Analysis
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max time kernel
150s -
max time network
147s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 03:39
Behavioral task
behavioral1
Sample
fd83cf7f1a5cfde8cbb5c54caadf87548d76bc531c032999f26ec0415cc1ca7b.xls
Resource
win10-20220414-en
General
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Target
fd83cf7f1a5cfde8cbb5c54caadf87548d76bc531c032999f26ec0415cc1ca7b.xls
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Size
95KB
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MD5
7864db7635b417b32cd0b3876ad93a16
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SHA1
1f1266de974fca22357ceb6b236f1ba8f3d939f7
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SHA256
fd83cf7f1a5cfde8cbb5c54caadf87548d76bc531c032999f26ec0415cc1ca7b
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SHA512
1001cdb89fcb217100f9fabd3cf3f531075934f7b9e0ed5a0a41ae3b9af1c8dc1a0cc8941f6ef3b46c3e5cff8e89b92f9654769ea4ac180723f354697194df7a
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 3800 2628 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4400 2628 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3056 2628 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3744 2628 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 2628 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 2628 EXCEL.EXE 2628 EXCEL.EXE 2628 EXCEL.EXE 2628 EXCEL.EXE 2628 EXCEL.EXE 2628 EXCEL.EXE 2628 EXCEL.EXE 2628 EXCEL.EXE 2628 EXCEL.EXE 2628 EXCEL.EXE 2628 EXCEL.EXE 2628 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 2628 wrote to memory of 3800 2628 EXCEL.EXE regsvr32.exe PID 2628 wrote to memory of 3800 2628 EXCEL.EXE regsvr32.exe PID 2628 wrote to memory of 4400 2628 EXCEL.EXE regsvr32.exe PID 2628 wrote to memory of 4400 2628 EXCEL.EXE regsvr32.exe PID 2628 wrote to memory of 3056 2628 EXCEL.EXE regsvr32.exe PID 2628 wrote to memory of 3056 2628 EXCEL.EXE regsvr32.exe PID 2628 wrote to memory of 3744 2628 EXCEL.EXE regsvr32.exe PID 2628 wrote to memory of 3744 2628 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\fd83cf7f1a5cfde8cbb5c54caadf87548d76bc531c032999f26ec0415cc1ca7b.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\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/2628-117-0x00007FFFA31B0000-0x00007FFFA31C0000-memory.dmpFilesize
64KB
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memory/2628-118-0x00007FFFA31B0000-0x00007FFFA31C0000-memory.dmpFilesize
64KB
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memory/2628-119-0x00007FFFA31B0000-0x00007FFFA31C0000-memory.dmpFilesize
64KB
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memory/2628-120-0x00007FFFA31B0000-0x00007FFFA31C0000-memory.dmpFilesize
64KB
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memory/2628-129-0x00007FFF9F980000-0x00007FFF9F990000-memory.dmpFilesize
64KB
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memory/2628-130-0x00007FFF9F980000-0x00007FFF9F990000-memory.dmpFilesize
64KB
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memory/3056-261-0x0000000000000000-mapping.dmp
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memory/3744-264-0x0000000000000000-mapping.dmp
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memory/3800-259-0x0000000000000000-mapping.dmp
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memory/4400-260-0x0000000000000000-mapping.dmp