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Analysis
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max time kernel
129s -
max time network
132s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
03/11/2022, 18:23
Behavioral task
behavioral1
Sample
69975236b79852154af9416f060f269734831aa0c9e940e0553b9aa1d893fc94.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
69975236b79852154af9416f060f269734831aa0c9e940e0553b9aa1d893fc94.xls
Resource
win10-20220812-en
General
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Target
69975236b79852154af9416f060f269734831aa0c9e940e0553b9aa1d893fc94.xls
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Size
217KB
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MD5
236a4173ee8f57bd2d2df64e737c15d3
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SHA1
ef5f6ba0f3dd9bba04a224f98c8ac24d4a31b346
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SHA256
69975236b79852154af9416f060f269734831aa0c9e940e0553b9aa1d893fc94
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SHA512
f1635b044a996923a78a0032b45eff49064732ee2c6a481a3de5ed2420fc7f979806484e47858b13bb80c769210a33b1060bf83f176638fc90afe462a7e2f30d
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SSDEEP
6144:OKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgByY+TAQXTHGUMEyP5p6f5jQmo:wbGUMVWlbo
Malware Config
Extracted
http://ftp.agir-santeinternationale.com/doctors/KAacngW97n4ApzVBDdGy/
http://www.vinyz.com/admin3693/BDFFgAZ6zBRumcUSG/
http://ly.yjlianyi.top/wp-admin/NRAdJ/
http://www.muyehuayi.com/cmp/Vtm2m7z88g/
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 4808 3792 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3928 3792 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3964 3792 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3900 3792 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 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 3792 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3792 EXCEL.EXE 3792 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3792 EXCEL.EXE 3792 EXCEL.EXE 3792 EXCEL.EXE 3792 EXCEL.EXE 3792 EXCEL.EXE 3792 EXCEL.EXE 3792 EXCEL.EXE 3792 EXCEL.EXE 3792 EXCEL.EXE 3792 EXCEL.EXE 3792 EXCEL.EXE 3792 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3792 wrote to memory of 4808 3792 EXCEL.EXE 68 PID 3792 wrote to memory of 4808 3792 EXCEL.EXE 68 PID 3792 wrote to memory of 3928 3792 EXCEL.EXE 69 PID 3792 wrote to memory of 3928 3792 EXCEL.EXE 69 PID 3792 wrote to memory of 3964 3792 EXCEL.EXE 70 PID 3792 wrote to memory of 3964 3792 EXCEL.EXE 70 PID 3792 wrote to memory of 3900 3792 EXCEL.EXE 71 PID 3792 wrote to memory of 3900 3792 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\69975236b79852154af9416f060f269734831aa0c9e940e0553b9aa1d893fc94.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:3792 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx2⤵
- Process spawned unexpected child process
PID:4808
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx2⤵
- Process spawned unexpected child process
PID:3928
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx2⤵
- Process spawned unexpected child process
PID:3964
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx2⤵
- Process spawned unexpected child process
PID:3900
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