Overview
overview
10Static
static
3QuarkPC.exe
windows11-21h2-x64
10$APPDATA/P...gs.vbs
windows11-21h2-x64
3$APPDATA/P...ns.ps1
windows11-21h2-x64
3$APPDATA/P...te.dll
windows11-21h2-x64
3$LOCALAPPD..._R.exe
windows11-21h2-x64
5$LOCALAPPD...32.exe
windows11-21h2-x64
3$PLUGINSDI...ns.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3$WINDIR/Text.ps1
windows11-21h2-x64
3QuarkPC.exe
windows11-21h2-x64
4Resubmissions
31/03/2025, 15:25
250331-st3p2svps7 10Analysis
-
max time kernel
1s -
platform
windows11-21h2_x64 -
resource
win11-20250313-en -
resource tags
arch:x64arch:x86image:win11-20250313-enlocale:en-usos:windows11-21h2-x64system -
submitted
31/03/2025, 15:25
Static task
static1
Behavioral task
behavioral1
Sample
QuarkPC.exe
Resource
win11-20250314-en
Behavioral task
behavioral2
Sample
$APPDATA/Promotions/Logs.vbs
Resource
win11-20250313-en
Behavioral task
behavioral3
Sample
$APPDATA/Promotions/Promotions.ps1
Resource
win11-20250313-en
Behavioral task
behavioral4
Sample
$APPDATA/Promotions/Update.dll
Resource
win11-20250313-en
Behavioral task
behavioral5
Sample
$LOCALAPPDATA/Protected_R.exe
Resource
win11-20250313-en
Behavioral task
behavioral6
Sample
$LOCALAPPDATA/SGuardSvc32.exe
Resource
win11-20250313-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win11-20250313-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/System.dll
Resource
win11-20250313-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20250314-en
Behavioral task
behavioral10
Sample
$WINDIR/Text.ps1
Resource
win11-20250313-en
Behavioral task
behavioral11
Sample
QuarkPC.exe
Resource
win11-20250313-en
General
-
Target
$PLUGINSDIR/System.dll
-
Size
12KB
-
MD5
4add245d4ba34b04f213409bfe504c07
-
SHA1
ef756d6581d70e87d58cc4982e3f4d18e0ea5b09
-
SHA256
9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706
-
SHA512
1bd260cabe5ea3cefbbc675162f30092ab157893510f45a1b571489e03ebb2903c55f64f89812754d3fe03c8f10012b8078d1261a7e73ac1f87c82f714bce03d
-
SSDEEP
192:VjHcQ0qWTlt7wi5Aj/lM0sEWD/wtYbBjpNQybC7y+XZv0QPi:B/Qlt7wiij/lMRv/9V4bvr
Malware Config
Signatures
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Program crash 1 IoCs
pid pid_target Process procid_target 4840 3484 WerFault.exe 80 -
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 4924 wrote to memory of 3484 4924 rundll32.exe 80 PID 4924 wrote to memory of 3484 4924 rundll32.exe 80 PID 4924 wrote to memory of 3484 4924 rundll32.exe 80
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:4924 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:3484 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3484 -s 4603⤵
- Program crash
PID:4840
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-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3484 -ip 34841⤵PID:2808