Analysis
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max time kernel
133s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20/11/2024, 13:44
Behavioral task
behavioral1
Sample
b4c944aae926eca8579970763d5ad5936634971f6609fbf544fde331687f0639.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
b4c944aae926eca8579970763d5ad5936634971f6609fbf544fde331687f0639.xls
Resource
win10v2004-20241007-en
General
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Target
b4c944aae926eca8579970763d5ad5936634971f6609fbf544fde331687f0639.xls
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Size
47KB
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MD5
bcfc1fad95adbf36fc4549fa72bebe8b
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SHA1
01e4bf2fa38064121bdca1ebb084a990e8905a9c
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SHA256
b4c944aae926eca8579970763d5ad5936634971f6609fbf544fde331687f0639
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SHA512
6ef8dfe1c7827bf00c7ba94e7225ec01cfafc34eb4db626a989f2bf85771cc052135af03484093b96f0fdb444e006a584577159e7acf5853d381717561d300a8
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SSDEEP
768:yDM52tfQXi8vgLZkTOHkQT51Vp6AwPdM8gQ6JOiX6DGwUk7qHDSEuRZjiBp5j:y62tfQXi8vgLZkTOHkQT51Vp6AwPe8gx
Malware Config
Extracted
https://eleselektromekanik.com/69Iq5Pwbd0/s/
https://demo.icn.com.np/stories/Qk/
http://demo34.ckg.hk/service/Atk7RQfUV673M/
https://bitmovil.mx/css/TrgyPiTXy3/
http://dupot.cz/tvhost/DUnMUvwZOhQs/
http://focanainternet.com.br/erros/DepAK3p1Y/
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 4016 1620 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 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1620 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1620 EXCEL.EXE 1620 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
pid Process 1620 EXCEL.EXE 1620 EXCEL.EXE 1620 EXCEL.EXE 1620 EXCEL.EXE 1620 EXCEL.EXE 1620 EXCEL.EXE 1620 EXCEL.EXE 1620 EXCEL.EXE 1620 EXCEL.EXE 1620 EXCEL.EXE 1620 EXCEL.EXE 1620 EXCEL.EXE 1620 EXCEL.EXE 1620 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1620 wrote to memory of 4016 1620 EXCEL.EXE 93 PID 1620 wrote to memory of 4016 1620 EXCEL.EXE 93
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\b4c944aae926eca8579970763d5ad5936634971f6609fbf544fde331687f0639.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:1620 -
C:\Windows\SYSTEM32\regsvr32.exeregsvr32.exe ..\wnrul.ocx2⤵
- Process spawned unexpected child process
PID:4016
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
Filesize3KB
MD50f3945f69c5de6e1354c4d28d8e6a74e
SHA1a9f3ba7d391fbdeac31fa69d5dedf85585384d77
SHA256af9eb532002fdb16280d0ebd0c44df5a71f121e65cae26303ff7cbee999727a4
SHA51286895f7af78407f84fd09cc3296aae49133f70c7a03e4002837a0e0ab059650fa8612b012f0edae711bec47b2e129920458ce18143274e394ad05ed8f7cd90ad
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Filesize
3KB
MD5cc666088a917dd7f5da8b6689069aec0
SHA1f688de634ccd20939a522391abb5049483e726bd
SHA256332d102987273318f13e7fc89a043613c6dd5dd7eb7d21033a2ab73dd438a405
SHA51277a15aebeb10d355e3723fdebd2ea59a09a60d54f09ab9a6f06c52dbfa3bea0965ff49b7a1c2e6f4ff94f3fe903e6301188de2f80801a8a978c8c09b3356c8dc