Analysis
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max time kernel
149s -
max time network
145s -
platform
windows10-1703_x64 -
resource
win10-20220901-en -
resource tags
arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system -
submitted
10/11/2022, 10:46
Behavioral task
behavioral1
Sample
6ae8e8d67a02561ab597f5effdd94fe220ffe15dff0976105076461dfb56a53c.xls
Resource
win10-20220901-en
Behavioral task
behavioral2
Sample
6ae8e8d67a02561ab597f5effdd94fe220ffe15dff0976105076461dfb56a53c.xls
Resource
win10-20220812-en
General
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Target
6ae8e8d67a02561ab597f5effdd94fe220ffe15dff0976105076461dfb56a53c.xls
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Size
91KB
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MD5
63ad90df92c58c82655a55aba3430a9c
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SHA1
8de32004508534957d6347394a92a75e4ef92b12
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SHA256
6ae8e8d67a02561ab597f5effdd94fe220ffe15dff0976105076461dfb56a53c
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SHA512
6c9450fd216e87008a2c1af03dc630e221beeb9677df15d636d56456d0904a4b038446a329254e25c8ab898bc695386ab54e797f7412c209ea799be5fefd9435
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SSDEEP
1536:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgGbCXuZH4gb4CEn9J4Z/Cs9o2:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgu
Malware Config
Extracted
https://bosny.com/aspnet_client/R50QIOGjmvVlr/
http://navylin.com/autopoisonous/4fZQW/
http://asrani.garudaputih.com/nutabalong/bJYqoUIr99qNfoPDx/
http://db.rikaz.tech/lCx76IlkrBtEsqNFA7/zPYJzpOnzstNOiRHob/
Signatures
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Process spawned unexpected child process 4 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 4488 3848 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4416 3848 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4412 3848 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3680 3848 regsvr32.exe 65 -
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 3848 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3848 EXCEL.EXE 3848 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3848 EXCEL.EXE 3848 EXCEL.EXE 3848 EXCEL.EXE 3848 EXCEL.EXE 3848 EXCEL.EXE 3848 EXCEL.EXE 3848 EXCEL.EXE 3848 EXCEL.EXE 3848 EXCEL.EXE 3848 EXCEL.EXE 3848 EXCEL.EXE 3848 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3848 wrote to memory of 4488 3848 EXCEL.EXE 68 PID 3848 wrote to memory of 4488 3848 EXCEL.EXE 68 PID 3848 wrote to memory of 4416 3848 EXCEL.EXE 69 PID 3848 wrote to memory of 4416 3848 EXCEL.EXE 69 PID 3848 wrote to memory of 4412 3848 EXCEL.EXE 70 PID 3848 wrote to memory of 4412 3848 EXCEL.EXE 70 PID 3848 wrote to memory of 3680 3848 EXCEL.EXE 71 PID 3848 wrote to memory of 3680 3848 EXCEL.EXE 71
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\6ae8e8d67a02561ab597f5effdd94fe220ffe15dff0976105076461dfb56a53c.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:3848 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4488
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4416
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4412
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3680
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