Analysis
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max time kernel
120s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
02-03-2023 13:59
Behavioral task
behavioral1
Sample
2022-11-12-e55e292c5eb77635423190a98a89863f_unzipped.xls
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
2022-11-12-e55e292c5eb77635423190a98a89863f_unzipped.xls
Resource
win10v2004-20230220-en
General
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Target
2022-11-12-e55e292c5eb77635423190a98a89863f_unzipped.xls
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Size
91KB
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MD5
e55e292c5eb77635423190a98a89863f
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SHA1
517a5845a7e0f7af25366eace0ef15cefcef1ad2
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SHA256
798d228040a2f838593fb8eeb1433db409ae4b84b98eeb4d7e12f12ff6664a7e
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SHA512
e189460fd12ac5166808e24f4ffe82ab9fa478b274e1eac146d8de2bae8c6ddbe6ca8f59c33c0ee0722898d888a9616d48b7e6f22ca064ae92c5c10ee4df1815
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SSDEEP
1536:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgHbCXuZH4gb4CEn9J4ZPX5:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgl
Malware Config
Extracted
https://datie-tw.com/img/O8G0RDZj7MYCuJyPoP/
http://sbm.xinmoshiwang.com/upload/VaOfWEb3pW76UO/
https://copunupo.ac.zm/cgi-bin/WFFcGx/
http://ly.yjlianyi.top/wp-admin/4cChao/
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 404 644 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 5112 644 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2064 644 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3716 644 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 644 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 644 EXCEL.EXE 644 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 644 EXCEL.EXE 644 EXCEL.EXE 644 EXCEL.EXE 644 EXCEL.EXE 644 EXCEL.EXE 644 EXCEL.EXE 644 EXCEL.EXE 644 EXCEL.EXE 644 EXCEL.EXE 644 EXCEL.EXE 644 EXCEL.EXE 644 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 644 wrote to memory of 404 644 EXCEL.EXE regsvr32.exe PID 644 wrote to memory of 404 644 EXCEL.EXE regsvr32.exe PID 644 wrote to memory of 5112 644 EXCEL.EXE regsvr32.exe PID 644 wrote to memory of 5112 644 EXCEL.EXE regsvr32.exe PID 644 wrote to memory of 2064 644 EXCEL.EXE regsvr32.exe PID 644 wrote to memory of 2064 644 EXCEL.EXE regsvr32.exe PID 644 wrote to memory of 3716 644 EXCEL.EXE regsvr32.exe PID 644 wrote to memory of 3716 644 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\2022-11-12-e55e292c5eb77635423190a98a89863f_unzipped.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/644-133-0x00007FF85D670000-0x00007FF85D680000-memory.dmpFilesize
64KB
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memory/644-134-0x00007FF85D670000-0x00007FF85D680000-memory.dmpFilesize
64KB
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memory/644-135-0x00007FF85D670000-0x00007FF85D680000-memory.dmpFilesize
64KB
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memory/644-136-0x00007FF85D670000-0x00007FF85D680000-memory.dmpFilesize
64KB
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memory/644-137-0x00007FF85D670000-0x00007FF85D680000-memory.dmpFilesize
64KB
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memory/644-138-0x00007FF85B190000-0x00007FF85B1A0000-memory.dmpFilesize
64KB
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memory/644-139-0x00007FF85B190000-0x00007FF85B1A0000-memory.dmpFilesize
64KB