Analysis
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max time kernel
133s -
max time network
142s -
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 23:31
Behavioral task
behavioral1
Sample
bdbe915e3b57f025f109f99463c4459773e2573a76e9a55e92142a930d6da99b.xlsm
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
bdbe915e3b57f025f109f99463c4459773e2573a76e9a55e92142a930d6da99b.xlsm
Resource
win10v2004-20241007-en
General
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Target
bdbe915e3b57f025f109f99463c4459773e2573a76e9a55e92142a930d6da99b.xlsm
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Size
20KB
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MD5
eb6e240307081ed655ac931e76510fd1
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SHA1
2855d8a522e16facdf958f3c89bec78e4c743ac7
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SHA256
bdbe915e3b57f025f109f99463c4459773e2573a76e9a55e92142a930d6da99b
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SHA512
72361d8bca6c3e60ad709eb69b921606f987441e951ad86d9c2009d861b0240aff2be86fae0d7903bd6b366efc6a0ef136a563f21e2347572a480dccbbcc35bb
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SSDEEP
384:2KAVb1GNjYTo4CGzPd6ZIwL0AOKb5CzgObff9kC+xbX7jvIv:2KYINmo4FLyCBn9kC+xbLA
Malware Config
Extracted
https://www.manchesterslt.co.uk/a-to-z-of-slt/9wq2ESVcG/
http://festival.artdialog.ch/contact/RGhcwH4DRBM/
http://bramynapilota.com.pl/wp-admin/NHk/
http://brwconsultoria.com.br/img/Vl0i9o/
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 3916 1828 regsvr32.exe 81 -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.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 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1828 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1828 EXCEL.EXE 1828 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1828 EXCEL.EXE 1828 EXCEL.EXE 1828 EXCEL.EXE 1828 EXCEL.EXE 1828 EXCEL.EXE 1828 EXCEL.EXE 1828 EXCEL.EXE 1828 EXCEL.EXE 1828 EXCEL.EXE 1828 EXCEL.EXE 1828 EXCEL.EXE 1828 EXCEL.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1828 wrote to memory of 3916 1828 EXCEL.EXE 90 PID 1828 wrote to memory of 3916 1828 EXCEL.EXE 90 PID 1828 wrote to memory of 3916 1828 EXCEL.EXE 90
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\bdbe915e3b57f025f109f99463c4459773e2573a76e9a55e92142a930d6da99b.xlsm"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:1828 -
C:\Windows\SysWow64\regsvr32.exeC:\Windows\SysWow64\regsvr32.exe -s ..\kytk.dll2⤵
- Process spawned unexpected child process
- System Location Discovery: System Language Discovery
PID:3916
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
Filesize1KB
MD51d6a4e97312fdf8ec2bd2751f4f3bb6b
SHA16edcf6915045068cd16c6ef89c3a072ae931ff5d
SHA2561dffdef853d25184b5c61f0fc129f543fdba0170bb202bc5670de9a45dce5e42
SHA5120a5e3588803099fc0797a7633d7f9ba964a75d945fdb4a549146303d18fb93568d70614e1d158b7a7aa001a9247841d940405f5c34f608c4f46c290aab5f6629
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Filesize
1KB
MD51326c16a18441423830933fbb3a6a290
SHA1d62b5f0ec9ae7a82209938c347311519b9fc1084
SHA2563bb40456027c77d05b991e4686f10e51739a6ebdca3e33ec5edcd1e2c28b34cf
SHA5122b9076d43ccc836c89bcd4cc1946008b1d0268edf432d37659960f4ffb9836ca65e638b61305f374ba71b2fa21ac3210482c0e6287288e75bcd44d4fbeb3e528