Analysis
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max time kernel
128s -
max time network
131s -
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, 10:18
Behavioral task
behavioral1
Sample
13f68c4c239feea0c573576927896f3d7dc0372b39155681f47bd9a688c21be0.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
13f68c4c239feea0c573576927896f3d7dc0372b39155681f47bd9a688c21be0.xls
Resource
win10-20220901-en
General
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Target
13f68c4c239feea0c573576927896f3d7dc0372b39155681f47bd9a688c21be0.xls
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Size
91KB
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MD5
fd9c165965099830709c44922e353b59
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SHA1
f5020a7afdbaf029d86b34202065de47c802407a
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SHA256
13f68c4c239feea0c573576927896f3d7dc0372b39155681f47bd9a688c21be0
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SHA512
b130435c8f4e54c83e34a159d0927f533381b228f61bc1aa0332cea70a29c930ae3b5d250534db19115d89e20c4d38ca65918722ba3d2b49b1b98ebbbcc3d57a
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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 4592 3084 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4916 3084 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3204 3084 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2924 3084 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\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3084 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3084 EXCEL.EXE 3084 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3084 EXCEL.EXE 3084 EXCEL.EXE 3084 EXCEL.EXE 3084 EXCEL.EXE 3084 EXCEL.EXE 3084 EXCEL.EXE 3084 EXCEL.EXE 3084 EXCEL.EXE 3084 EXCEL.EXE 3084 EXCEL.EXE 3084 EXCEL.EXE 3084 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3084 wrote to memory of 4592 3084 EXCEL.EXE 68 PID 3084 wrote to memory of 4592 3084 EXCEL.EXE 68 PID 3084 wrote to memory of 4916 3084 EXCEL.EXE 69 PID 3084 wrote to memory of 4916 3084 EXCEL.EXE 69 PID 3084 wrote to memory of 3204 3084 EXCEL.EXE 70 PID 3084 wrote to memory of 3204 3084 EXCEL.EXE 70 PID 3084 wrote to memory of 2924 3084 EXCEL.EXE 72 PID 3084 wrote to memory of 2924 3084 EXCEL.EXE 72
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\13f68c4c239feea0c573576927896f3d7dc0372b39155681f47bd9a688c21be0.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:3084 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4592
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4916
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3204
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:2924
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