Analysis
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max time kernel
148s -
max time network
147s -
platform
windows10-1703_x64 -
resource
win10-20220901-en -
resource tags
arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system -
submitted
10/11/2022, 10:51
Behavioral task
behavioral1
Sample
36124b7e8b92ecf89c6741dd82350976bebd06c548c43f52040101659ff4adbd.xls
Resource
win10-20220901-en
Behavioral task
behavioral2
Sample
36124b7e8b92ecf89c6741dd82350976bebd06c548c43f52040101659ff4adbd.xls
Resource
win10-20220812-en
General
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Target
36124b7e8b92ecf89c6741dd82350976bebd06c548c43f52040101659ff4adbd.xls
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Size
91KB
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MD5
f17da7b9a3cf0973b160c7f545c26664
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SHA1
5c3f320c1dc8b09c16967a7a161744c9fb93de08
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SHA256
36124b7e8b92ecf89c6741dd82350976bebd06c548c43f52040101659ff4adbd
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SHA512
ec1ce187845ab293b4c2be13f1c7d21674c4461adf4243e5fae8e18f33a4e1780235dd99ec6848bc074c62676bc1380c86e01a6fe416bb23e896147b08f0ff20
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SSDEEP
1536:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgGbCXuZH4gb4CEn9J4Z/is9o2:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgm
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 4964 4828 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4692 4828 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4908 4828 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4464 4828 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 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 4828 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4828 EXCEL.EXE 4828 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4828 EXCEL.EXE 4828 EXCEL.EXE 4828 EXCEL.EXE 4828 EXCEL.EXE 4828 EXCEL.EXE 4828 EXCEL.EXE 4828 EXCEL.EXE 4828 EXCEL.EXE 4828 EXCEL.EXE 4828 EXCEL.EXE 4828 EXCEL.EXE 4828 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4828 wrote to memory of 4964 4828 EXCEL.EXE 68 PID 4828 wrote to memory of 4964 4828 EXCEL.EXE 68 PID 4828 wrote to memory of 4692 4828 EXCEL.EXE 69 PID 4828 wrote to memory of 4692 4828 EXCEL.EXE 69 PID 4828 wrote to memory of 4908 4828 EXCEL.EXE 70 PID 4828 wrote to memory of 4908 4828 EXCEL.EXE 70 PID 4828 wrote to memory of 4464 4828 EXCEL.EXE 71 PID 4828 wrote to memory of 4464 4828 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\36124b7e8b92ecf89c6741dd82350976bebd06c548c43f52040101659ff4adbd.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:4828 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4964
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4692
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4908
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4464
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