Overview
overview
6Static
static
3Microsoft.Ink.dll
windows10-2004-x64
3Microsoft.Ink.dll
windows11-ltsc_2024-x64
3OpenTK.dll
windows10-2004-x64
1OpenTK.dll
windows11-ltsc_2024-x64
1avcodec-51.dll
windows10-2004-x64
3avcodec-51.dll
windows11-ltsc_2024-x64
3avformat-52.dll
windows10-2004-x64
3avformat-52.dll
windows11-ltsc_2024-x64
3avutil-49.dll
windows10-2004-x64
3avutil-49.dll
windows11-ltsc_2024-x64
3bass.dll
windows10-2004-x64
3bass.dll
windows11-ltsc_2024-x64
3bass_fx.dll
windows10-2004-x64
3bass_fx.dll
windows11-ltsc_2024-x64
3d3dcompiler_47.dll
windows10-2004-x64
3d3dcompiler_47.dll
windows11-ltsc_2024-x64
3libEGL.dll
windows10-2004-x64
3libEGL.dll
windows11-ltsc_2024-x64
3libGLESv2.dll
windows10-2004-x64
3libGLESv2.dll
windows11-ltsc_2024-x64
3osu!.exe
windows10-2004-x64
6osu!.exe
windows11-ltsc_2024-x64
6osu!auth.dll
windows10-2004-x64
3osu!auth.dll
windows11-ltsc_2024-x64
3osu!gameplay.dll
windows10-2004-x64
1osu!gameplay.dll
windows11-ltsc_2024-x64
1osu!seasonal.dll
windows10-2004-x64
1osu!seasonal.dll
windows11-ltsc_2024-x64
1osu!ui.dll
windows10-2004-x64
1osu!ui.dll
windows11-ltsc_2024-x64
1osu.dll
windows10-2004-x64
3osu.dll
windows11-ltsc_2024-x64
3Analysis
- max time kernel
149s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
05/08/2026, 03:18
Static task
static1
Behavioral task
behavioral1
Sample
Microsoft.Ink.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Microsoft.Ink.dll
Resource
win11ltsc2024-20260710-en
Behavioral task
behavioral3
Sample
OpenTK.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
OpenTK.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral5
Sample
avcodec-51.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral6
Sample
avcodec-51.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral7
Sample
avformat-52.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral8
Sample
avformat-52.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral9
Sample
avutil-49.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral10
Sample
avutil-49.dll
Resource
win11ltsc2024-20260710-en
Behavioral task
behavioral11
Sample
bass.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral12
Sample
bass.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral13
Sample
bass_fx.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral14
Sample
bass_fx.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral15
Sample
d3dcompiler_47.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral16
Sample
d3dcompiler_47.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral17
Sample
libEGL.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral18
Sample
libEGL.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral19
Sample
libGLESv2.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral20
Sample
libGLESv2.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral21
Sample
osu!.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral22
Sample
osu!.exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral23
Sample
osu!auth.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral24
Sample
osu!auth.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral25
Sample
osu!gameplay.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral26
Sample
osu!gameplay.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral27
Sample
osu!seasonal.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral28
Sample
osu!seasonal.dll
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral29
Sample
osu!ui.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral30
Sample
osu!ui.dll
Resource
win11ltsc2024-20260710-en
Behavioral task
behavioral31
Sample
osu.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral32
Sample
osu.dll
Resource
win11ltsc2024-20260709-en
General
- Target bass_fx.dll
- Size 50KB
- Sample260805-dtmlhaxclg
- SHA256 81111a1cb6f8f362cf232e21098c563fe1409160300f2a254f2a1762e5d4db04
- MD5 3ad3c0fd4dca001a2f9e707b74544919
- SHA1 c6176415ecd3e8f38f976e4234325452fe1fd2a0
- SHA512 436dac92e4a60dfc02c8c7a7ae496df7199c3fd15ef668bff2565f428f25be9c3ae1d0e120d64767eda1a9d4afa2e8bfeb6d047745440c3fce854080c44f42c5
- SSDEEP 1536:Exe5ceArKXVX7XDZjQi5IWXiYjQizUWXiO:E05i4XrDZxIg/bUgX
- TLSH T12333CFF56D786554DDA24E70D4D98A23FEB032914FA808EB2498C0571ECABE1BF2D11F
- MD5 SHA1 SHA512 SSDEEP TLSH
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1868 wrote to memory of 468 1868 rundll32.exe 86
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\bass_fx.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1868 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\bass_fx.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:468
-