Analysis
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max time kernel
149s -
max time network
147s -
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, 10:24
Behavioral task
behavioral1
Sample
eb528449a2251cc848ff621d6763e342c5a74a96ad170ae7d4aa542975c6e4c1.xls
Resource
win10-20220901-en
Behavioral task
behavioral2
Sample
eb528449a2251cc848ff621d6763e342c5a74a96ad170ae7d4aa542975c6e4c1.xls
Resource
win10-20220901-en
General
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Target
eb528449a2251cc848ff621d6763e342c5a74a96ad170ae7d4aa542975c6e4c1.xls
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Size
91KB
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MD5
7e8c62797d23dc4758eec46220d2d046
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SHA1
66dc6635f68a4e69a45490c86e0a7bcd50b5478e
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SHA256
eb528449a2251cc848ff621d6763e342c5a74a96ad170ae7d4aa542975c6e4c1
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SHA512
2650c72876e71dfa9fd711bba3a83c2606f42cde295c779063143f9c98a3b38e0612cf3d56234af0a00801da41f42c5beca6b9ccb6360eda9e17e142f88af3e6
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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 4268 5088 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4072 5088 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4000 5088 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3184 5088 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 5088 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 5088 EXCEL.EXE 5088 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 5088 EXCEL.EXE 5088 EXCEL.EXE 5088 EXCEL.EXE 5088 EXCEL.EXE 5088 EXCEL.EXE 5088 EXCEL.EXE 5088 EXCEL.EXE 5088 EXCEL.EXE 5088 EXCEL.EXE 5088 EXCEL.EXE 5088 EXCEL.EXE 5088 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 5088 wrote to memory of 4268 5088 EXCEL.EXE 68 PID 5088 wrote to memory of 4268 5088 EXCEL.EXE 68 PID 5088 wrote to memory of 4072 5088 EXCEL.EXE 69 PID 5088 wrote to memory of 4072 5088 EXCEL.EXE 69 PID 5088 wrote to memory of 4000 5088 EXCEL.EXE 70 PID 5088 wrote to memory of 4000 5088 EXCEL.EXE 70 PID 5088 wrote to memory of 3184 5088 EXCEL.EXE 71 PID 5088 wrote to memory of 3184 5088 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\eb528449a2251cc848ff621d6763e342c5a74a96ad170ae7d4aa542975c6e4c1.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:5088 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4268
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4072
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4000
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3184
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