Analysis
-
max time kernel
100s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
27-11-2022 02:56
Behavioral task
behavioral1
Sample
73c59fd6f013ff27bc8d917a611a3418c9391dc50d6f518f25b864dc66e0cea5.xls
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
73c59fd6f013ff27bc8d917a611a3418c9391dc50d6f518f25b864dc66e0cea5.xls
Resource
win10v2004-20220901-en
General
-
Target
73c59fd6f013ff27bc8d917a611a3418c9391dc50d6f518f25b864dc66e0cea5.xls
-
Size
142KB
-
MD5
3bd7af11411bdc3117cdb2830b6b976a
-
SHA1
f9095bb6b822827808e6a5a26124b9b1494eec3d
-
SHA256
73c59fd6f013ff27bc8d917a611a3418c9391dc50d6f518f25b864dc66e0cea5
-
SHA512
dabfb8ddd185a075b0c536b1918bdabfd69d228eaaa57e4246bb19d94912e1c1e01ae1cda49abcabcee8052b57c72f19e572e2adcb2044c8ad265faf10a1cdaf
-
SSDEEP
3072:OTj03qHDdcmjcc0lbxOsv90w33XjUJtXwWKs:Ld33XuEs
Malware Config
Signatures
-
Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
cmd.execmd.execmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1848 3464 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4112 3464 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4232 3464 cmd.exe EXCEL.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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
NTFS ADS 1 IoCs
Processes:
EXCEL.EXEdescription ioc process File created C:\Users\Admin\AppData\Local\Temp\8BD65E00\:Zone.Identifier:$DATA EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 3464 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 3464 EXCEL.EXE 3464 EXCEL.EXE 3464 EXCEL.EXE 3464 EXCEL.EXE 3464 EXCEL.EXE 3464 EXCEL.EXE 3464 EXCEL.EXE 3464 EXCEL.EXE 3464 EXCEL.EXE 3464 EXCEL.EXE 3464 EXCEL.EXE 3464 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 3464 wrote to memory of 1848 3464 EXCEL.EXE cmd.exe PID 3464 wrote to memory of 1848 3464 EXCEL.EXE cmd.exe PID 3464 wrote to memory of 4112 3464 EXCEL.EXE cmd.exe PID 3464 wrote to memory of 4112 3464 EXCEL.EXE cmd.exe PID 3464 wrote to memory of 4232 3464 EXCEL.EXE cmd.exe PID 3464 wrote to memory of 4232 3464 EXCEL.EXE cmd.exe PID 1848 wrote to memory of 2904 1848 cmd.exe attrib.exe PID 1848 wrote to memory of 2904 1848 cmd.exe attrib.exe -
Views/modifies file attributes 1 TTPs 1 IoCs
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\73c59fd6f013ff27bc8d917a611a3418c9391dc50d6f518f25b864dc66e0cea5.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3464 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1848 -
C:\Windows\system32\attrib.exeattrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"3⤵
- Views/modifies file attributes
PID:2904 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
PID:4112 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
PID:4232
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/1848-139-0x0000000000000000-mapping.dmp
-
memory/2904-142-0x0000000000000000-mapping.dmp
-
memory/3464-144-0x0000022581789000-0x000002258178B000-memory.dmpFilesize
8KB
-
memory/3464-132-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmpFilesize
64KB
-
memory/3464-136-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmpFilesize
64KB
-
memory/3464-137-0x00007FF83D570000-0x00007FF83D580000-memory.dmpFilesize
64KB
-
memory/3464-138-0x00007FF83D570000-0x00007FF83D580000-memory.dmpFilesize
64KB
-
memory/3464-134-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmpFilesize
64KB
-
memory/3464-149-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmpFilesize
64KB
-
memory/3464-148-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmpFilesize
64KB
-
memory/3464-133-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmpFilesize
64KB
-
memory/3464-143-0x0000022581789000-0x000002258178B000-memory.dmpFilesize
8KB
-
memory/3464-135-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmpFilesize
64KB
-
memory/3464-146-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmpFilesize
64KB
-
memory/3464-147-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmpFilesize
64KB
-
memory/4112-140-0x0000000000000000-mapping.dmp
-
memory/4232-141-0x0000000000000000-mapping.dmp