Analysis
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max time kernel
128s -
max time network
130s -
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, 10:49
Behavioral task
behavioral1
Sample
4dd025eac490dea6ca27aeae8d65af1fdef2cb63b097be0cc05d822fe0a1b0d1.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
4dd025eac490dea6ca27aeae8d65af1fdef2cb63b097be0cc05d822fe0a1b0d1.xls
Resource
win10-20220812-en
General
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Target
4dd025eac490dea6ca27aeae8d65af1fdef2cb63b097be0cc05d822fe0a1b0d1.xls
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Size
91KB
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MD5
dd1beea0d7823a74e2b48fc87bebbd3c
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SHA1
5a35e1827ac3d56fa55bb4c1e55920c77f87686b
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SHA256
4dd025eac490dea6ca27aeae8d65af1fdef2cb63b097be0cc05d822fe0a1b0d1
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SHA512
276f49b6df88f274fbc8690826151b0f288d034bc1bda8a963cd69b063136c11a76db9cdd8bb95c850b450a3e2faec39c7efcac93172041bcbc2dc682abeecef
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SSDEEP
1536:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgqbCXuZH4gb4CEn9J4ZXz3:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgm
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 3904 4668 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3888 4668 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2080 4668 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3016 4668 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 4668 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4668 EXCEL.EXE 4668 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4668 EXCEL.EXE 4668 EXCEL.EXE 4668 EXCEL.EXE 4668 EXCEL.EXE 4668 EXCEL.EXE 4668 EXCEL.EXE 4668 EXCEL.EXE 4668 EXCEL.EXE 4668 EXCEL.EXE 4668 EXCEL.EXE 4668 EXCEL.EXE 4668 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4668 wrote to memory of 3904 4668 EXCEL.EXE 68 PID 4668 wrote to memory of 3904 4668 EXCEL.EXE 68 PID 4668 wrote to memory of 3888 4668 EXCEL.EXE 69 PID 4668 wrote to memory of 3888 4668 EXCEL.EXE 69 PID 4668 wrote to memory of 2080 4668 EXCEL.EXE 70 PID 4668 wrote to memory of 2080 4668 EXCEL.EXE 70 PID 4668 wrote to memory of 3016 4668 EXCEL.EXE 71 PID 4668 wrote to memory of 3016 4668 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\4dd025eac490dea6ca27aeae8d65af1fdef2cb63b097be0cc05d822fe0a1b0d1.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:4668 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3904
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3888
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:2080
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3016
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