Analysis
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max time kernel
136s -
max time network
130s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
12-03-2021 20:56
Behavioral task
behavioral1
Sample
document-1865975572.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
document-1865975572.xls
Resource
win10v20201028
General
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Target
document-1865975572.xls
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Size
138KB
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MD5
049b4936a69c550eada3b931d7124e25
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SHA1
166085d0c208891568b450fa1e6220025400fc31
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SHA256
29171354e4ae13a40193f189cae9b3c9376265ff67697efb1da97cd6ebeaf4f1
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SHA512
8e28ad1233009ec3e632c4d1700665080945138526578a74bd9465c8ddae7011b7c2172378152d6ec61672337872e6af8980c6b835f2eb61a488d4c764e724e8
Malware Config
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3408 1212 rundll32.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 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 1212 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 1212 EXCEL.EXE 1212 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 1212 EXCEL.EXE 1212 EXCEL.EXE 1212 EXCEL.EXE 1212 EXCEL.EXE 1212 EXCEL.EXE 1212 EXCEL.EXE 1212 EXCEL.EXE 1212 EXCEL.EXE 1212 EXCEL.EXE 1212 EXCEL.EXE 1212 EXCEL.EXE 1212 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1212 wrote to memory of 3408 1212 EXCEL.EXE rundll32.exe PID 1212 wrote to memory of 3408 1212 EXCEL.EXE rundll32.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\document-1865975572.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
PID:1212 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\zfbfg.ere,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3408
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/1212-2-0x00007FFC22770000-0x00007FFC22780000-memory.dmpFilesize
64KB
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memory/1212-3-0x00007FFC22770000-0x00007FFC22780000-memory.dmpFilesize
64KB
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memory/1212-4-0x00007FFC22770000-0x00007FFC22780000-memory.dmpFilesize
64KB
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memory/1212-5-0x00007FFC484B0000-0x00007FFC48AE7000-memory.dmpFilesize
6.2MB
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memory/1212-6-0x00007FFC22770000-0x00007FFC22780000-memory.dmpFilesize
64KB
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memory/3408-7-0x0000000000000000-mapping.dmp