00721b85bca70226d4d6f756c7527d71b526c949a0b603c3c17a4c3da4612bb1

Analysis

max time kernel
298s
max time network
292s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
23/04/2026, 12:38

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General

Target
182801.dll
Size 1.0MB
Sample260423-pvkdbadv3x
SHA256 00721b85bca70226d4d6f756c7527d71b526c949a0b603c3c17a4c3da4612bb1
MD5 ddc85eff55a22dc0992cbf5a1ea82aaf
SHA1 16c197deb0deab617a2752e0be832f9795a998f0
SHA512 ee2319732d83466afaa6772e126e5ddc8ec9f37c78a5c0402cb2000887006936a8b13e68bb4cf549ec4107995cc93f08fd1cea46d97cf5676a2b076bcc6008c7
SSDEEP 24576:vJvWSoylP9NIiD9PrN4zRSSw6quolZQ1y6rQ3ZvEHIFxT/u:vD4TwBjQ866EHIF1/u
TLSH
T1B3355C22F840C176E9DA0072E57EBABA26FCD226172951CBD3481D366D712C36B3C6D7
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 26 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\WOW6432Node\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\ = "Debug Information Accessor"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\182801.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\ = "Generic StackWalker"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\182801.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\182801.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\182801.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\ = "dia 2.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}\2.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6756135-1E65-4D17-8576-610761398C3C}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91904831-49CA-4766-B95C-25397E2DD6DC}\ = "Debug Information Accessor w/o Global Memory Usage"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CE4A85DB-5768-475B-A4E1-C0BCA2112A6B}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{106173A0-0173-4E5C-84E7-E915422BE997}	regsvr32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 5016	4664	regsvr32.exe	80

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\182801.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4664
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\182801.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:5016

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

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Downloads

memory/5016-0-0x0000000000A90000-0x0000000000B0C000-memory.dmp

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