Analysis
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max time kernel
148s -
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, 10:55
Behavioral task
behavioral1
Sample
f9aebb47cd76923fcb9a655ce504e8765593acbdbb5ba9ab85258db896c053fa.xls
Resource
win10-20220901-en
Behavioral task
behavioral2
Sample
f9aebb47cd76923fcb9a655ce504e8765593acbdbb5ba9ab85258db896c053fa.xls
Resource
win10-20220812-en
General
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Target
f9aebb47cd76923fcb9a655ce504e8765593acbdbb5ba9ab85258db896c053fa.xls
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Size
91KB
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MD5
f3c762b18399efd122ed38a31db5c5a6
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SHA1
9e97cc9307b72e55c155a3de77ec99e7222e4def
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SHA256
f9aebb47cd76923fcb9a655ce504e8765593acbdbb5ba9ab85258db896c053fa
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SHA512
e6ab4d798e73d0c75d073acdc5bd2b0ef10521798040e6d44d8eff04a68757c0b647b7dcd1a17550f6cce2570093966190b73680165e6cbaed44966275c98f4b
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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 4992 4824 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 5108 4824 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4348 4824 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4652 4824 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 4824 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4824 EXCEL.EXE 4824 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4824 EXCEL.EXE 4824 EXCEL.EXE 4824 EXCEL.EXE 4824 EXCEL.EXE 4824 EXCEL.EXE 4824 EXCEL.EXE 4824 EXCEL.EXE 4824 EXCEL.EXE 4824 EXCEL.EXE 4824 EXCEL.EXE 4824 EXCEL.EXE 4824 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4824 wrote to memory of 4992 4824 EXCEL.EXE 68 PID 4824 wrote to memory of 4992 4824 EXCEL.EXE 68 PID 4824 wrote to memory of 5108 4824 EXCEL.EXE 69 PID 4824 wrote to memory of 5108 4824 EXCEL.EXE 69 PID 4824 wrote to memory of 4348 4824 EXCEL.EXE 70 PID 4824 wrote to memory of 4348 4824 EXCEL.EXE 70 PID 4824 wrote to memory of 4652 4824 EXCEL.EXE 71 PID 4824 wrote to memory of 4652 4824 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\f9aebb47cd76923fcb9a655ce504e8765593acbdbb5ba9ab85258db896c053fa.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:4824 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4992
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:5108
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4348
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4652
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