Analysis
-
max time kernel
59s -
max time network
33s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
04-09-2024 22:15
Behavioral task
behavioral1
Sample
cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef.xls
Resource
win10v2004-20240802-en
General
-
Target
cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef.xls
-
Size
36KB
-
MD5
2b5149912c390e158c2223ad3bb99250
-
SHA1
c7624e874c7633f85595360952d41a4d034f1b21
-
SHA256
cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef
-
SHA512
18ef3b79ed2e2f54670e72b1989ec15bff4fe4f1b17f4a34cf4c62009fd0394b5bb77f89fbf19a952172c55a1ad44888a8243819f130b91a7b263fbaa675193d
-
SSDEEP
768:xPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJRkxGv1QEE68DC:5ok3hbdlylKsgqopeJBWhZFGkE+cL2Nw
Malware Config
Signatures
-
Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
explorer.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4544 2096 explorer.exe EXCEL.EXE -
Blocklisted process makes network request 2 IoCs
Processes:
WScript.exeflow pid process 24 1372 WScript.exe 27 1372 WScript.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Modifies registry class 1 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 2096 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
EXCEL.EXEpid process 2096 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
EXCEL.EXEpid process 2096 EXCEL.EXE 2096 EXCEL.EXE 2096 EXCEL.EXE 2096 EXCEL.EXE 2096 EXCEL.EXE 2096 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEexplorer.exedescription pid process target process PID 2096 wrote to memory of 4544 2096 EXCEL.EXE explorer.exe PID 2096 wrote to memory of 4544 2096 EXCEL.EXE explorer.exe PID 3064 wrote to memory of 1372 3064 explorer.exe WScript.exe PID 3064 wrote to memory of 1372 3064 explorer.exe WScript.exe
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2096 -
C:\Windows\explorer.exeexplorer.exe C:\Users\Public\Documents\aMv.vbs2⤵
- Process spawned unexpected child process
PID:4544
-
C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3064 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\aMv.vbs"2⤵
- Blocklisted process makes network request
PID:1372
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
609B
MD5e11baa18fd0e452d849b4018707feb84
SHA138c785ce317c8cd17adaf3d1a60cca5f59ffe596
SHA256adffabbc135bd0726a3e7865b3d2312d063086e70e02c041991722a842e13578
SHA512b1b0ba6a44c5d3eea035ece368d9fa612e35554b788381330302159d77d0b7da277b90d143445bfa7c115b7fa17e0b64942e1588a9665f4377e7be6bcdfaac2c