Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 04:41
Behavioral task
behavioral1
Sample
2f553fa3d58a4dd088c4ad75342caebde59ee79255e1c99fda5b8a09a1b47ced.xls
Resource
win10-20220414-en
General
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Target
2f553fa3d58a4dd088c4ad75342caebde59ee79255e1c99fda5b8a09a1b47ced.xls
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Size
95KB
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MD5
3c12ff351346df4033a00f521d88d319
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SHA1
f9b55ef28c63f46383b588a8907c3a398fa2c206
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SHA256
2f553fa3d58a4dd088c4ad75342caebde59ee79255e1c99fda5b8a09a1b47ced
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SHA512
538992721a3003a2034ddc6c87bda4eecac9c8f5c70572cb96196fe0871ea069bced1a019adacbc98a4d2851cc0e158583e3bd269ee6d19276f29b47a13ebd1b
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 2284 1704 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3944 1704 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4020 1704 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3352 1704 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 1704 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 1704 EXCEL.EXE 1704 EXCEL.EXE 1704 EXCEL.EXE 1704 EXCEL.EXE 1704 EXCEL.EXE 1704 EXCEL.EXE 1704 EXCEL.EXE 1704 EXCEL.EXE 1704 EXCEL.EXE 1704 EXCEL.EXE 1704 EXCEL.EXE 1704 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1704 wrote to memory of 2284 1704 EXCEL.EXE regsvr32.exe PID 1704 wrote to memory of 2284 1704 EXCEL.EXE regsvr32.exe PID 1704 wrote to memory of 3944 1704 EXCEL.EXE regsvr32.exe PID 1704 wrote to memory of 3944 1704 EXCEL.EXE regsvr32.exe PID 1704 wrote to memory of 4020 1704 EXCEL.EXE regsvr32.exe PID 1704 wrote to memory of 4020 1704 EXCEL.EXE regsvr32.exe PID 1704 wrote to memory of 3352 1704 EXCEL.EXE regsvr32.exe PID 1704 wrote to memory of 3352 1704 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\2f553fa3d58a4dd088c4ad75342caebde59ee79255e1c99fda5b8a09a1b47ced.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/1704-114-0x00007FF9CF430000-0x00007FF9CF440000-memory.dmpFilesize
64KB
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memory/1704-115-0x00007FF9CF430000-0x00007FF9CF440000-memory.dmpFilesize
64KB
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memory/1704-116-0x00007FF9CF430000-0x00007FF9CF440000-memory.dmpFilesize
64KB
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memory/1704-117-0x00007FF9CF430000-0x00007FF9CF440000-memory.dmpFilesize
64KB
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memory/1704-126-0x00007FF9CC870000-0x00007FF9CC880000-memory.dmpFilesize
64KB
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memory/1704-127-0x00007FF9CC870000-0x00007FF9CC880000-memory.dmpFilesize
64KB
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memory/2284-260-0x0000000000000000-mapping.dmp
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memory/3352-265-0x0000000000000000-mapping.dmp
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memory/3944-261-0x0000000000000000-mapping.dmp
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memory/4020-262-0x0000000000000000-mapping.dmp