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Analysis
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max time kernel
154s -
max time network
173s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
11/02/2023, 02:22
Behavioral task
behavioral1
Sample
a9c2f27b0666affc9f3cb78b5d662606cd0cb1be1c1dafd2c260ae229953b7c0.xls
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
a9c2f27b0666affc9f3cb78b5d662606cd0cb1be1c1dafd2c260ae229953b7c0.xls
Resource
win10v2004-20220812-en
General
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Target
a9c2f27b0666affc9f3cb78b5d662606cd0cb1be1c1dafd2c260ae229953b7c0.xls
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Size
218KB
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MD5
8fbaa780c9336ea8887d8949ed114799
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SHA1
726c148c897365be9f482d0dc1fcad6929461acc
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SHA256
a9c2f27b0666affc9f3cb78b5d662606cd0cb1be1c1dafd2c260ae229953b7c0
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SHA512
53dd882d04aaeded21d57856e9940ad71ce71c409c45d27a8ece5b72e13f5f52386bef984c83edcea62df772ecfba59fcf7729bdb944a4a3d209ba20430353d5
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SSDEEP
6144:ik3hOdsylKlgxopeiBNhZF+E+W2kdALyY+TAQXTHGUMEyP5p6f5jQmqi:PbGUMVWlbqi
Malware Config
Extracted
http://ftp.agir-santeinternationale.com/doctors/KAacngW97n4ApzVBDdGy/
http://www.vinyz.com/admin3693/BDFFgAZ6zBRumcUSG/
http://ly.yjlianyi.top/wp-admin/NRAdJ/
http://www.muyehuayi.com/cmp/Vtm2m7z88g/
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 3096 4060 regsvr32.exe 78 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 972 4060 regsvr32.exe 78 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2252 4060 regsvr32.exe 78 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3860 4060 regsvr32.exe 78 -
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 4060 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4060 EXCEL.EXE 4060 EXCEL.EXE 4060 EXCEL.EXE 4060 EXCEL.EXE 4060 EXCEL.EXE 4060 EXCEL.EXE 4060 EXCEL.EXE 4060 EXCEL.EXE 4060 EXCEL.EXE 4060 EXCEL.EXE 4060 EXCEL.EXE 4060 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4060 wrote to memory of 3096 4060 EXCEL.EXE 82 PID 4060 wrote to memory of 3096 4060 EXCEL.EXE 82 PID 4060 wrote to memory of 972 4060 EXCEL.EXE 84 PID 4060 wrote to memory of 972 4060 EXCEL.EXE 84 PID 4060 wrote to memory of 2252 4060 EXCEL.EXE 86 PID 4060 wrote to memory of 2252 4060 EXCEL.EXE 86 PID 4060 wrote to memory of 3860 4060 EXCEL.EXE 87 PID 4060 wrote to memory of 3860 4060 EXCEL.EXE 87
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\a9c2f27b0666affc9f3cb78b5d662606cd0cb1be1c1dafd2c260ae229953b7c0.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4060 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx2⤵
- Process spawned unexpected child process
PID:3096
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx2⤵
- Process spawned unexpected child process
PID:972
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx2⤵
- Process spawned unexpected child process
PID:2252
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx2⤵
- Process spawned unexpected child process
PID:3860
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