Analysis
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max time kernel
149s -
max time network
145s -
platform
windows10_x64 -
resource
win10-20220414-en -
submitted
07-07-2022 03:57
Behavioral task
behavioral1
Sample
143125f9e4bd9915b7a66136c6e982e42a9e3e47e82b02daeb1c285203aacb5a.xls
Resource
win10-20220414-en
General
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Target
143125f9e4bd9915b7a66136c6e982e42a9e3e47e82b02daeb1c285203aacb5a.xls
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Size
95KB
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MD5
22842ab89f4a064aad7ce0a774cfb1c3
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SHA1
401db70d4f25947daabb996c587ec20e74861836
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SHA256
143125f9e4bd9915b7a66136c6e982e42a9e3e47e82b02daeb1c285203aacb5a
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SHA512
37e6a160fb57bda815d7c9fd408cecc1b95fec8ed052714c6ba37b4b0155669848fab858dc24c7e61a5f77cf95da730e07e5cfddc36dc6c9c9f001f348e3330c
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 4764 984 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3372 984 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4060 984 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4316 984 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 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 984 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 984 EXCEL.EXE 984 EXCEL.EXE 984 EXCEL.EXE 984 EXCEL.EXE 984 EXCEL.EXE 984 EXCEL.EXE 984 EXCEL.EXE 984 EXCEL.EXE 984 EXCEL.EXE 984 EXCEL.EXE 984 EXCEL.EXE 984 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 984 wrote to memory of 4764 984 EXCEL.EXE regsvr32.exe PID 984 wrote to memory of 4764 984 EXCEL.EXE regsvr32.exe PID 984 wrote to memory of 3372 984 EXCEL.EXE regsvr32.exe PID 984 wrote to memory of 3372 984 EXCEL.EXE regsvr32.exe PID 984 wrote to memory of 4060 984 EXCEL.EXE regsvr32.exe PID 984 wrote to memory of 4060 984 EXCEL.EXE regsvr32.exe PID 984 wrote to memory of 4316 984 EXCEL.EXE regsvr32.exe PID 984 wrote to memory of 4316 984 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\143125f9e4bd9915b7a66136c6e982e42a9e3e47e82b02daeb1c285203aacb5a.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/984-117-0x00007FFF4F230000-0x00007FFF4F240000-memory.dmpFilesize
64KB
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memory/984-118-0x00007FFF4F230000-0x00007FFF4F240000-memory.dmpFilesize
64KB
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memory/984-119-0x00007FFF4F230000-0x00007FFF4F240000-memory.dmpFilesize
64KB
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memory/984-120-0x00007FFF4F230000-0x00007FFF4F240000-memory.dmpFilesize
64KB
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memory/984-129-0x00007FFF4B9B0000-0x00007FFF4B9C0000-memory.dmpFilesize
64KB
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memory/984-130-0x00007FFF4B9B0000-0x00007FFF4B9C0000-memory.dmpFilesize
64KB
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memory/3372-275-0x0000000000000000-mapping.dmp
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memory/4060-277-0x0000000000000000-mapping.dmp
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memory/4316-280-0x0000000000000000-mapping.dmp
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memory/4764-273-0x0000000000000000-mapping.dmp