Analysis
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max time kernel
123s -
max time network
105s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 03:51
Behavioral task
behavioral1
Sample
0f66003ac304ffa032e846ad8f7349125b4efdc3260d6bd74771e688568463a3.xls
Resource
win10-20220414-en
Behavioral task
behavioral2
Sample
0f66003ac304ffa032e846ad8f7349125b4efdc3260d6bd74771e688568463a3.xls
Resource
win10-20220414-en
General
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Target
0f66003ac304ffa032e846ad8f7349125b4efdc3260d6bd74771e688568463a3.xls
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Size
95KB
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MD5
bd4b08eff8e72025566031778251ad8d
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SHA1
759fb0b7c479f602267633125efb9dff5d5cbd2c
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SHA256
0f66003ac304ffa032e846ad8f7349125b4efdc3260d6bd74771e688568463a3
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SHA512
8c60482ca8094eeb490b5be1be051f13f0f948f3d6b8dc63bbbd3cf6a82e8db5050c819da33620908f3d8458192c78b9224c20364011efc85ea9afec2d35275b
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 2812 2728 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2088 2728 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2568 2728 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3868 2728 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 2728 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 2728 EXCEL.EXE 2728 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 2728 EXCEL.EXE 2728 EXCEL.EXE 2728 EXCEL.EXE 2728 EXCEL.EXE 2728 EXCEL.EXE 2728 EXCEL.EXE 2728 EXCEL.EXE 2728 EXCEL.EXE 2728 EXCEL.EXE 2728 EXCEL.EXE 2728 EXCEL.EXE 2728 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 2728 wrote to memory of 2812 2728 EXCEL.EXE regsvr32.exe PID 2728 wrote to memory of 2812 2728 EXCEL.EXE regsvr32.exe PID 2728 wrote to memory of 2088 2728 EXCEL.EXE regsvr32.exe PID 2728 wrote to memory of 2088 2728 EXCEL.EXE regsvr32.exe PID 2728 wrote to memory of 2568 2728 EXCEL.EXE regsvr32.exe PID 2728 wrote to memory of 2568 2728 EXCEL.EXE regsvr32.exe PID 2728 wrote to memory of 3868 2728 EXCEL.EXE regsvr32.exe PID 2728 wrote to memory of 3868 2728 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\0f66003ac304ffa032e846ad8f7349125b4efdc3260d6bd74771e688568463a3.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/2088-251-0x0000000000000000-mapping.dmp
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memory/2568-252-0x0000000000000000-mapping.dmp
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memory/2728-295-0x00007FFBDA0A0000-0x00007FFBDA0B0000-memory.dmpFilesize
64KB
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memory/2728-117-0x00007FFBDA0A0000-0x00007FFBDA0B0000-memory.dmpFilesize
64KB
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memory/2728-119-0x00007FFBDA0A0000-0x00007FFBDA0B0000-memory.dmpFilesize
64KB
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memory/2728-118-0x00007FFBDA0A0000-0x00007FFBDA0B0000-memory.dmpFilesize
64KB
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memory/2728-128-0x00007FFBD7160000-0x00007FFBD7170000-memory.dmpFilesize
64KB
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memory/2728-129-0x00007FFBD7160000-0x00007FFBD7170000-memory.dmpFilesize
64KB
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memory/2728-116-0x00007FFBDA0A0000-0x00007FFBDA0B0000-memory.dmpFilesize
64KB
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memory/2728-294-0x00007FFBDA0A0000-0x00007FFBDA0B0000-memory.dmpFilesize
64KB
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memory/2728-292-0x00007FFBDA0A0000-0x00007FFBDA0B0000-memory.dmpFilesize
64KB
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memory/2728-293-0x00007FFBDA0A0000-0x00007FFBDA0B0000-memory.dmpFilesize
64KB
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memory/2812-250-0x0000000000000000-mapping.dmp
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memory/3868-255-0x0000000000000000-mapping.dmp