Overview
overview
10Static
static
5Endorphin.exe
windows10-2004-x64
10$PLUGINSDI...ec.dll
windows10-2004-x64
3$TEMP/Asin.jar
windows10-2004-x64
1$TEMP/Busty.jar
windows10-2004-x64
1$TEMP/Earning.jar
windows10-2004-x64
1$TEMP/Forms.jar
windows10-2004-x64
1$TEMP/Ink.jar
windows10-2004-x64
1$TEMP/Inst...on.jar
windows10-2004-x64
1$TEMP/Rachel.jar
windows10-2004-x64
1$TEMP/Resolve.jar
windows10-2004-x64
1Analysis
- max time kernel
105s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20250619-en - resource tags
arch:x64arch:x86image:win10v2004-20250619-enlocale:en-usos:windows10-2004-x64system - submitted
04/08/2025, 22:14
Static task
static1
Behavioral task
behavioral1
Sample
Endorphin.exe
Resource
win10v2004-20250619-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20250619-en
Behavioral task
behavioral3
Sample
$TEMP/Asin.jar
Resource
win10v2004-20250502-en
Behavioral task
behavioral4
Sample
$TEMP/Busty.jar
Resource
win10v2004-20250502-en
Behavioral task
behavioral5
Sample
$TEMP/Earning.jar
Resource
win10v2004-20250619-en
Behavioral task
behavioral6
Sample
$TEMP/Forms.jar
Resource
win10v2004-20250610-en
Behavioral task
behavioral7
Sample
$TEMP/Ink.jar
Resource
win10v2004-20250619-en
Behavioral task
behavioral8
Sample
$TEMP/Instrumentation.jar
Resource
win10v2004-20250610-en
Behavioral task
behavioral9
Sample
$TEMP/Rachel.jar
Resource
win10v2004-20250619-en
Behavioral task
behavioral10
Sample
$TEMP/Resolve.jar
Resource
win10v2004-20250619-en
General
- Target $PLUGINSDIR/nsExec.dll
- Size 6KB
- Sample250804-15twaabl9x
- SHA256 8165c7aef7de3d3e0549776535bedc380ad9be7bb85e60ad6436f71528d092af
- MD5 08e9796ca20c5fc5076e3ac05fb5709a
- SHA1 07971d52dcbaa1054060073571ced046347177f7
- SHA512 02618317d6ab0302324aae4d3c5fca56b21e68c899e211cfa9412cf73820a1f931e56753c904fd7e510c638b4463aedbfe9536790279e096ea0387b67013e0c4
- SSDEEP 96:/Uspq2y5jOEEQrhySvUgfj74/vvrTBzfYZA4YF3Telac1nIq/2:/erjOELhySv5f2vvBjiAflaB1nIq
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 3556 5300 WerFault.exe 84 - 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 3 IoCs
description pid Process procid_target PID 620 wrote to memory of 5300 620 rundll32.exe 84 PID 620 wrote to memory of 5300 620 rundll32.exe 84 PID 620 wrote to memory of 5300 620 rundll32.exe 84
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:620 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:5300 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5300 -s 6123⤵
- Program crash
PID:3556
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5300 -ip 53001⤵PID:4352