Analysis
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max time kernel
133s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21-11-2024 00:20
Behavioral task
behavioral1
Sample
bd5a9253a60ebad745aae1e8435f003fc257cb6e0b480fe58d3a29dfb3864731.xlsm
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
bd5a9253a60ebad745aae1e8435f003fc257cb6e0b480fe58d3a29dfb3864731.xlsm
Resource
win10v2004-20241007-en
General
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Target
bd5a9253a60ebad745aae1e8435f003fc257cb6e0b480fe58d3a29dfb3864731.xlsm
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Size
38KB
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MD5
6f2ecd6088024b3240b3d0e2635d7f7a
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SHA1
88025bb96e4a4120f06d6413b11473e566553dbd
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SHA256
bd5a9253a60ebad745aae1e8435f003fc257cb6e0b480fe58d3a29dfb3864731
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SHA512
833a953285fc287d2a3b224edbf33707866f3985f207f2436ecf6363076bfd6d6a11fe690f3f81b498def309820f0b836e383e331f8d3095a137c04cb886037f
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SSDEEP
768:mdUCR8xZ5jOZpqcVbZYpoRuBlIiOKMArOooooooooooooooooooooooooooFVIy5:u5wXOZZ1ZYpoQ/pMAeVIyMId
Malware Config
Extracted
https://ausnz.net/2010wc/RhAYVPNypjphNNk6J/
https://belisip.net/libs/Swift-5.1.0/F5XU7EuPePQ/
https://blog.centerking.top/wp-includes/WEIuPafz0bS/
https://edu-media.cn/wp-admin/TOu/
https://ppiabanyuwangi.or.id/lulu-1937/daURDNUyso/
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 4000 4524 regsvr32.exe 82 -
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 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 4524 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4524 EXCEL.EXE 4524 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4524 EXCEL.EXE 4524 EXCEL.EXE 4524 EXCEL.EXE 4524 EXCEL.EXE 4524 EXCEL.EXE 4524 EXCEL.EXE 4524 EXCEL.EXE 4524 EXCEL.EXE 4524 EXCEL.EXE 4524 EXCEL.EXE 4524 EXCEL.EXE 4524 EXCEL.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4524 wrote to memory of 4000 4524 EXCEL.EXE 99 PID 4524 wrote to memory of 4000 4524 EXCEL.EXE 99 PID 4524 wrote to memory of 4000 4524 EXCEL.EXE 99
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\bd5a9253a60ebad745aae1e8435f003fc257cb6e0b480fe58d3a29dfb3864731.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:4524 -
C:\Windows\SysWow64\regsvr32.exeC:\Windows\SysWow64\regsvr32.exe -s ..\wnru.ocx2⤵
- Process spawned unexpected child process
- System Location Discovery: System Language Discovery
PID:4000
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
5B
MD55bfa51f3a417b98e7443eca90fc94703
SHA18c015d80b8a23f780bdd215dc842b0f5551f63bd
SHA256bebe2853a3485d1c2e5c5be4249183e0ddaff9f87de71652371700a89d937128
SHA5124cd03686254bb28754cbaa635ae1264723e2be80ce1dd0f78d1ab7aee72232f5b285f79e488e9c5c49ff343015bd07bb8433d6cee08ae3cea8c317303e3ac399
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
Filesize2KB
MD5a6f65199e8747057d92f2fef8377a8d6
SHA14653aa7fcc9e1f0c7132f7b57b1a1d81cde1c487
SHA256f19de4bc146cc067e7327ab056856b40edb0912204721fdd6dfc7578edc8e4b6
SHA5123c55200c2b52c738b7703576c022b3c418652a8967f55389ae94edd65f2e4088fbfb3ba2254da0a465b9f5034699ec39dac901e228c677234ca0f3ea8e9cb199
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Filesize
1KB
MD51326c16a18441423830933fbb3a6a290
SHA1d62b5f0ec9ae7a82209938c347311519b9fc1084
SHA2563bb40456027c77d05b991e4686f10e51739a6ebdca3e33ec5edcd1e2c28b34cf
SHA5122b9076d43ccc836c89bcd4cc1946008b1d0268edf432d37659960f4ffb9836ca65e638b61305f374ba71b2fa21ac3210482c0e6287288e75bcd44d4fbeb3e528