Analysis
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max time kernel
148s -
max time network
148s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 03:23
Behavioral task
behavioral1
Sample
dd297e7743f06c69e4f304dced75ec48e62dd66ae3b30e41fe95929e174600c1.xls
Resource
win10-20220414-en
Behavioral task
behavioral2
Sample
dd297e7743f06c69e4f304dced75ec48e62dd66ae3b30e41fe95929e174600c1.xls
Resource
win10-20220414-en
General
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Target
dd297e7743f06c69e4f304dced75ec48e62dd66ae3b30e41fe95929e174600c1.xls
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Size
95KB
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MD5
95528352bdd0bf56d96a7a72309ef041
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SHA1
47510ced7d634285c8419abbc6360782075da9b2
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SHA256
dd297e7743f06c69e4f304dced75ec48e62dd66ae3b30e41fe95929e174600c1
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SHA512
73cb19d6df89a6a9603f957fb556898d04a53bfaa0c41c6f77c1ce1666477a6fbd9add1b0bce6940c4774133090665a567a33ff43e244e7886e7a50871eac0a2
Malware Config
Extracted
https://edoraseguros.com.br/cgi-bin/jQNq9wlH1GXU/
http://earthmach.co.za/libraries/tWkZh9YrXbTd6IeX/
http://finvest.rs/wp-admin/Hr9nVNTIHgw59S/
http://efverstedt.se/5jjaV/w7fLEHJ20xn0qD/
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.
Processes:
regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4624 1276 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2112 1276 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 616 1276 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3932 1276 regsvr32.exe EXCEL.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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1276 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 1276 EXCEL.EXE 1276 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE 1276 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1276 wrote to memory of 4624 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 4624 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 2112 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 2112 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 616 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 616 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 3932 1276 EXCEL.EXE regsvr32.exe PID 1276 wrote to memory of 3932 1276 EXCEL.EXE regsvr32.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\dd297e7743f06c69e4f304dced75ec48e62dd66ae3b30e41fe95929e174600c1.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\soci1.ocx2⤵
- Process spawned unexpected child process
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\soci2.ocx2⤵
- Process spawned unexpected child process
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\soci3.ocx2⤵
- Process spawned unexpected child process
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\soci4.ocx2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/616-256-0x0000000000000000-mapping.dmp
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memory/1276-118-0x00007FFF37550000-0x00007FFF37560000-memory.dmpFilesize
64KB
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memory/1276-120-0x00007FFF37550000-0x00007FFF37560000-memory.dmpFilesize
64KB
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memory/1276-119-0x00007FFF37550000-0x00007FFF37560000-memory.dmpFilesize
64KB
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memory/1276-121-0x00007FFF37550000-0x00007FFF37560000-memory.dmpFilesize
64KB
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memory/1276-130-0x00007FFF33C50000-0x00007FFF33C60000-memory.dmpFilesize
64KB
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memory/1276-131-0x00007FFF33C50000-0x00007FFF33C60000-memory.dmpFilesize
64KB
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memory/2112-255-0x0000000000000000-mapping.dmp
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memory/3932-257-0x0000000000000000-mapping.dmp
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memory/4624-254-0x0000000000000000-mapping.dmp