Analysis
- max time kernel
149s - max time network
111s - platform
windows11-21h2_x64 - resource
win11-20250619-en - resource tags
arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system - submitted
09/10/2025, 17:25
Static task
static1
Behavioral task
behavioral1
Sample
fbcbfa3bae2c721a8923ef296e7f7140d3035a2cf711ab3df4d948eba6226446.exe
Resource
win10v2004-20250619-en
Behavioral task
behavioral2
Sample
fbcbfa3bae2c721a8923ef296e7f7140d3035a2cf711ab3df4d948eba6226446.exe
Resource
win11-20250619-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20250610-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win11-20250619-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20250619-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20250619-en
General
- Target $PLUGINSDIR/nsDialogs.dll
- Size 9KB
- Sample251009-vzmbcsslw5
- SHA256 48c290cf400a8e3a5e6cded2f4817d344c4d20745c8659cccbc09edad5866dc0
- MD5 9cbefc918a4560f3e780bc927e0e4008
- SHA1 4c23e9947f5d2338b4cfeb870cc9f9dcb7ee37e3
- SHA512 7a11aeba9bfe309c9baaa9bd907218b238fd09a98c55c5d34949b8f5b4b6402e3efb7cb3279c211459cb6d27b689896c0a54ed92155d25f5828d18377a5b4bff
- SSDEEP 96:o1svUu3Uy+sytcS8176b+XR8pCHFcMcxSgB5PKtAtgt+Nt+rnt3DVEB3YrJNqkz6:o1svWyNO81b8pCHFcM0PuAgkOybIFc
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 5784 1088 WerFault.exe 78 - 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 5500 wrote to memory of 1088 5500 rundll32.exe 78 PID 5500 wrote to memory of 1088 5500 rundll32.exe 78 PID 5500 wrote to memory of 1088 5500 rundll32.exe 78
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsDialogs.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:5500 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsDialogs.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:1088 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 5443⤵
- Program crash
PID:5784
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 128 -p 1088 -ip 10881⤵PID:3212