Analysis
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max time kernel
127s -
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, 10:28
Behavioral task
behavioral1
Sample
cc78c46b81437376f3e14dba3992aebdf5c58d389a65b4a0749fdce3f4226369.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
cc78c46b81437376f3e14dba3992aebdf5c58d389a65b4a0749fdce3f4226369.xls
Resource
win10-20220812-en
General
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Target
cc78c46b81437376f3e14dba3992aebdf5c58d389a65b4a0749fdce3f4226369.xls
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Size
91KB
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MD5
2338eb170be0818bbf66b9e15ebb2890
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SHA1
8192c4167fc421300310d19a670c47ad0fa10097
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SHA256
cc78c46b81437376f3e14dba3992aebdf5c58d389a65b4a0749fdce3f4226369
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SHA512
352a6ae972667919cc46e3ef759076e56b2038bfa9a374cbdc95c0e87dd6cb02c31a96a374dc7e4812b31246b4fb2786d38669c90872fcfde97ada8d400dde56
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SSDEEP
1536:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgGbCXuZH4gb4CEn9J4Z/is9o2:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgm
Malware Config
Extracted
https://bosny.com/aspnet_client/R50QIOGjmvVlr/
http://navylin.com/autopoisonous/4fZQW/
http://asrani.garudaputih.com/nutabalong/bJYqoUIr99qNfoPDx/
http://db.rikaz.tech/lCx76IlkrBtEsqNFA7/zPYJzpOnzstNOiRHob/
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 3464 4912 regsvr32.exe 66 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 5028 4912 regsvr32.exe 66 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4292 4912 regsvr32.exe 66 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3144 4912 regsvr32.exe 66 -
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 4912 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4912 EXCEL.EXE 4912 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4912 EXCEL.EXE 4912 EXCEL.EXE 4912 EXCEL.EXE 4912 EXCEL.EXE 4912 EXCEL.EXE 4912 EXCEL.EXE 4912 EXCEL.EXE 4912 EXCEL.EXE 4912 EXCEL.EXE 4912 EXCEL.EXE 4912 EXCEL.EXE 4912 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4912 wrote to memory of 3464 4912 EXCEL.EXE 69 PID 4912 wrote to memory of 3464 4912 EXCEL.EXE 69 PID 4912 wrote to memory of 5028 4912 EXCEL.EXE 70 PID 4912 wrote to memory of 5028 4912 EXCEL.EXE 70 PID 4912 wrote to memory of 4292 4912 EXCEL.EXE 71 PID 4912 wrote to memory of 4292 4912 EXCEL.EXE 71 PID 4912 wrote to memory of 3144 4912 EXCEL.EXE 72 PID 4912 wrote to memory of 3144 4912 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\cc78c46b81437376f3e14dba3992aebdf5c58d389a65b4a0749fdce3f4226369.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:4912 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3464
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:5028
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4292
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3144
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