Analysis
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max time kernel
184s -
max time network
191s -
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 07:47
Behavioral task
behavioral1
Sample
5d75be100260055c4ebc572168c23033.xls
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
5d75be100260055c4ebc572168c23033.xls
Resource
win10v2004-20231215-en
General
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Target
5d75be100260055c4ebc572168c23033.xls
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Size
35KB
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MD5
5d75be100260055c4ebc572168c23033
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SHA1
d8b07eff6861699f9a131d4be50bbff5ad6a8f4c
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SHA256
94c44883536d1e3cee76df9aa7505836833bbc9c0d0703afaed532ef4b7cc373
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SHA512
5453a8ce21b5349fdd00332460eee9a6b76fbdee38e817d33822f3a422f80d8880d75a1cbb3da1758e1d323ad76283aa27869c5fbce4ea1424ca67b543445f05
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SSDEEP
768:vPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJPlMaPjzciK2UKAScaBKpb:Hok3hbdlylKsgqopeJBWhZFGkE+cL2Nx
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 3060 3936 explorer.exe 86 -
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 -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3936 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3936 EXCEL.EXE 3936 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
pid Process 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE 3936 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3936 wrote to memory of 3060 3936 EXCEL.EXE 93 PID 3936 wrote to memory of 3060 3936 EXCEL.EXE 93 PID 3988 wrote to memory of 1640 3988 explorer.exe 95 PID 3988 wrote to memory of 1640 3988 explorer.exe 95
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\5d75be100260055c4ebc572168c23033.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:3936 -
C:\Windows\explorer.exeexplorer.exe C:\Users\Public\Documents\Aw9v1H.vbs2⤵
- Process spawned unexpected child process
PID:3060
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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:3988 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\Aw9v1H.vbs"2⤵PID:1640
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
542B
MD548f6780ed19cfbc0e7f66696accf64ee
SHA1fdfbcdd23409894d5156f95d688428cea8e1c3cb
SHA256e47dfbd60c55410574fb5c578be6c653798cdc3a0a123197b0021595ffdcfab3
SHA51255f2af8b127116256e21bd17178594edb33d0cd606c60ff03f07a885f9132c00c8b12d5ab920b1c2bfe1bd0d10b23c9ec4eb8393096075e5c8296c6def3c7fca