Analysis
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max time kernel
128s -
max time network
152s -
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, 10:57
Behavioral task
behavioral1
Sample
805fd6b7e2544d28b74c00d4233cd26d9b6938f48362e370543579a3786f71ac.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
805fd6b7e2544d28b74c00d4233cd26d9b6938f48362e370543579a3786f71ac.xls
Resource
win10-20220812-en
General
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Target
805fd6b7e2544d28b74c00d4233cd26d9b6938f48362e370543579a3786f71ac.xls
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Size
91KB
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MD5
00da7d03581277562c90db9d67f6972c
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SHA1
de5a619b808afd2aa1f5a89403c9830d70f9da25
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SHA256
805fd6b7e2544d28b74c00d4233cd26d9b6938f48362e370543579a3786f71ac
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SHA512
7a8039007f465ba9b6f83168e88130f9b75f39645f18468a6bca3d834732bca84a439fdd51dc3e8eecdf7f3c313e4e04b1c39691a73ed25dfc902aae7510d607
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SSDEEP
1536:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgqbCXuZH4gb4CEn9J4ZXz3:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgO
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 5004 4420 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3388 4420 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 5028 4420 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3572 4420 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 4420 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4420 EXCEL.EXE 4420 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4420 EXCEL.EXE 4420 EXCEL.EXE 4420 EXCEL.EXE 4420 EXCEL.EXE 4420 EXCEL.EXE 4420 EXCEL.EXE 4420 EXCEL.EXE 4420 EXCEL.EXE 4420 EXCEL.EXE 4420 EXCEL.EXE 4420 EXCEL.EXE 4420 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4420 wrote to memory of 5004 4420 EXCEL.EXE 68 PID 4420 wrote to memory of 5004 4420 EXCEL.EXE 68 PID 4420 wrote to memory of 3388 4420 EXCEL.EXE 69 PID 4420 wrote to memory of 3388 4420 EXCEL.EXE 69 PID 4420 wrote to memory of 5028 4420 EXCEL.EXE 70 PID 4420 wrote to memory of 5028 4420 EXCEL.EXE 70 PID 4420 wrote to memory of 3572 4420 EXCEL.EXE 71 PID 4420 wrote to memory of 3572 4420 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\805fd6b7e2544d28b74c00d4233cd26d9b6938f48362e370543579a3786f71ac.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:4420 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:5004
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3388
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:5028
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3572
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