Analysis
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max time kernel
149s -
max time network
148s -
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, 10:27
Behavioral task
behavioral1
Sample
90ad0d3775eeeaa81b6a26513c7845bbcdd3cae22784e8f8c9e1207ac5015319.xls
Resource
win10-20220901-en
Behavioral task
behavioral2
Sample
90ad0d3775eeeaa81b6a26513c7845bbcdd3cae22784e8f8c9e1207ac5015319.xls
Resource
win10-20220812-en
General
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Target
90ad0d3775eeeaa81b6a26513c7845bbcdd3cae22784e8f8c9e1207ac5015319.xls
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Size
91KB
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MD5
5996c065453499f70368d1cc992bf51a
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SHA1
00b5ad1c2d1bd3426ae3a128310936d4b11e0b00
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SHA256
90ad0d3775eeeaa81b6a26513c7845bbcdd3cae22784e8f8c9e1207ac5015319
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SHA512
2f3bcbc341cec7a690698309728a3744e9585aad9d8e4e8fbd0088365d98db65ab43426bc110b13aa0e47e7a9fd7da2aa302f467653b3007047d836bbb7ac2f2
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SSDEEP
1536:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgqbCXuZH4gb4CEn9J4ZXz3:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgO
Malware Config
Extracted
https://www.conceptagency.net/css/b8eaKN/
https://bencevendeghaz.hu/2zjoi/cwfKJOzA/
http://45.32.114.141/xilte/Uqm6Eysf3Hkjwh/
http://ruitaiwz.com/wp-admin/MXlp5IsUKwT1k0DtzT/
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 5100 4832 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4436 4832 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4200 4832 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4492 4832 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4832 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4832 EXCEL.EXE 4832 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE 4832 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4832 wrote to memory of 5100 4832 EXCEL.EXE 68 PID 4832 wrote to memory of 5100 4832 EXCEL.EXE 68 PID 4832 wrote to memory of 4436 4832 EXCEL.EXE 69 PID 4832 wrote to memory of 4436 4832 EXCEL.EXE 69 PID 4832 wrote to memory of 4200 4832 EXCEL.EXE 70 PID 4832 wrote to memory of 4200 4832 EXCEL.EXE 70 PID 4832 wrote to memory of 4492 4832 EXCEL.EXE 71 PID 4832 wrote to memory of 4492 4832 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\90ad0d3775eeeaa81b6a26513c7845bbcdd3cae22784e8f8c9e1207ac5015319.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:4832 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:5100
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4436
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4200
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4492
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