Analysis
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max time kernel
133s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
19/11/2024, 19:08
Behavioral task
behavioral1
Sample
e8acd27775be36af0b822c4d151afd1fe699530807744be4b6c0356a7f221602.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
e8acd27775be36af0b822c4d151afd1fe699530807744be4b6c0356a7f221602.xls
Resource
win10v2004-20241007-en
General
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Target
e8acd27775be36af0b822c4d151afd1fe699530807744be4b6c0356a7f221602.xls
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Size
47KB
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MD5
6b9445e8cb9b46e27b9d06714e3f8d75
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SHA1
8f602e6fc2e12d67273b7fb8a2bca07835a75554
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SHA256
e8acd27775be36af0b822c4d151afd1fe699530807744be4b6c0356a7f221602
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SHA512
3baf1778aecff4935af04c2198bff97e9e557595f5de093b605161b68655c1029dce8e2cbc08d88b2e56face6b81367487424cbb31c297fa072f1ba45389a444
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SSDEEP
768:4DM52tfQXi8vgLZkTOHkQT51Vp6AwPdM8gQ6JT5X6DGwUdh+pqjeSLjcvLtzrxF6:462tfQXi8vgLZkTOHkQT51Vp6AwPe8go
Malware Config
Extracted
https://www.escueladecinemza.com.ar/_installation/IBlj/
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 1244 3540 regsvr32.exe 82 -
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 3540 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3540 EXCEL.EXE 3540 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
pid Process 3540 EXCEL.EXE 3540 EXCEL.EXE 3540 EXCEL.EXE 3540 EXCEL.EXE 3540 EXCEL.EXE 3540 EXCEL.EXE 3540 EXCEL.EXE 3540 EXCEL.EXE 3540 EXCEL.EXE 3540 EXCEL.EXE 3540 EXCEL.EXE 3540 EXCEL.EXE 3540 EXCEL.EXE 3540 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3540 wrote to memory of 1244 3540 EXCEL.EXE 92 PID 3540 wrote to memory of 1244 3540 EXCEL.EXE 92
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\e8acd27775be36af0b822c4d151afd1fe699530807744be4b6c0356a7f221602.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:3540 -
C:\Windows\SYSTEM32\regsvr32.exeregsvr32.exe ..\wnrul.ocx2⤵
- Process spawned unexpected child process
PID:1244
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
86KB
MD5dfdb83bd3445e3f2ea46b104976c8d43
SHA178e1237f69e9ba18a68a2c72b6a78179fc01c29b
SHA25676e4a6a2d7ade92678bdc5dd447199ce8f16496d32b36b000726053a89e89443
SHA5126950cad2b1e7f9a20015ee358a44a7def9db96cb395c21a21fece6348e24cf4d307e10091b5f84edeb84368d9f435a82366ed992bcb372e078571a7b97cc328a