Analysis
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max time kernel
149s -
max time network
145s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 04:08
Behavioral task
behavioral1
Sample
53d61efc5abf23d9ecea5e034e0f5c725b9eb5fcc90b8dcd93cd9c373194db2d.xls
Resource
win10-20220414-en
General
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Target
53d61efc5abf23d9ecea5e034e0f5c725b9eb5fcc90b8dcd93cd9c373194db2d.xls
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Size
95KB
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MD5
d9fa108e5f31eee76813bdaf8c40ef90
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SHA1
e1c8915e352b435128e78789922bc01d6fbd2518
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SHA256
53d61efc5abf23d9ecea5e034e0f5c725b9eb5fcc90b8dcd93cd9c373194db2d
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SHA512
5b400e914d2e4361f0b97d7d5355fcdebdafe83a0ff64857da3ada769ec6e16e2f7fea622500c61ddcd983f59b5509cc422ac66af48b5923bb40f29fdc379b1e
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 4592 3076 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4672 3076 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3348 3076 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3920 3076 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 3076 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 3076 EXCEL.EXE 3076 EXCEL.EXE 3076 EXCEL.EXE 3076 EXCEL.EXE 3076 EXCEL.EXE 3076 EXCEL.EXE 3076 EXCEL.EXE 3076 EXCEL.EXE 3076 EXCEL.EXE 3076 EXCEL.EXE 3076 EXCEL.EXE 3076 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 3076 wrote to memory of 4592 3076 EXCEL.EXE regsvr32.exe PID 3076 wrote to memory of 4592 3076 EXCEL.EXE regsvr32.exe PID 3076 wrote to memory of 4672 3076 EXCEL.EXE regsvr32.exe PID 3076 wrote to memory of 4672 3076 EXCEL.EXE regsvr32.exe PID 3076 wrote to memory of 3348 3076 EXCEL.EXE regsvr32.exe PID 3076 wrote to memory of 3348 3076 EXCEL.EXE regsvr32.exe PID 3076 wrote to memory of 3920 3076 EXCEL.EXE regsvr32.exe PID 3076 wrote to memory of 3920 3076 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\53d61efc5abf23d9ecea5e034e0f5c725b9eb5fcc90b8dcd93cd9c373194db2d.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/3076-117-0x00007FFDF6F50000-0x00007FFDF6F60000-memory.dmpFilesize
64KB
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memory/3076-118-0x00007FFDF6F50000-0x00007FFDF6F60000-memory.dmpFilesize
64KB
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memory/3076-119-0x00007FFDF6F50000-0x00007FFDF6F60000-memory.dmpFilesize
64KB
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memory/3076-120-0x00007FFDF6F50000-0x00007FFDF6F60000-memory.dmpFilesize
64KB
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memory/3076-129-0x00007FFDF4120000-0x00007FFDF4130000-memory.dmpFilesize
64KB
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memory/3076-130-0x00007FFDF4120000-0x00007FFDF4130000-memory.dmpFilesize
64KB
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memory/3348-261-0x0000000000000000-mapping.dmp
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memory/3920-264-0x0000000000000000-mapping.dmp
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memory/4592-259-0x0000000000000000-mapping.dmp
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memory/4672-260-0x0000000000000000-mapping.dmp