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Analysis
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max time kernel
133s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
11/11/2024, 21:27
Behavioral task
behavioral1
Sample
87ec8b6572dcbffe635e0727af61a071b6f38a52a009f93c5b9b6016c77f1ec2.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
87ec8b6572dcbffe635e0727af61a071b6f38a52a009f93c5b9b6016c77f1ec2.xls
Resource
win10v2004-20241007-en
General
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Target
87ec8b6572dcbffe635e0727af61a071b6f38a52a009f93c5b9b6016c77f1ec2.xls
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Size
142KB
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MD5
50cfa17901314c512629f9cb2373c222
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SHA1
47ce5bb1efe924260f8653baaea8c9d0ad3cccb2
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SHA256
87ec8b6572dcbffe635e0727af61a071b6f38a52a009f93c5b9b6016c77f1ec2
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SHA512
ec383e5176fc8c521b83ff47d7578bb00115f97c1b83c5d272ce4fe0956510b32611191584bf7c93e9e0b339ce7b7ea50db8d3a2e737c25e93faca6c2fe26b4c
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SSDEEP
3072:kfKpbdrHYrMue8q7QPX+5xtekEdi8/dgR/c/mrWmngyYXnMJelsSKThsdskl4WjN:8KpbdrHYrMue8q7QPX+5xtFEdi8/dgRQ
Malware Config
Extracted
https://www.certika-bolivia.com/omeltxveatup/9Gb/
https://www.cfoodsnepal.com/index/rvAYVKkJgVWiCwt0wV/
https://www.cgaei.com/fonts/ABuQi/
https://www.chotdonhang.com/noi-dung/w1hMfkjuwAne4W2epiP/
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 4768 2572 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 2572 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2572 EXCEL.EXE 2572 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 2572 EXCEL.EXE 2572 EXCEL.EXE 2572 EXCEL.EXE 2572 EXCEL.EXE 2572 EXCEL.EXE 2572 EXCEL.EXE 2572 EXCEL.EXE 2572 EXCEL.EXE 2572 EXCEL.EXE 2572 EXCEL.EXE 2572 EXCEL.EXE 2572 EXCEL.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2572 wrote to memory of 4768 2572 EXCEL.EXE 100 PID 2572 wrote to memory of 4768 2572 EXCEL.EXE 100 PID 2572 wrote to memory of 4768 2572 EXCEL.EXE 100
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\87ec8b6572dcbffe635e0727af61a071b6f38a52a009f93c5b9b6016c77f1ec2.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:2572 -
C:\Windows\SysWow64\regsvr32.exeC:\Windows\SysWow64\regsvr32.exe -s ..\lnau.dll2⤵
- Process spawned unexpected child process
- System Location Discovery: System Language Discovery
PID:4768
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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
MD5a9999af2f5ce86d7a7caf4d36dc4ace6
SHA110192e1fe87e1993d766ff6903b1a87b8d72d797
SHA256e64c1ca6b48b1254dd6e8937a8ef7927c97f8359b46dc3dabb31610787335980
SHA5128ec5953bb9d9652b04f61ba347ebfbc0db19a11772f8b50410166118d238a8b36e3a2badefa18acae3312597a9432f32f036443b0ea19ec6dbc1d6861b407b6d
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Filesize
85KB
MD56bc8a28d166f55a88509b0ae07a019fc
SHA19f565474e4ac1269eeb796874ad4e644d4a6d0fa
SHA25678f353e278bc0e5aa860301e4566645aabf58bc9db5f14020d6e4f87af4a3eb8
SHA51223661130130959bd8b3134b01bc70f2a3de71eb69ab1f7c109045eddec510a60af7278c878f8e51dd5e740da8357a558a66efd57719b3f137f88c2c83a04e6c7