Analysis
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max time kernel
0s -
platform
windows11-21h2_x64 -
resource
win11-20240802-en -
resource tags
arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system -
submitted
02-10-2024 05:17
Static task
static1
Behavioral task
behavioral1
Sample
UltraUXThemePatcher_4.4.2.exe
Resource
win11-20240802-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/SysRestore.dll
Resource
win11-20240802-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win11-20240802-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20240802-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsisFile.dll
Resource
win11-20240802-en
General
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Target
$PLUGINSDIR/System.dll
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Size
12KB
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MD5
192639861e3dc2dc5c08bb8f8c7260d5
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SHA1
58d30e460609e22fa0098bc27d928b689ef9af78
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SHA256
23d618a0293c78ce00f7c6e6dd8b8923621da7dd1f63a070163ef4c0ec3033d6
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SHA512
6e573d8b2ef6ed719e271fd0b2fd9cd451f61fc9a9459330108d6d7a65a0f64016303318cad787aa1d5334ba670d8f1c7c13074e1be550b4a316963ecc465cdc
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SSDEEP
192:ljHcQ0qWTlt7wi5Aj/lM0sEWD/wtYbBjpNQybC7y+XZqE0QPi:R/Qlt7wiij/lMRv/9V4bfr
Malware Config
Signatures
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target Process procid_target 2876 2180 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.
Processes:
rundll32.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid Process procid_target PID 468 wrote to memory of 2180 468 rundll32.exe 78 PID 468 wrote to memory of 2180 468 rundll32.exe 78 PID 468 wrote to memory of 2180 468 rundll32.exe 78
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:468 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:2180 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2180 -s 4603⤵
- Program crash
PID:2876
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2180 -ip 21801⤵PID:404