Analysis
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max time kernel
150s -
max time network
144s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 03:41
Behavioral task
behavioral1
Sample
9a6d1221d391cd56ed38534443e892d9395b372dbad639ac3787649375e2d92a.xls
Resource
win10-20220414-en
General
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Target
9a6d1221d391cd56ed38534443e892d9395b372dbad639ac3787649375e2d92a.xls
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Size
95KB
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MD5
275f57a71fb9ba64e86c43011eda17b2
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SHA1
0dba25dab51ccd06de9d6b605b6053f645262bc6
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SHA256
9a6d1221d391cd56ed38534443e892d9395b372dbad639ac3787649375e2d92a
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SHA512
0b68dba06c19a4ffafcebe0a2b2794b3e128216138bf569c1aa1b9ed28b97cf375bf4d63f81e89a56a938594631ecda9cc19a5b63a1a6c4f773f66accd58f082
Malware Config
Extracted
http://www.sunflowerlaboratory.in/fonts/79Tq62ly/
http://dirigent.co.uk/vardagsekonomi/iC36jJ4J1cf/
http://agtrade.hu/images/kiQYmOs2tSKq/
https://www.zachboyle.com/wp-admin/EA470ZrTGNkuA/
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 4532 4708 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4540 4708 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3384 4708 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4584 4708 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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 4708 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 4708 EXCEL.EXE 4708 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 4708 EXCEL.EXE 4708 EXCEL.EXE 4708 EXCEL.EXE 4708 EXCEL.EXE 4708 EXCEL.EXE 4708 EXCEL.EXE 4708 EXCEL.EXE 4708 EXCEL.EXE 4708 EXCEL.EXE 4708 EXCEL.EXE 4708 EXCEL.EXE 4708 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 4708 wrote to memory of 4532 4708 EXCEL.EXE regsvr32.exe PID 4708 wrote to memory of 4532 4708 EXCEL.EXE regsvr32.exe PID 4708 wrote to memory of 4540 4708 EXCEL.EXE regsvr32.exe PID 4708 wrote to memory of 4540 4708 EXCEL.EXE regsvr32.exe PID 4708 wrote to memory of 3384 4708 EXCEL.EXE regsvr32.exe PID 4708 wrote to memory of 3384 4708 EXCEL.EXE regsvr32.exe PID 4708 wrote to memory of 4584 4708 EXCEL.EXE regsvr32.exe PID 4708 wrote to memory of 4584 4708 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\9a6d1221d391cd56ed38534443e892d9395b372dbad639ac3787649375e2d92a.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
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Downloads
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memory/3384-253-0x0000000000000000-mapping.dmp
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memory/4532-251-0x0000000000000000-mapping.dmp
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memory/4540-252-0x0000000000000000-mapping.dmp
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memory/4584-256-0x0000000000000000-mapping.dmp
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memory/4708-117-0x00007FFEBF6A0000-0x00007FFEBF6B0000-memory.dmpFilesize
64KB
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memory/4708-118-0x00007FFEBF6A0000-0x00007FFEBF6B0000-memory.dmpFilesize
64KB
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memory/4708-119-0x00007FFEBF6A0000-0x00007FFEBF6B0000-memory.dmpFilesize
64KB
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memory/4708-120-0x00007FFEBF6A0000-0x00007FFEBF6B0000-memory.dmpFilesize
64KB
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memory/4708-129-0x00007FFEBC780000-0x00007FFEBC790000-memory.dmpFilesize
64KB
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memory/4708-130-0x00007FFEBC780000-0x00007FFEBC790000-memory.dmpFilesize
64KB