Overview
overview
9Static
static
3aca83fffa6...0c.exe
windows7-x64
9aca83fffa6...0c.exe
windows10-2004-x64
9$PLUGINSDI...sh.dll
windows7-x64
3$PLUGINSDI...sh.dll
windows10-2004-x64
3$PLUGINSDIR/Bass.dll
windows7-x64
1$PLUGINSDIR/Bass.dll
windows10-2004-x64
1$PLUGINSDI...on.dll
windows7-x64
3$PLUGINSDI...on.dll
windows10-2004-x64
3$PLUGINSDI...ns.dll
windows7-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...in.dll
windows7-x64
1$PLUGINSDI...in.dll
windows10-2004-x64
1$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDIR/bass.dll
windows7-x64
1$PLUGINSDIR/bass.dll
windows10-2004-x64
1$PROGRAMFI...ll.exe
windows7-x64
3$PROGRAMFI...ll.exe
windows10-2004-x64
3ExSCv3.chm
windows7-x64
1ExSCv3.chm
windows10-2004-x64
1Exsc.exe
windows7-x64
6Exsc.exe
windows10-2004-x64
6license.rtf
windows7-x64
4license.rtf
windows10-2004-x64
1umowa_licencyjna.rtf
windows7-x64
4umowa_licencyjna.rtf
windows10-2004-x64
6uninstall.exe
windows7-x64
3uninstall.exe
windows10-2004-x64
3Analysis
-
max time kernel
147s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
15-06-2024 00:47
Static task
static1
Behavioral task
behavioral1
Sample
aca83fffa69ba66a87440ce64302dda3bfdfebb1c33ba5c00e3b71eddb6f280c.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
aca83fffa69ba66a87440ce64302dda3bfdfebb1c33ba5c00e3b71eddb6f280c.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/AdvSplash.dll
Resource
win7-20240611-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/AdvSplash.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/Bass.dll
Resource
win7-20240611-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/Bass.dll
Resource
win10v2004-20240611-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/GetVersion.dll
Resource
win7-20240508-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/GetVersion.dll
Resource
win10v2004-20240611-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win7-20240611-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/NSIS_SkinCrafter_Plugin.dll
Resource
win7-20240221-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/NSIS_SkinCrafter_Plugin.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/System.dll
Resource
win7-20231129-en
Behavioral task
behavioral14
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240611-en
Behavioral task
behavioral15
Sample
$PLUGINSDIR/bass.dll
Resource
win7-20240220-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/bass.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral17
Sample
$PROGRAMFILES/Wlodzimierz Grabowski/Extreme Sample Converter/uninstall.exe
Resource
win7-20240508-en
Behavioral task
behavioral18
Sample
$PROGRAMFILES/Wlodzimierz Grabowski/Extreme Sample Converter/uninstall.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral19
Sample
ExSCv3.chm
Resource
win7-20240221-en
Behavioral task
behavioral20
Sample
ExSCv3.chm
Resource
win10v2004-20240508-en
Behavioral task
behavioral21
Sample
Exsc.exe
Resource
win7-20240611-en
Behavioral task
behavioral22
Sample
Exsc.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral23
Sample
license.rtf
Resource
win7-20240611-en
Behavioral task
behavioral24
Sample
license.rtf
Resource
win10v2004-20240611-en
Behavioral task
behavioral25
Sample
umowa_licencyjna.rtf
Resource
win7-20240221-en
Behavioral task
behavioral26
Sample
umowa_licencyjna.rtf
Resource
win10v2004-20240508-en
Behavioral task
behavioral27
Sample
uninstall.exe
Resource
win7-20240508-en
Behavioral task
behavioral28
Sample
uninstall.exe
Resource
win10v2004-20240611-en
General
-
Target
umowa_licencyjna.rtf
-
Size
4KB
-
MD5
0c5eca726976d665b26bcb3f7fe367fe
-
SHA1
b3fe77b8548e941eb1cbaab8ca35c7aef9c67228
-
SHA256
7c57ebddebc42482d136203a70fbffe1d6b65f1172cbc317f6912fa4169b4c61
-
SHA512
27f2dbe3988f4da65f131a9edf92d741401c4a0768f6cc6337723a9d2d9f567bedd29e453f155744ac84d8e428c4504e7de6eb069d1f165da9fb7c5bef41dda7
-
SSDEEP
96:e8dcKfqItSNU+c+qOjegy4Z0VHGnjvqoGhe6V8IXhRPxyJArMfnsY/wDFAJM2:eqlfPi584ZY6jyouV8IXhRZZIfn5/iAh
Malware Config
Signatures
-
Process spawned suspicious child process 1 IoCs
This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.
Processes:
DW20.EXEdescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 2748 1620 DW20.EXE WINWORD.EXE -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
dwwin.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString dwwin.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
dwwin.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU dwwin.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
WINWORD.EXEpid process 1620 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
WINWORD.EXEpid process 1620 WINWORD.EXE 1620 WINWORD.EXE 1620 WINWORD.EXE 1620 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
WINWORD.EXEpid process 1620 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEDW20.EXEdescription pid process target process PID 1620 wrote to memory of 2748 1620 WINWORD.EXE DW20.EXE PID 1620 wrote to memory of 2748 1620 WINWORD.EXE DW20.EXE PID 2748 wrote to memory of 740 2748 DW20.EXE dwwin.exe PID 2748 wrote to memory of 740 2748 DW20.EXE dwwin.exe
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\umowa_licencyjna.rtf" /o ""1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE"C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 24842⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 24843⤵
- Checks processor information in registry
- Enumerates system info in registry
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/1620-9-0x00007FFEB5430000-0x00007FFEB5625000-memory.dmpFilesize
2.0MB
-
memory/1620-3-0x00007FFEB54CD000-0x00007FFEB54CE000-memory.dmpFilesize
4KB
-
memory/1620-11-0x00007FFE733F0000-0x00007FFE73400000-memory.dmpFilesize
64KB
-
memory/1620-1-0x00007FFE754B0000-0x00007FFE754C0000-memory.dmpFilesize
64KB
-
memory/1620-5-0x00007FFEB5430000-0x00007FFEB5625000-memory.dmpFilesize
2.0MB
-
memory/1620-4-0x00007FFE754B0000-0x00007FFE754C0000-memory.dmpFilesize
64KB
-
memory/1620-6-0x00007FFEB5430000-0x00007FFEB5625000-memory.dmpFilesize
2.0MB
-
memory/1620-7-0x00007FFE754B0000-0x00007FFE754C0000-memory.dmpFilesize
64KB
-
memory/1620-12-0x00007FFEB5430000-0x00007FFEB5625000-memory.dmpFilesize
2.0MB
-
memory/1620-10-0x00007FFEB5430000-0x00007FFEB5625000-memory.dmpFilesize
2.0MB
-
memory/1620-32-0x00007FFEB5430000-0x00007FFEB5625000-memory.dmpFilesize
2.0MB
-
memory/1620-2-0x00007FFE754B0000-0x00007FFE754C0000-memory.dmpFilesize
64KB
-
memory/1620-8-0x00007FFEB5430000-0x00007FFEB5625000-memory.dmpFilesize
2.0MB
-
memory/1620-13-0x00007FFE733F0000-0x00007FFE73400000-memory.dmpFilesize
64KB
-
memory/1620-0-0x00007FFE754B0000-0x00007FFE754C0000-memory.dmpFilesize
64KB
-
memory/2748-20-0x00007FFEB5430000-0x00007FFEB5625000-memory.dmpFilesize
2.0MB
-
memory/2748-29-0x00007FFE754B0000-0x00007FFE754C0000-memory.dmpFilesize
64KB
-
memory/2748-30-0x00007FFE754B0000-0x00007FFE754C0000-memory.dmpFilesize
64KB
-
memory/2748-28-0x00007FFE754B0000-0x00007FFE754C0000-memory.dmpFilesize
64KB
-
memory/2748-27-0x00007FFE754B0000-0x00007FFE754C0000-memory.dmpFilesize
64KB
-
memory/2748-31-0x00007FFEB5430000-0x00007FFEB5625000-memory.dmpFilesize
2.0MB
-
memory/2748-19-0x00007FFEB5430000-0x00007FFEB5625000-memory.dmpFilesize
2.0MB