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Analysis
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max time kernel
158s -
max time network
174s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
28/12/2023, 09:56
Behavioral task
behavioral1
Sample
d75651ae3fbdbe217dfa2987fd54428a.xls
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
d75651ae3fbdbe217dfa2987fd54428a.xls
Resource
win10v2004-20231215-en
General
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Target
d75651ae3fbdbe217dfa2987fd54428a.xls
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Size
36KB
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MD5
d75651ae3fbdbe217dfa2987fd54428a
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SHA1
6c469a60c759854d2e67287c9dd4490a086e5982
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SHA256
dee859920efe084ddf9a27836d7deecbf31e8148bc439263da378e1a193e63a6
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SHA512
1a2a002b9207af58a45645e9a4fbb10a71ede6495e73688a2b670a48070c6867a1dc7fa092998496c6769518bef4e87a184c3cad66f63f365b616d79abc8ff40
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SSDEEP
768:0PqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJaJPq7t5ahuAieNJ:wok3hbdlylKsgqopeJBWhZFGkE+cL2Nh
Malware Config
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 1544 2372 explorer.exe 88 -
Blocklisted process makes network request 2 IoCs
flow pid Process 64 1788 WScript.exe 65 1788 WScript.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 -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2372 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2372 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE 2372 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2372 wrote to memory of 1544 2372 EXCEL.EXE 98 PID 2372 wrote to memory of 1544 2372 EXCEL.EXE 98 PID 1404 wrote to memory of 1788 1404 explorer.exe 100 PID 1404 wrote to memory of 1788 1404 explorer.exe 100
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\d75651ae3fbdbe217dfa2987fd54428a.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:2372 -
C:\Windows\explorer.exeexplorer.exe C:\Users\Public\Documents\wIM4E7R.vbs2⤵
- Process spawned unexpected child process
PID:1544
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1404 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\wIM4E7R.vbs"2⤵
- Blocklisted process makes network request
PID:1788
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
610B
MD57bd3b776cf1495d0aa9c0187fef24c9c
SHA1ecff7f65ad9c361def5a732f3995365cafe0c97e
SHA2566fa155791a870a7a74fac29f1798985e380f4f97e1fccd11d9e397a151217d13
SHA5121e7261c7bd4e4f0a81a3487d67ae793d4446c784703111c1810980090cc1869050e9323f33f2288f94fb52a409bf8b5a3957e4fea77e235339c483fe6903ef13