f76ec4ae6e81cef2d0099d897f1424ce813d8a655a58f064c7a572b740119b91

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
dmsynth.dll
Size 98KB
Sample260907-p8nb5avygx
SHA256 f76ec4ae6e81cef2d0099d897f1424ce813d8a655a58f064c7a572b740119b91
MD5 415235edaa4cee387bea7903847b1530
SHA1 8d503ad58bcc233f97b2c9b067ae022cff04c60a
SHA512 8de274ceb44412e4c177b4f74f941c9f124833b72b0a32d41c746253302e83733c6e9e8ca54df190e756cf1314ad282b675e79fa8a23526922bc9769a8334504
SSDEEP 1536:tGjsOAIBRqtvWRbr6QsndNgL1ciyZR7TpbFcE8VfZ9roux2srOpaGOSk:t7IusJrNsnduL1KxOwwOpaGOSk
TLSH
T117A37E52FEA641FAEC82EA35940B73B397769F158515818393A0FF7C69302C1B97D322
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 25 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynthSink\ = "DirectMusicSynthSink"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynthSink\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{58C2B4D0-46E7-11D1-89AC-00A0C9054129}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{58C2B4D0-46E7-11D1-89AC-00A0C9054129}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynth	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AEC17CE3-A514-11D1-AFA6-00AA0024D8B6}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynthSink.1\ = "DirectMusicSynthSink"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynthSink.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{58C2B4D0-46E7-11D1-89AC-00A0C9054129}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynth\ = "DirectMusicSynth"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynth\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AEC17CE3-A514-11D1-AFA6-00AA0024D8B6}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AEC17CE3-A514-11D1-AFA6-00AA0024D8B6}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynthSink.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{58C2B4D0-46E7-11D1-89AC-00A0C9054129}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynth.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynth.1\ = "DirectMusicSynth"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynthSink\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynthSink\CurVer\ = "Microsoft.DirectMusicSynthSink.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynth\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynth\CurVer\ = "Microsoft.DirectMusicSynth.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynth.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AEC17CE3-A514-11D1-AFA6-00AA0024D8B6}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.DirectMusicSynthSink	regsvr32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4776 wrote to memory of 2864	4776	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dmsynth.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4776
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\dmsynth.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2864

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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