6F}\SynchronousInterface	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E089670-4F57-41A7-89C0-37F17482FA6F}\SynchronousInterface\ = "{2B715CCE-1790-4FE1-AEF5-48BB5ACDF3A1}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3119821332-640943685-2562343641-1000_Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E089670-4F57-41A7-89C0-37F17482FA6F}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8E089670-4F57-41A7-89C0-37F17482FA6F}\NumMethods\ = "7"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE573FAF-7815-4FC2-A031-B092268ACE9E}\InprocHandler32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2B715CCE-1790-4FE1-AEF5-48BB5ACDF3A1}\AsynchronousInterface\ = "{8E089670-4F57-41A7-89C0-37F17482FA6F}"	regsvr32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 3152 wrote to memory of 1852	3152	regsvr32.exe	79

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Firefox\AccessibleHandler.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3152
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\Firefox\AccessibleHandler.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1852

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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 v16

Replay Monitor

Loading Replay Monitor...

Downloads