ee281503a73a98239b3dd7f2ac2c3f313f2d1e2ec0f3ba39d6d177e97d9894ea

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
07/09/2026, 13:00

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General

Target
dmstyle.dll
Size 96KB
Sample260907-p8nb5avygx
SHA256 ee281503a73a98239b3dd7f2ac2c3f313f2d1e2ec0f3ba39d6d177e97d9894ea
MD5 6f6e5c08b164f4350b0f1c5110af3963
SHA1 7ccbb74150f8bdf7b74e438e06cbff949d44c648
SHA512 4ae3d4d0f5d889ee4c43bc808732c0cadc9a1d74bca47647dfddcffef8eae1695e916f23f438c75277c2d348c53fcc09de0b086e07d87352e1f0f52bb28377e5
SSDEEP 1536:HgKTQGLwfvrhCqa7KcCiOIHzZtxwDl0L/pgupbATi7mV9FX2/FNm/+:HvTQG0fUKcMIvCDlsqCbQrVfG6/+
TLSH
T1F6A37C52B3DAC037E65651319A18B3EA73FAC718282AB5077B145E8DBBB04C1D3BD607
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\Microsoft.DirectMusicStyle	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicCommandTrack\ = "DirectMusicCommandTrack"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicStyleTrack.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288E-B39B-11D1-8704-00600893B1BD}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288E-B39B-11D1-8704-00600893B1BD}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC2898-B39B-11D1-8704-00600893B1BD}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicMuteTrack.1\ = "DirectMusicMuteTrack"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3F037241-414E-11D1-A7CE-00A0C913F73C}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicChordTrack	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicCommandTrack.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC2897-B39B-11D1-8704-00600893B1BD}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSection\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSection\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288D-B39B-11D1-8704-00600893B1BD}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288B-B39B-11D1-8704-00600893B1BD}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicStyleTrack\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC2898-B39B-11D1-8704-00600893B1BD}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicMuteTrack\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicAuditionTrack.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicChordTrack\CurVer\ = "Microsoft.DirectMusicChordTrack.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicChordTrack.1\ = "DirectMusicChordTrack"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288C-B39B-11D1-8704-00600893B1BD}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288C-B39B-11D1-8704-00600893B1BD}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicCommandTrack\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicCommandTrack.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288D-B39B-11D1-8704-00600893B1BD}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicMotifTrack\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSection	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSection\CurVer\ = "Microsoft.DirectMusicSection.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicChordTrack\ = "DirectMusicChordTrack"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicStyleTrack.1\ = "DirectMusicStyleTrack"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicMotifTrack	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicMotifTrack\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicMotifTrack.1\ = "DirectMusicMotifTrack"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3F037241-414E-11D1-A7CE-00A0C913F73C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288A-B39B-11D1-8704-00600893B1BD}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3F037241-414E-11D1-A7CE-00A0C913F73C}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicChordTrack\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicCommandTrack	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicMotifTrack\ = "DirectMusicMotifTrack"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicMuteTrack\CurVer\ = "Microsoft.DirectMusicMuteTrack.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC2897-B39B-11D1-8704-00600893B1BD}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicStyle\CurVer\ = "Microsoft.DirectMusicStyle.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288B-B39B-11D1-8704-00600893B1BD}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288B-B39B-11D1-8704-00600893B1BD}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicChordTrack.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicCommandTrack.1\ = "DirectMusicCommandTrack"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288D-B39B-11D1-8704-00600893B1BD}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288E-B39B-11D1-8704-00600893B1BD}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC2898-B39B-11D1-8704-00600893B1BD}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288A-B39B-11D1-8704-00600893B1BD}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicStyle\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSection.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288C-B39B-11D1-8704-00600893B1BD}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicMuteTrack\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicMuteTrack.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC2897-B39B-11D1-8704-00600893B1BD}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288A-B39B-11D1-8704-00600893B1BD}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicChordTrack\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicChordTrack.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC288E-B39B-11D1-8704-00600893B1BD}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D2AC2898-B39B-11D1-8704-00600893B1BD}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicStyle\CLSID	regsvr32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4464 wrote to memory of 4912	4464	regsvr32.exe	87

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dmstyle.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4464
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\dmstyle.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:4912

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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