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Analysis
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max time kernel
129s -
max time network
131s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
04/11/2022, 11:45
Behavioral task
behavioral1
Sample
e8085fda85865155aa942efb04e789962791ca7d0338216674a8e28c1e1a60ae.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
e8085fda85865155aa942efb04e789962791ca7d0338216674a8e28c1e1a60ae.xls
Resource
win10-20220901-en
General
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Target
e8085fda85865155aa942efb04e789962791ca7d0338216674a8e28c1e1a60ae.xls
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Size
217KB
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MD5
bc33b79e5ae05e7611a77449a9538610
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SHA1
9cac3606f7e4d5a693d53e4b0ba239a26d27a536
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SHA256
e8085fda85865155aa942efb04e789962791ca7d0338216674a8e28c1e1a60ae
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SHA512
f5ab02ba498e0a2ef0b0c3753ea7eea15a894efb63a3bee81eeb4ef0b489c5a260fe3d2a5cceb19be630ec629769e744c5a83ad8d03db4d91700c864b4d1d9c5
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SSDEEP
6144:OKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgIyY+TAQXTHGUMEyP5p6f5jQmG:bbGUMVWlbG
Malware Config
Extracted
http://cursosinterativos.com.br/semprichickoff2/pEl/
http://mulmatdol.com/adm/Fa/
http://www.tugarden.com/docs/csv_import/rf6bMPAtbBPiDK/
http://www.darularqompatean.com/asq/IcVMFfwR65Yf8fMd5G/
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 4284 1020 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3116 1020 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4496 1020 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2332 1020 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 1020 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1020 wrote to memory of 4284 1020 EXCEL.EXE 68 PID 1020 wrote to memory of 4284 1020 EXCEL.EXE 68 PID 1020 wrote to memory of 3116 1020 EXCEL.EXE 69 PID 1020 wrote to memory of 3116 1020 EXCEL.EXE 69 PID 1020 wrote to memory of 4496 1020 EXCEL.EXE 70 PID 1020 wrote to memory of 4496 1020 EXCEL.EXE 70 PID 1020 wrote to memory of 2332 1020 EXCEL.EXE 71 PID 1020 wrote to memory of 2332 1020 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\e8085fda85865155aa942efb04e789962791ca7d0338216674a8e28c1e1a60ae.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1020 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx2⤵
- Process spawned unexpected child process
PID:4284
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx2⤵
- Process spawned unexpected child process
PID:3116
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx2⤵
- Process spawned unexpected child process
PID:4496
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx2⤵
- Process spawned unexpected child process
PID:2332
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