Analysis
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max time kernel
128s -
max time network
146s -
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, 10:47
Behavioral task
behavioral1
Sample
aa9aa73e198c2f810177889edc8a0527882f2ffeead30db11658886da511c5ad.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
aa9aa73e198c2f810177889edc8a0527882f2ffeead30db11658886da511c5ad.xls
Resource
win10-20220812-en
General
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Target
aa9aa73e198c2f810177889edc8a0527882f2ffeead30db11658886da511c5ad.xls
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Size
91KB
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MD5
38fc75ad76fc7ebacc28051dc777c5b4
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SHA1
31636625861429a7b519a0eaa33f0889fb6ce4d0
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SHA256
aa9aa73e198c2f810177889edc8a0527882f2ffeead30db11658886da511c5ad
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SHA512
324b2f7e0ccbb82f8840df2e772834570c41b85c26f7a30207b9af6be0867bd325c39d4c9ab6fde5a90812db2ca105b9f2a161f59515a085a15d006d10e755e7
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SSDEEP
1536:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgqbCXuZH4gb4CEn9J4Z3z3:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgG
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 4600 4716 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2164 4716 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 5008 4716 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 5036 4716 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 4716 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4716 EXCEL.EXE 4716 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4716 EXCEL.EXE 4716 EXCEL.EXE 4716 EXCEL.EXE 4716 EXCEL.EXE 4716 EXCEL.EXE 4716 EXCEL.EXE 4716 EXCEL.EXE 4716 EXCEL.EXE 4716 EXCEL.EXE 4716 EXCEL.EXE 4716 EXCEL.EXE 4716 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4716 wrote to memory of 4600 4716 EXCEL.EXE 68 PID 4716 wrote to memory of 4600 4716 EXCEL.EXE 68 PID 4716 wrote to memory of 2164 4716 EXCEL.EXE 69 PID 4716 wrote to memory of 2164 4716 EXCEL.EXE 69 PID 4716 wrote to memory of 5008 4716 EXCEL.EXE 70 PID 4716 wrote to memory of 5008 4716 EXCEL.EXE 70 PID 4716 wrote to memory of 5036 4716 EXCEL.EXE 71 PID 4716 wrote to memory of 5036 4716 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\aa9aa73e198c2f810177889edc8a0527882f2ffeead30db11658886da511c5ad.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:4716 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4600
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:2164
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:5008
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:5036
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