Overview
overview
7Static
static
3RTSSSetup736.exe
windows7-x64
7RTSSSetup736.exe
windows10-2004-x64
7$PLUGINSDI...LL.dll
windows7-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...st.dll
windows7-x64
3$PLUGINSDI...st.dll
windows10-2004-x64
3$PLUGINSDI...64.dll
windows7-x64
1$PLUGINSDI...64.dll
windows10-2004-x64
1$PLUGINSDI...nu.dll
windows7-x64
3$PLUGINSDI...nu.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...rd.bmp
windows7-x64
3$PLUGINSDI...rd.bmp
windows10-2004-x64
7$PLUGINSDI...gs.dll
windows7-x64
3$PLUGINSDI...gs.dll
windows10-2004-x64
3$R0.dll
windows7-x64
1$R0.dll
windows10-2004-x64
1Codec/rtvcvfw32.dll
windows7-x64
1Codec/rtvcvfw32.dll
windows10-2004-x64
1DesktopOve...st.exe
windows7-x64
1DesktopOve...st.exe
windows10-2004-x64
1DesktopOve...er.exe
windows7-x64
3DesktopOve...er.exe
windows10-2004-x64
7EncoderServer.cfg
windows7-x64
3EncoderServer.cfg
windows10-2004-x64
3EncoderServer.exe
windows7-x64
1EncoderServer.exe
windows10-2004-x64
1EncoderServer64.exe
windows7-x64
1EncoderServer64.exe
windows10-2004-x64
1RTFC.dll
windows7-x64
3RTFC.dll
windows10-2004-x64
3Analysis
-
max time kernel
135s -
max time network
132s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
24-06-2024 12:13
Static task
static1
Behavioral task
behavioral1
Sample
RTSSSetup736.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
RTSSSetup736.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win7-20240611-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win10v2004-20240611-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/LockedList.dll
Resource
win7-20240220-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/LockedList.dll
Resource
win10v2004-20240611-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/LockedList64.dll
Resource
win7-20231129-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/LockedList64.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/StartMenu.dll
Resource
win7-20240508-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/StartMenu.dll
Resource
win10v2004-20240611-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240220-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240611-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/modern-wizard.bmp
Resource
win7-20240611-en
Behavioral task
behavioral14
Sample
$PLUGINSDIR/modern-wizard.bmp
Resource
win10v2004-20240508-en
Behavioral task
behavioral15
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win7-20240419-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral17
Sample
$R0.dll
Resource
win7-20240611-en
Behavioral task
behavioral18
Sample
$R0.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral19
Sample
Codec/rtvcvfw32.dll
Resource
win7-20240221-en
Behavioral task
behavioral20
Sample
Codec/rtvcvfw32.dll
Resource
win10v2004-20240611-en
Behavioral task
behavioral21
Sample
DesktopOverlayHost.exe
Resource
win7-20240508-en
Behavioral task
behavioral22
Sample
DesktopOverlayHost.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral23
Sample
DesktopOverlayHostLoader.exe
Resource
win7-20240508-en
Behavioral task
behavioral24
Sample
DesktopOverlayHostLoader.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral25
Sample
EncoderServer.cfg
Resource
win7-20240419-en
Behavioral task
behavioral26
Sample
EncoderServer.cfg
Resource
win10v2004-20240508-en
Behavioral task
behavioral27
Sample
EncoderServer.exe
Resource
win7-20240611-en
Behavioral task
behavioral28
Sample
EncoderServer.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral29
Sample
EncoderServer64.exe
Resource
win7-20240611-en
Behavioral task
behavioral30
Sample
EncoderServer64.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral31
Sample
RTFC.dll
Resource
win7-20240611-en
Behavioral task
behavioral32
Sample
RTFC.dll
Resource
win10v2004-20240226-en
General
-
Target
DesktopOverlayHostLoader.exe
-
Size
25KB
-
MD5
d9ff9504da8b627b720fe8f62f3bd24d
-
SHA1
636b35abd84344b437b24efadd175f2c8bbcb18c
-
SHA256
57dfce7a5cfe97578a45b35731a327e88b22fee0dbc4ec0b4dc1e919cc94e12f
-
SHA512
9510198e016a52da3d231ce4b8a0a1d55987454196a99bdfa998d25d530d4c46646f141ab13ee38a260c2a069a5d07d7d3110e450356b5bfe2be72e44f77d672
-
SSDEEP
384:0UvYJrPjoYTYNJVGzaC/uVGBkNl6bCIN6ki2ApxiRggivcV7Mp:0UvYtcYTYXVFWkNlTD2ApZL07Mp
Malware Config
Signatures
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation DesktopOverlayHostLoader.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 5016 DesktopOverlayHost.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 5016 DesktopOverlayHost.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 5016 DesktopOverlayHost.exe 5016 DesktopOverlayHost.exe 5016 DesktopOverlayHost.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3788 wrote to memory of 5016 3788 DesktopOverlayHostLoader.exe 83 PID 3788 wrote to memory of 5016 3788 DesktopOverlayHostLoader.exe 83 PID 3788 wrote to memory of 5016 3788 DesktopOverlayHostLoader.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\DesktopOverlayHostLoader.exe"C:\Users\Admin\AppData\Local\Temp\DesktopOverlayHostLoader.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3788 -
C:\Users\Admin\AppData\Local\Temp\DesktopOverlayHost.exe"C:\Users\Admin\AppData\Local\Temp\DesktopOverlayHost.exe"2⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:5016
-