Analysis
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max time kernel
185s -
max time network
201s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 19:26
Behavioral task
behavioral1
Sample
b7bcd8b1615a74d01081f68a3ce030e71515f741fd824bbe579e822bde146c6e.xls
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
b7bcd8b1615a74d01081f68a3ce030e71515f741fd824bbe579e822bde146c6e.xls
Resource
win10v2004-20221111-en
General
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Target
b7bcd8b1615a74d01081f68a3ce030e71515f741fd824bbe579e822bde146c6e.xls
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Size
89KB
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MD5
e04396a6847dec1feed61fe3f75236d2
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SHA1
ce29f6f112a69cf833af95d9ad5bb2828a073a8e
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SHA256
b7bcd8b1615a74d01081f68a3ce030e71515f741fd824bbe579e822bde146c6e
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SHA512
73a2a31b7dd80353d2606998ec4071a65ae3a149f22a7e0f313580526846abfd004795742817d09c2772a4a4b48e0753f54ce43f08d2873c53c21f159538851e
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SSDEEP
1536:nzzzXhxslLTWVbrzQ7ISBnkR62lGM88ScJiXwc/dF:iWVbrzQ7I0k9tjhJiXwGdF
Malware Config
Signatures
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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 1800 1260 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 912 1260 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 208 1260 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 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1260 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 9 IoCs
Processes:
EXCEL.EXEpid process 1260 EXCEL.EXE 1260 EXCEL.EXE 1260 EXCEL.EXE 1260 EXCEL.EXE 1260 EXCEL.EXE 1260 EXCEL.EXE 1260 EXCEL.EXE 1260 EXCEL.EXE 1260 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 1260 wrote to memory of 1800 1260 EXCEL.EXE cmd.exe PID 1260 wrote to memory of 1800 1260 EXCEL.EXE cmd.exe PID 1260 wrote to memory of 208 1260 EXCEL.EXE cmd.exe PID 1260 wrote to memory of 208 1260 EXCEL.EXE cmd.exe PID 1260 wrote to memory of 912 1260 EXCEL.EXE cmd.exe PID 1260 wrote to memory of 912 1260 EXCEL.EXE cmd.exe PID 1800 wrote to memory of 1764 1800 cmd.exe attrib.exe PID 1800 wrote to memory of 1764 1800 cmd.exe attrib.exe -
Views/modifies file attributes 1 TTPs 1 IoCs
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\b7bcd8b1615a74d01081f68a3ce030e71515f741fd824bbe579e822bde146c6e.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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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
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C:\Windows\system32\attrib.exeattrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"3⤵
- Views/modifies file attributes
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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
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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
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/208-140-0x0000000000000000-mapping.dmp
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memory/912-141-0x0000000000000000-mapping.dmp
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memory/1260-132-0x00007FFB3C790000-0x00007FFB3C7A0000-memory.dmpFilesize
64KB
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memory/1260-133-0x00007FFB3C790000-0x00007FFB3C7A0000-memory.dmpFilesize
64KB
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memory/1260-134-0x00007FFB3C790000-0x00007FFB3C7A0000-memory.dmpFilesize
64KB
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memory/1260-135-0x00007FFB3C790000-0x00007FFB3C7A0000-memory.dmpFilesize
64KB
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memory/1260-136-0x00007FFB3C790000-0x00007FFB3C7A0000-memory.dmpFilesize
64KB
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memory/1260-137-0x00007FFB3A6D0000-0x00007FFB3A6E0000-memory.dmpFilesize
64KB
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memory/1260-138-0x00007FFB3A6D0000-0x00007FFB3A6E0000-memory.dmpFilesize
64KB
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memory/1764-142-0x0000000000000000-mapping.dmp
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memory/1800-139-0x0000000000000000-mapping.dmp