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Analysis
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max time kernel
201s -
max time network
206s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
26/12/2023, 04:34
Behavioral task
behavioral1
Sample
54870881afd3c6637871675748ff5097.xls
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
54870881afd3c6637871675748ff5097.xls
Resource
win10v2004-20231215-en
General
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Target
54870881afd3c6637871675748ff5097.xls
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Size
36KB
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MD5
54870881afd3c6637871675748ff5097
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SHA1
066dfe14a8250f5bb81f265eae805b6fedd164c3
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SHA256
34d7c28d654c98560dda7d8c7ff7e271464c70f1ae8f80e1434cdf5f45f5fe8c
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SHA512
f1034d2d77731405ecededacb388a046ceec6a4dcabbaef8dfe3d8ab9402d96d6989b876cd26fce888c991117046db1c3011a814f3a457d91f04785e3cfae4d9
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SSDEEP
768:BPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJxQJiey1ZLT1mViqsvqNwPryV:pok3hbdlylKsgqopeJBWhZFGkE+cL2NT
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 4080 2092 explorer.exe 85 -
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-1-5-21-635608581-3370340891-292606865-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2092 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2092 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 2092 EXCEL.EXE 2092 EXCEL.EXE 2092 EXCEL.EXE 2092 EXCEL.EXE 2092 EXCEL.EXE 2092 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2092 wrote to memory of 4080 2092 EXCEL.EXE 94 PID 2092 wrote to memory of 4080 2092 EXCEL.EXE 94 PID 4036 wrote to memory of 1540 4036 explorer.exe 96 PID 4036 wrote to memory of 1540 4036 explorer.exe 96
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\54870881afd3c6637871675748ff5097.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:2092 -
C:\Windows\explorer.exeexplorer.exe C:\Users\Public\Documents\w02qKn.vbs2⤵
- Process spawned unexpected child process
PID:4080
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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:4036 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\w02qKn.vbs"2⤵PID:1540
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
577B
MD53932ac592a245105e8590bf2d9b1bcce
SHA1e991ae33d3fa2a0e9974f834b4703a9c102fdfc3
SHA256e4eaa9af8c323b66cca7604e622363ac630809eda6a44eaa9470ecd798270772
SHA5124e81b2a6ba3ee9ded6f1264109c7415b1ea62a490d5cc9d1bdd2082687c116ee6d5e3c75ef91bbf2d0286aa6ceaaad1632ac72f86e6bd05585b8c6bf720bc8eb