f891efa0e0875da6ed67451e69371e27a96ad6669f032e81dbd0e730bcbeb7af

Analysis

max time kernel
149s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
16/05/2026, 06:11

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General

Target
scrrun.dll
Size 144KB
Sample260516-gxmx8aev4k
SHA256 f891efa0e0875da6ed67451e69371e27a96ad6669f032e81dbd0e730bcbeb7af
MD5 7d02d7ed5a39000a711ba566c532382a
SHA1 0783528f88f93d1e8c2fbbb85097f9418697387a
SHA512 cf17f81afaa1f2eca1132253baa6c10029aefea97ee893f2a5429b1e63fbe98720d2b2e70277447016545faa9773ca249f560da16e7d82c1f4e351903f0226cf
SSDEEP 3072:B8ympKqOnKhNniftZ/hRk7fDSVTDkhAi6wXKi1Wux1CnroRRvkxSwJBNaN918Pm4:osKCr/jk7Lx3KARvsW9c5
TLSH
T182E34B527BC5C0B9D8A23D3D5DF722576332BE281E229ACB63603B6D2D33206961D357
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 64 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{32DA2B15-CFED-11D1-B747-00C04FC2B085}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Scripting.Encoder\ = "Script Encoder Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ASP.HostEncode	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{85131630-480C-11D2-B1F9-00C04F86C324}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{85131630-480C-11D2-B1F9-00C04F86C324}\Implemented Categories	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\JSFile\ScriptHostEncode\ = "{85131630-480C-11D2-B1F9-00C04F86C324}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Scripting.Dictionary	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\HTML.HostEncode	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{85131631-480C-11D2-B1F9-00C04F86C324}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBSFile.HostEncode	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ScriptHostEncode	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBSFile	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EE09B103-97E0-11CF-978F-00A02463E06F}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EE09B103-97E0-11CF-978F-00A02463E06F}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CF774D0-F077-11D1-B1BC-00C04F86C324}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\HTML.HostEncode\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CF774D1-F077-11D1-B1BC-00C04F86C324}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\JSFile.HostEncode\CLSID	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2824035265-2271499813-2042964211-1000_Classes\.htm	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2824035265-2271499813-2042964211-1000_Classes\.html	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Scripting.Dictionary\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Scripting.FileSystemObject	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{85131631-480C-11D2-B1F9-00C04F86C324}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.asp	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\aspfile\ScriptHostEncode\ = "{0CF774D1-F077-11D1-B1BC-00C04F86C324}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EE09B103-97E0-11CF-978F-00A02463E06F}\Implemented Categories\{7DD95801-9882-11CF-9FA9-00AA006C42C4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EE09B103-97E0-11CF-978F-00A02463E06F}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Scripting.Dictionary\ = "Scripting.Dictionary"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CF774D0-F077-11D1-B1BC-00C04F86C324}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\VBSFile.HostEncode\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ScriptHostEncode\ = "{0CF774D0-F077-11D1-B1BC-00C04F86C324}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{420B2830-E718-11CF-893D-00A0C9054228}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{32DA2B15-CFED-11D1-B747-00C04FC2B085}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{32DA2B15-CFED-11D1-B747-00C04FC2B085}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{32DA2B15-CFED-11D1-B747-00C04FC2B085}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{32DA2B15-CFED-11D1-B747-00C04FC2B085}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0D43FE01-F093-11CF-8940-00A0C9054228}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0D43FE01-F093-11CF-8940-00A0C9054228}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Scripting.Encoder\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{85131631-480C-11D2-B1F9-00C04F86C324}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.asa	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.js	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CF774D1-F077-11D1-B1BC-00C04F86C324}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ASP.HostEncode\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{85131630-480C-11D2-B1F9-00C04F86C324}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\aspfile	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\JSFile	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.vbs	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0D43FE01-F093-11CF-8940-00A0C9054228}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0D43FE01-F093-11CF-8940-00A0C9054228}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Scripting.FileSystemObject\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EE09B103-97E0-11CF-978F-00A02463E06F}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0D43FE01-F093-11CF-8940-00A0C9054228}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{32DA2B15-CFED-11D1-B747-00C04FC2B085}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Scripting.Encoder	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CF774D1-F077-11D1-B1BC-00C04F86C324}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\aspfile\ScriptHostEncode	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\VBSFile\ScriptHostEncode\ = "{85131631-480C-11D2-B1F9-00C04F86C324}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{420B2830-E718-11CF-893D-00A0C9054228}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CF774D0-F077-11D1-B1BC-00C04F86C324}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0CF774D1-F077-11D1-B1BC-00C04F86C324}\Implemented Categories	regsvr32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 2240	2152	regsvr32.exe	81

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\scrrun.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\scrrun.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2240

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

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