Analysis
- max time kernel
149s - max time network
122s - platform
windows10-2004_x64 - resource
win10v2004-20251231-en - resource tags
arch:x64arch:x86image:win10v2004-20251231-enlocale:en-usos:windows10-2004-x64system - submitted
09/01/2026, 15:25
Static task
static1
Behavioral task
behavioral1
Sample
59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe
Resource
win10v2004-20251231-en
Behavioral task
behavioral2
Sample
59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe
Resource
win11-20251229-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20251231-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win11-20251231-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20251231-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20251231-en
General
- Target $PLUGINSDIR/System.dll
- Size 12KB
- Sample260109-st4mcagv4e
- SHA256 7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5
- MD5 564bb0373067e1785cba7e4c24aab4bf
- SHA1 7c9416a01d821b10b2eef97b80899d24014d6fc1
- SHA512 22c61a323cb9293d7ec5c7e7e60674d0e2f7b29d55be25eb3c128ea2cd7440a1400cee17c43896b996278007c0d247f331a9b8964e3a40a0eb1404a9596c4472
- SSDEEP 192:nenY0qWTlt70IAj/lQ0sEWc/wtYbBH2aDybC7y+XBDIwL:n8+Qlt70Fj/lQRY/9VjjfL
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 4316 1088 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 1 IoCs
description pid Process procid_target PID 4384 wrote to memory of 1088 4384 rundll32.exe 84
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4384 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:1088 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 6123⤵
- Program crash
PID:4316
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1088 -ip 10881⤵PID:1920