Analysis
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max time kernel
148s -
max time network
151s -
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, 10:50
Behavioral task
behavioral1
Sample
271d33b512c4ee37e4838eb1d7393de085e387b20d493304eb356bfa60b24e63.xls
Resource
win10-20220901-en
Behavioral task
behavioral2
Sample
271d33b512c4ee37e4838eb1d7393de085e387b20d493304eb356bfa60b24e63.xls
Resource
win10-20220901-en
General
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Target
271d33b512c4ee37e4838eb1d7393de085e387b20d493304eb356bfa60b24e63.xls
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Size
91KB
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MD5
1c0c9828138572c16ac97ad41780ecc0
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SHA1
eaa0ec1617d83d5afcd3a2ebe689472949906457
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SHA256
271d33b512c4ee37e4838eb1d7393de085e387b20d493304eb356bfa60b24e63
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SHA512
0b24cf4df9130dbe11b7e121e674108749c6605e6fc7ec67d07a660c1c08b8a50077a7ed5fa60a8df9a032ecefc2c3c5d49cfda04011428f27c1e3333e42ff76
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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 4272 2820 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3992 2820 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4928 2820 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 5024 2820 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 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 2820 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2820 EXCEL.EXE 2820 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE 2820 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2820 wrote to memory of 4272 2820 EXCEL.EXE 68 PID 2820 wrote to memory of 4272 2820 EXCEL.EXE 68 PID 2820 wrote to memory of 3992 2820 EXCEL.EXE 69 PID 2820 wrote to memory of 3992 2820 EXCEL.EXE 69 PID 2820 wrote to memory of 4928 2820 EXCEL.EXE 70 PID 2820 wrote to memory of 4928 2820 EXCEL.EXE 70 PID 2820 wrote to memory of 5024 2820 EXCEL.EXE 71 PID 2820 wrote to memory of 5024 2820 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\271d33b512c4ee37e4838eb1d7393de085e387b20d493304eb356bfa60b24e63.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:2820 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4272
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3992
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4928
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:5024
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