Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 04:00
Behavioral task
behavioral1
Sample
177617cf62f42e2f132d723597fb4ed407265003307a19d3fd6d5d7a6104eeb7.xls
Resource
win10-20220414-en
Behavioral task
behavioral2
Sample
177617cf62f42e2f132d723597fb4ed407265003307a19d3fd6d5d7a6104eeb7.xls
Resource
win10-20220414-en
General
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Target
177617cf62f42e2f132d723597fb4ed407265003307a19d3fd6d5d7a6104eeb7.xls
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Size
95KB
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MD5
ca0ef5c3dcc93cd2f5153404eecacd1e
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SHA1
04fa28d61366835a5191127e3ad4688c0d6a7ca0
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SHA256
177617cf62f42e2f132d723597fb4ed407265003307a19d3fd6d5d7a6104eeb7
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SHA512
c49fb782e5c145213375e1a67f865311fb6c13ba5d342ff972733c1f1b79f630a47b6134e5936d485000f69b28e675b556e05c301cca880b877fb99cc3b2de22
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 4856 2356 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3164 2356 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3152 2356 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4780 2356 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\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 2356 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 2356 EXCEL.EXE 2356 EXCEL.EXE 2356 EXCEL.EXE 2356 EXCEL.EXE 2356 EXCEL.EXE 2356 EXCEL.EXE 2356 EXCEL.EXE 2356 EXCEL.EXE 2356 EXCEL.EXE 2356 EXCEL.EXE 2356 EXCEL.EXE 2356 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 2356 wrote to memory of 4856 2356 EXCEL.EXE regsvr32.exe PID 2356 wrote to memory of 4856 2356 EXCEL.EXE regsvr32.exe PID 2356 wrote to memory of 3164 2356 EXCEL.EXE regsvr32.exe PID 2356 wrote to memory of 3164 2356 EXCEL.EXE regsvr32.exe PID 2356 wrote to memory of 3152 2356 EXCEL.EXE regsvr32.exe PID 2356 wrote to memory of 3152 2356 EXCEL.EXE regsvr32.exe PID 2356 wrote to memory of 4780 2356 EXCEL.EXE regsvr32.exe PID 2356 wrote to memory of 4780 2356 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\177617cf62f42e2f132d723597fb4ed407265003307a19d3fd6d5d7a6104eeb7.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/2356-117-0x00007FF7CABB0000-0x00007FF7CABC0000-memory.dmpFilesize
64KB
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memory/2356-118-0x00007FF7CABB0000-0x00007FF7CABC0000-memory.dmpFilesize
64KB
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memory/2356-119-0x00007FF7CABB0000-0x00007FF7CABC0000-memory.dmpFilesize
64KB
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memory/2356-120-0x00007FF7CABB0000-0x00007FF7CABC0000-memory.dmpFilesize
64KB
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memory/2356-129-0x00007FF7C7040000-0x00007FF7C7050000-memory.dmpFilesize
64KB
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memory/2356-130-0x00007FF7C7040000-0x00007FF7C7050000-memory.dmpFilesize
64KB
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memory/3152-265-0x0000000000000000-mapping.dmp
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memory/3164-264-0x0000000000000000-mapping.dmp
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memory/4780-268-0x0000000000000000-mapping.dmp
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memory/4856-263-0x0000000000000000-mapping.dmp