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Analysis
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max time kernel
154s -
max time network
161s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
11/02/2023, 02:22
Behavioral task
behavioral1
Sample
f5c526fd505d86be5d8665a4852e6e2d2fe24ece2fff8a92e7042682315f303c.xls
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
f5c526fd505d86be5d8665a4852e6e2d2fe24ece2fff8a92e7042682315f303c.xls
Resource
win10v2004-20221111-en
General
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Target
f5c526fd505d86be5d8665a4852e6e2d2fe24ece2fff8a92e7042682315f303c.xls
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Size
217KB
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MD5
be7cedd7ced2867f4b746a208b7fc925
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SHA1
73303331e9cb08a3ef344d3f751b506fee29e71b
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SHA256
f5c526fd505d86be5d8665a4852e6e2d2fe24ece2fff8a92e7042682315f303c
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SHA512
a72af25fd7c6f7cba2644b149e73c8f708b94aba0d647dd6f4d6bb29ce8cf82e7886e7c694ecb746fbd889841a5c4b8788120b833002588dbcd9c6f45ad2723f
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SSDEEP
6144:HKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgByY+TAQXTHGUMEyP5p6f5jQmK:BbGUMVWlbK
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 116 2212 regsvr32.exe 74 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1268 2212 regsvr32.exe 74 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4280 2212 regsvr32.exe 74 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4344 2212 regsvr32.exe 74 -
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 2212 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 2212 EXCEL.EXE 2212 EXCEL.EXE 2212 EXCEL.EXE 2212 EXCEL.EXE 2212 EXCEL.EXE 2212 EXCEL.EXE 2212 EXCEL.EXE 2212 EXCEL.EXE 2212 EXCEL.EXE 2212 EXCEL.EXE 2212 EXCEL.EXE 2212 EXCEL.EXE 2212 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2212 wrote to memory of 116 2212 EXCEL.EXE 85 PID 2212 wrote to memory of 116 2212 EXCEL.EXE 85 PID 2212 wrote to memory of 1268 2212 EXCEL.EXE 86 PID 2212 wrote to memory of 1268 2212 EXCEL.EXE 86 PID 2212 wrote to memory of 4280 2212 EXCEL.EXE 87 PID 2212 wrote to memory of 4280 2212 EXCEL.EXE 87 PID 2212 wrote to memory of 4344 2212 EXCEL.EXE 88 PID 2212 wrote to memory of 4344 2212 EXCEL.EXE 88
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\f5c526fd505d86be5d8665a4852e6e2d2fe24ece2fff8a92e7042682315f303c.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2212 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx2⤵
- Process spawned unexpected child process
PID:116
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx2⤵
- Process spawned unexpected child process
PID:1268
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx2⤵
- Process spawned unexpected child process
PID:4280
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx2⤵
- Process spawned unexpected child process
PID:4344
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