Analysis
- max time kernel
100s - max time network
103s - platform
windows11-21h2_x64 - resource
win11-20250610-en - resource tags
arch:x64arch:x86image:win11-20250610-enlocale:en-usos:windows11-21h2-x64system - submitted
02/07/2025, 04:24
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
Factura.pdf.exe
Resource
win10v2004-20250610-en
22 signatures
150 seconds
Behavioral task
behavioral2
Sample
Factura.pdf.exe
Resource
win11-20250502-en
10 signatures
150 seconds
Behavioral task
behavioral3
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win10v2004-20250610-en
3 signatures
150 seconds
Behavioral task
behavioral4
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win11-20250610-en
3 signatures
150 seconds
Behavioral task
behavioral5
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20250502-en
3 signatures
150 seconds
Behavioral task
behavioral6
Sample
$PLUGINSDIR/System.dll
Resource
win11-20250619-en
3 signatures
150 seconds
General
- Target $PLUGINSDIR/LangDLL.dll
- Size 5KB
- Sample250702-e1rdpssnz7
- SHA256 32230128c18574c1e860dfe4b17fe0334f685740e27bc182e0d525a8948c9c2e
- MD5 50016010fb0d8db2bc4cd258ceb43be5
- SHA1 44ba95ee12e69da72478cf358c93533a9c7a01dc
- SHA512 ed4cf49f756fbf673449dca20e63dce6d3a612b61f294efc9c3ccebeffa6a1372667932468816d3a7afdb7e5a652760689d8c6d3f331cedee7247404c879a233
- SSDEEP 48:S46+/pTKYKxbWsptIp5tCZ0iVEAWyMEv9v/ft2O2B8m/ofjLl:zbuPbO5tCZBVEAWyMEFv2CmCL
- MD5 SHA1 SHA512 SSDEEP
Score
3/10
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 3756 332 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 3880 wrote to memory of 332 3880 rundll32.exe 78 PID 3880 wrote to memory of 332 3880 rundll32.exe 78 PID 3880 wrote to memory of 332 3880 rundll32.exe 78
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\LangDLL.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3880 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\LangDLL.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:332 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 332 -s 4483⤵
- Program crash
PID:3756
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 332 -ip 3321⤵PID:3552