Analysis
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max time kernel
127s -
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, 11:01
Behavioral task
behavioral1
Sample
95c3502c3b37dc3be12a6924a793df983b5cd64a72bdba0e196074e91d178071.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
95c3502c3b37dc3be12a6924a793df983b5cd64a72bdba0e196074e91d178071.xls
Resource
win10-20220901-en
General
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Target
95c3502c3b37dc3be12a6924a793df983b5cd64a72bdba0e196074e91d178071.xls
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Size
91KB
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MD5
78aeecff17bc9c09021c8e48f7895a49
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SHA1
6e3968edff2f814d7d00deea5c42c44d922ddb7c
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SHA256
95c3502c3b37dc3be12a6924a793df983b5cd64a72bdba0e196074e91d178071
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SHA512
aef41267df2b8e680f125728f65d87a3624fddb71a7d14118b1164498bd516b177e895d81a7ccb1c9b412af3202a4f737d94dcd7e62ada63c2712f6dc7a80d10
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SSDEEP
1536:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgGbCXuZH4gb4CEn9J4Z/Cs9o2:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgu
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 4508 4916 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 588 4916 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 5112 4916 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 916 4916 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\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 4916 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4916 EXCEL.EXE 4916 EXCEL.EXE 4916 EXCEL.EXE 4916 EXCEL.EXE 4916 EXCEL.EXE 4916 EXCEL.EXE 4916 EXCEL.EXE 4916 EXCEL.EXE 4916 EXCEL.EXE 4916 EXCEL.EXE 4916 EXCEL.EXE 4916 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4916 wrote to memory of 4508 4916 EXCEL.EXE 68 PID 4916 wrote to memory of 4508 4916 EXCEL.EXE 68 PID 4916 wrote to memory of 588 4916 EXCEL.EXE 70 PID 4916 wrote to memory of 588 4916 EXCEL.EXE 70 PID 4916 wrote to memory of 5112 4916 EXCEL.EXE 71 PID 4916 wrote to memory of 5112 4916 EXCEL.EXE 71 PID 4916 wrote to memory of 916 4916 EXCEL.EXE 73 PID 4916 wrote to memory of 916 4916 EXCEL.EXE 73
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\95c3502c3b37dc3be12a6924a793df983b5cd64a72bdba0e196074e91d178071.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4916 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4508
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:588
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:5112
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:916
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