Overview
overview
10Static
static
1020a6c6e35c...d2.exe
windows7-x64
920a6c6e35c...d2.exe
windows10-2004-x64
9$PLUGINSDI...ns.dll
windows7-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDIR/Midex.dll
windows7-x64
6$PLUGINSDIR/Midex.dll
windows10-2004-x64
6$PLUGINSDIR/jsis.dll
windows7-x64
3$PLUGINSDIR/jsis.dll
windows10-2004-x64
3$PLUGINSDI...ON.dll
windows7-x64
3$PLUGINSDI...ON.dll
windows10-2004-x64
3$_106_.dll
windows7-x64
1$_106_.dll
windows10-2004-x64
1Analysis
-
max time kernel
121s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
04-06-2024 01:06
Static task
static1
Behavioral task
behavioral1
Sample
20a6c6e35c32583f23b8701d14233fccec6fc68d6fc78dcffbb4da1c53b6b9d2.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
20a6c6e35c32583f23b8701d14233fccec6fc68d6fc78dcffbb4da1c53b6b9d2.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/JsisPlugins.dll
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/JsisPlugins.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/Midex.dll
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/Midex.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/jsis.dll
Resource
win7-20231129-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/jsis.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/nsJSON.dll
Resource
win7-20240508-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/nsJSON.dll
Resource
win10v2004-20240426-en
Behavioral task
behavioral11
Sample
$_106_.dll
Resource
win7-20240220-en
Behavioral task
behavioral12
Sample
$_106_.dll
Resource
win10v2004-20240508-en
General
-
Target
$PLUGINSDIR/Midex.dll
-
Size
126KB
-
MD5
581c4a0b8de60868b89074fe94eb27b9
-
SHA1
70b8bdfddb08164f9d52033305d535b7db2599f6
-
SHA256
b13c23af49da0a21959e564cbca8e6b94c181c5eeb95150b29c94ff6afb8f9dd
-
SHA512
94290e72871c622fc32e9661719066bafb9b393e10ed397cae8a6f0c8be6ed0df88e5414f39bc528bf9a81980bdcb621745b6c712f4878f0447595cec59ee33d
-
SSDEEP
3072:WACUTz1JlJmpGB6yK4H9l4o8rr4YlixbSrZKbazGd:WACUTz1JlopG5K4OZgeC
Malware Config
Signatures
-
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
Processes:
rundll32.exedescription ioc process File opened for modification \??\PhysicalDrive0 rundll32.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1932 1804 WerFault.exe rundll32.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 2796 wrote to memory of 1804 2796 rundll32.exe rundll32.exe PID 2796 wrote to memory of 1804 2796 rundll32.exe rundll32.exe PID 2796 wrote to memory of 1804 2796 rundll32.exe rundll32.exe PID 2796 wrote to memory of 1804 2796 rundll32.exe rundll32.exe PID 2796 wrote to memory of 1804 2796 rundll32.exe rundll32.exe PID 2796 wrote to memory of 1804 2796 rundll32.exe rundll32.exe PID 2796 wrote to memory of 1804 2796 rundll32.exe rundll32.exe PID 1804 wrote to memory of 1932 1804 rundll32.exe WerFault.exe PID 1804 wrote to memory of 1932 1804 rundll32.exe WerFault.exe PID 1804 wrote to memory of 1932 1804 rundll32.exe WerFault.exe PID 1804 wrote to memory of 1932 1804 rundll32.exe WerFault.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Midex.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2796 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Midex.dll,#12⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:1804 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1804 -s 2203⤵
- Program crash
PID:1932