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, 10:31
Behavioral task
behavioral1
Sample
4b216f5401ecf30dc9d6b928465eaeb0c5e40f0d5f9c8e4469c97259cdefb1d5.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
4b216f5401ecf30dc9d6b928465eaeb0c5e40f0d5f9c8e4469c97259cdefb1d5.xls
Resource
win10-20220812-en
General
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Target
4b216f5401ecf30dc9d6b928465eaeb0c5e40f0d5f9c8e4469c97259cdefb1d5.xls
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Size
91KB
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MD5
0555c190cfca3661d2e2c3e7555f5dfa
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SHA1
d9b8cff0a62b18f07074e8a3bd42e15dc525457b
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SHA256
4b216f5401ecf30dc9d6b928465eaeb0c5e40f0d5f9c8e4469c97259cdefb1d5
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SHA512
a13b949d719efb1be041075b5b26da3bab703232f6dc9483bcb68940f9d4bf8db65788d5f9c74b3035b3d4552124ce7153bee0522d2067483ccb0b65e414536f
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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 4348 3764 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4416 3764 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3608 3764 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3016 3764 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 3764 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3764 EXCEL.EXE 3764 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3764 EXCEL.EXE 3764 EXCEL.EXE 3764 EXCEL.EXE 3764 EXCEL.EXE 3764 EXCEL.EXE 3764 EXCEL.EXE 3764 EXCEL.EXE 3764 EXCEL.EXE 3764 EXCEL.EXE 3764 EXCEL.EXE 3764 EXCEL.EXE 3764 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3764 wrote to memory of 4348 3764 EXCEL.EXE 68 PID 3764 wrote to memory of 4348 3764 EXCEL.EXE 68 PID 3764 wrote to memory of 4416 3764 EXCEL.EXE 69 PID 3764 wrote to memory of 4416 3764 EXCEL.EXE 69 PID 3764 wrote to memory of 3608 3764 EXCEL.EXE 70 PID 3764 wrote to memory of 3608 3764 EXCEL.EXE 70 PID 3764 wrote to memory of 3016 3764 EXCEL.EXE 71 PID 3764 wrote to memory of 3016 3764 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\4b216f5401ecf30dc9d6b928465eaeb0c5e40f0d5f9c8e4469c97259cdefb1d5.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:3764 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4348
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4416
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3608
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3016
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