Analysis
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max time kernel
145s -
max time network
139s -
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, 15:27
Behavioral task
behavioral1
Sample
cae176e88f2d6f60a2a2b0c09d8793e95cb6da51f08cd914e7de900b1ca554e4.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
cae176e88f2d6f60a2a2b0c09d8793e95cb6da51f08cd914e7de900b1ca554e4.xls
Resource
win10v2004-20241007-en
General
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Target
cae176e88f2d6f60a2a2b0c09d8793e95cb6da51f08cd914e7de900b1ca554e4.xls
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Size
56KB
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MD5
9f51a6bba49344b0516d50ca3c57da11
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SHA1
4f92141835a36d94a9f3aa4e0d28b1376e008f5e
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SHA256
cae176e88f2d6f60a2a2b0c09d8793e95cb6da51f08cd914e7de900b1ca554e4
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SHA512
a37412e0e1ba5d3a3af9f01664b28e1e5216ae11ba76b94784fa4f7dbc67f4ccc3b9b6aaafc2daf1942e23fa1f9656ca7a1ab456bf7fac1b374ce3521824f259
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SSDEEP
1536:VsKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg/5G9XSZ4umv/:aKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgs
Malware Config
Extracted
http://church.ktc-center.net/PbSkdCOW/
https://chobemaster.com/components/gus/
https://christianchapman.com/cgi-bin/gADHL9UXSFUTN/
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 4556 4260 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4260 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4260 EXCEL.EXE 4260 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4260 EXCEL.EXE 4260 EXCEL.EXE 4260 EXCEL.EXE 4260 EXCEL.EXE 4260 EXCEL.EXE 4260 EXCEL.EXE 4260 EXCEL.EXE 4260 EXCEL.EXE 4260 EXCEL.EXE 4260 EXCEL.EXE 4260 EXCEL.EXE 4260 EXCEL.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4260 wrote to memory of 4556 4260 EXCEL.EXE 94 PID 4260 wrote to memory of 4556 4260 EXCEL.EXE 94 PID 4260 wrote to memory of 4556 4260 EXCEL.EXE 94
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\cae176e88f2d6f60a2a2b0c09d8793e95cb6da51f08cd914e7de900b1ca554e4.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:4260 -
C:\Windows\SysWow64\regsvr32.exeC:\Windows\SysWow64\regsvr32.exe -s ..\adw.dll2⤵
- Process spawned unexpected child process
- System Location Discovery: System Language Discovery
PID:4556
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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
MD54c0c6e4021a14c4626069efb90a2d7ac
SHA13928c73278a504d2df7f4e005612c4a35a7b3683
SHA2562af1e512721c3831c9a5eddebdfc99e6c052f6f0113705fe0e5e21650e9fe1df
SHA512f56eb8f3a3080fcf72840f475971c1203492651784efabc5f8e07b7ea5b4599c3eb52fb1f315f399ebb28699372e5440f212c09566b1024be455292a095ee6b4
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Filesize
82B
MD598f4a2fc2ed62a2d58dfd8665525bdf6
SHA16263986a53868c51cea22db308470af551bb2075
SHA2563c1a63b59c237d3bb143e42eb9d309be15312ff604c51bc8ab1fdd1c4b3e08fe
SHA5121ac507d20459ea5a4fb58c6be36fcc0dfc7c1e117a99bae97c52b5498dfbc7bfdb8cf20840fd202db59dbb711e815c3f3f90efb43fec296f0260ee89bce35455