Analysis
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max time kernel
129s -
max time network
147s -
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, 10:21
Behavioral task
behavioral1
Sample
3bbc1d4f80cb62fe5c33fe71f323d8cc50920ae75cbc05e18c3ce4d210c28f12.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
3bbc1d4f80cb62fe5c33fe71f323d8cc50920ae75cbc05e18c3ce4d210c28f12.xls
Resource
win10-20220812-en
General
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Target
3bbc1d4f80cb62fe5c33fe71f323d8cc50920ae75cbc05e18c3ce4d210c28f12.xls
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Size
91KB
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MD5
d7dc46b49b17c4e85bc566020abb8eb1
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SHA1
e9b98670ac9869042464227d08bc0226c521a5b2
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SHA256
3bbc1d4f80cb62fe5c33fe71f323d8cc50920ae75cbc05e18c3ce4d210c28f12
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SHA512
6041dda6302160f98651cbaecdcdaa665c1008098491a8c7108913faafc7757f9d46828933389e23507ef9d11d40876884f33abb51b303afbcb07bc6f9c9dd73
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SSDEEP
1536:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgGbCXuZH4gb4CEn9J4Z/Cs9o2:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgO
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 4636 3964 regsvr32.exe 66 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4480 3964 regsvr32.exe 66 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3796 3964 regsvr32.exe 66 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3380 3964 regsvr32.exe 66 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
description 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3964 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3964 EXCEL.EXE 3964 EXCEL.EXE 3964 EXCEL.EXE 3964 EXCEL.EXE 3964 EXCEL.EXE 3964 EXCEL.EXE 3964 EXCEL.EXE 3964 EXCEL.EXE 3964 EXCEL.EXE 3964 EXCEL.EXE 3964 EXCEL.EXE 3964 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3964 wrote to memory of 4636 3964 EXCEL.EXE 69 PID 3964 wrote to memory of 4636 3964 EXCEL.EXE 69 PID 3964 wrote to memory of 4480 3964 EXCEL.EXE 70 PID 3964 wrote to memory of 4480 3964 EXCEL.EXE 70 PID 3964 wrote to memory of 3796 3964 EXCEL.EXE 71 PID 3964 wrote to memory of 3796 3964 EXCEL.EXE 71 PID 3964 wrote to memory of 3380 3964 EXCEL.EXE 72 PID 3964 wrote to memory of 3380 3964 EXCEL.EXE 72
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\3bbc1d4f80cb62fe5c33fe71f323d8cc50920ae75cbc05e18c3ce4d210c28f12.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3964 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4636
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4480
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3796
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3380
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