Analysis
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max time kernel
125s -
max time network
149s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
10/11/2022, 10:48
Behavioral task
behavioral1
Sample
9124b898fa06f9508e130b1f1b61ae6a4cd513bdf100d79b54fdc722d3604b8d.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
9124b898fa06f9508e130b1f1b61ae6a4cd513bdf100d79b54fdc722d3604b8d.xls
Resource
win10-20220812-en
General
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Target
9124b898fa06f9508e130b1f1b61ae6a4cd513bdf100d79b54fdc722d3604b8d.xls
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Size
91KB
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MD5
324d88fa21627f1775fd7761303c0075
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SHA1
24537813ec765b84ef32d143eff38170177685c4
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SHA256
9124b898fa06f9508e130b1f1b61ae6a4cd513bdf100d79b54fdc722d3604b8d
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SHA512
923ccd7feecdacf63a870a63f43f1ca75d32331db24ab26a00721e3cd9053e1bff13ebcd4ec2d305a3e7fbdd9a56b52bd7d8e3ba4b5889c571e1e76ad5d2a48d
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SSDEEP
1536:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgGbCXuZH4gb4CEn9J4Z/Cs9o2:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgG
Malware Config
Extracted
https://bosny.com/aspnet_client/R50QIOGjmvVlr/
http://navylin.com/autopoisonous/4fZQW/
http://asrani.garudaputih.com/nutabalong/bJYqoUIr99qNfoPDx/
http://db.rikaz.tech/lCx76IlkrBtEsqNFA7/zPYJzpOnzstNOiRHob/
Signatures
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Process spawned unexpected child process 4 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4748 3804 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3204 3804 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4848 3804 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3228 3804 regsvr32.exe 65 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
description 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3804 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3804 EXCEL.EXE 3804 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3804 EXCEL.EXE 3804 EXCEL.EXE 3804 EXCEL.EXE 3804 EXCEL.EXE 3804 EXCEL.EXE 3804 EXCEL.EXE 3804 EXCEL.EXE 3804 EXCEL.EXE 3804 EXCEL.EXE 3804 EXCEL.EXE 3804 EXCEL.EXE 3804 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3804 wrote to memory of 4748 3804 EXCEL.EXE 68 PID 3804 wrote to memory of 4748 3804 EXCEL.EXE 68 PID 3804 wrote to memory of 3204 3804 EXCEL.EXE 69 PID 3804 wrote to memory of 3204 3804 EXCEL.EXE 69 PID 3804 wrote to memory of 4848 3804 EXCEL.EXE 70 PID 3804 wrote to memory of 4848 3804 EXCEL.EXE 70 PID 3804 wrote to memory of 3228 3804 EXCEL.EXE 71 PID 3804 wrote to memory of 3228 3804 EXCEL.EXE 71
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\9124b898fa06f9508e130b1f1b61ae6a4cd513bdf100d79b54fdc722d3604b8d.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:3804 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4748
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3204
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4848
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3228
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