Analysis
- user interaction
yes - max time kernel
119s - max time network
121s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
02/06/2026, 05:58
Behavioral task
behavioral1
Sample
setup.exe
Resource
win10v2004-20260513-en
6 signatures
300 seconds
Behavioral task
behavioral2
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20260513-en
3 signatures
300 seconds
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260513-en
3 signatures
300 seconds
Behavioral task
behavioral4
Sample
$PLUGINSDIR/bass.dll
Resource
win10v2004-20260513-en
2 signatures
300 seconds
General
- Target $PLUGINSDIR/bass.dll
- Size 101KB
- Sample260602-gn5fxaev81
- SHA256 14a38f56be50a3829eb1eda2a908da2de5913f81d5cb01d8b668593d0fc36594
- MD5 a8af308ff01b4477657955fbf0cc8408
- SHA1 0794c059f0326e4a71be8a3ee4ac17a657d90d88
- SHA512 9e221967db95d4b86bf311891193dfd1515806aa0d43198d3bc26a17d77f06f212ab9dba1ca8575f50d224380e8b109529faccf2f56daac834da83a83677a0fd
- SSDEEP 3072:kR+vccy3LIweO1vFCLPkG9dfSD0BXZXmpw69Qe:S+vccy3hF1vFCT99dTBX5mupe
- TLSH T16DA30299DA7441C3E4EBF839646E036042CA6B0F421DEFF85ED8D2E022D45D522A5FCE
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
3/10
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 2512 wrote to memory of 4400 2512 rundll32.exe 86
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\bass.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2512 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\bass.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:4400
-