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Analysis
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max time kernel
205s -
max time network
211s -
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
f4784d48cd2a8cc765e9fcedd275c97bb1261b0355386c0e6a7f31fc9a0dbf17.xls
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
f4784d48cd2a8cc765e9fcedd275c97bb1261b0355386c0e6a7f31fc9a0dbf17.xls
Resource
win10v2004-20221111-en
General
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Target
f4784d48cd2a8cc765e9fcedd275c97bb1261b0355386c0e6a7f31fc9a0dbf17.xls
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Size
218KB
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MD5
91adea1d1c57eb2ce7ae45a380038234
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SHA1
842215dd05c7774373e5238ba9645af6f792680a
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SHA256
f4784d48cd2a8cc765e9fcedd275c97bb1261b0355386c0e6a7f31fc9a0dbf17
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SHA512
46086e48fa38fce7c1b77e5179eb69f074a6685c1cd41f5119367297836413871cba2ed23431f317d779db7d49758a19d6a1c1d09b37c95be2ec7f2e9696e2b4
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SSDEEP
6144:ik3hOdsylKlgxopeiBNhZF+E+W2kdASyY+TAQXTHGUMEyP5p6f5jQmbh:wbGUMVWlbbh
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 2160 5116 regsvr32.exe 77 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2744 5116 regsvr32.exe 77 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3292 5116 regsvr32.exe 77 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1256 5116 regsvr32.exe 77 -
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 5116 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 5116 EXCEL.EXE 5116 EXCEL.EXE 5116 EXCEL.EXE 5116 EXCEL.EXE 5116 EXCEL.EXE 5116 EXCEL.EXE 5116 EXCEL.EXE 5116 EXCEL.EXE 5116 EXCEL.EXE 5116 EXCEL.EXE 5116 EXCEL.EXE 5116 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 5116 wrote to memory of 2160 5116 EXCEL.EXE 81 PID 5116 wrote to memory of 2160 5116 EXCEL.EXE 81 PID 5116 wrote to memory of 2744 5116 EXCEL.EXE 82 PID 5116 wrote to memory of 2744 5116 EXCEL.EXE 82 PID 5116 wrote to memory of 3292 5116 EXCEL.EXE 83 PID 5116 wrote to memory of 3292 5116 EXCEL.EXE 83 PID 5116 wrote to memory of 1256 5116 EXCEL.EXE 84 PID 5116 wrote to memory of 1256 5116 EXCEL.EXE 84
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\f4784d48cd2a8cc765e9fcedd275c97bb1261b0355386c0e6a7f31fc9a0dbf17.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5116 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx2⤵
- Process spawned unexpected child process
PID:2160
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx2⤵
- Process spawned unexpected child process
PID:2744
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx2⤵
- Process spawned unexpected child process
PID:3292
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx2⤵
- Process spawned unexpected child process
PID:1256
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