Analysis
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max time kernel
69s -
max time network
9s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
12-03-2021 19:50
Behavioral task
behavioral1
Sample
document-1102936390.xls
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-1102936390.xls
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
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Target
document-1102936390.xls
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Size
138KB
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MD5
de7b4a4cebde9b7d225f21a522269fb1
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SHA1
b90d3a4439b3a0088963f06c6f6185affdee3238
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SHA256
e214a6d292f286a7be2753a0ec6f11ded81e611f2fd39f94ec262a4ff47c2c71
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SHA512
086444a016881f99fc2cd92a987ee18b62200a238abe67701ef127d80ebedbb6ec6092b8e903eba28f456d75bcf4828dfb82f415174726f74fa11d32aea8c706
Score
10/10
Malware Config
Extracted
Language
xlm4.0
Source
URLs
xlm40.dropper
http://nvelj12qyyfi03kqxy.xyz/i.gif
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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 368 1832 rundll32.exe EXCEL.EXE -
Enumerates system info in registry 2 TTPs 1 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE -
Processes:
EXCEL.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1832 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1832 EXCEL.EXE 1832 EXCEL.EXE 1832 EXCEL.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1832 wrote to memory of 368 1832 EXCEL.EXE rundll32.exe PID 1832 wrote to memory of 368 1832 EXCEL.EXE rundll32.exe PID 1832 wrote to memory of 368 1832 EXCEL.EXE rundll32.exe PID 1832 wrote to memory of 368 1832 EXCEL.EXE rundll32.exe PID 1832 wrote to memory of 368 1832 EXCEL.EXE rundll32.exe PID 1832 wrote to memory of 368 1832 EXCEL.EXE rundll32.exe PID 1832 wrote to memory of 368 1832 EXCEL.EXE rundll32.exe
Processes
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C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\document-1102936390.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1832 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\zfbfg.ere,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:368
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/368-6-0x0000000000000000-mapping.dmp
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memory/368-7-0x0000000075DE1000-0x0000000075DE3000-memory.dmpFilesize
8KB
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memory/792-5-0x000007FEF5D50000-0x000007FEF5FCA000-memory.dmpFilesize
2.5MB
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memory/1832-2-0x000000002F881000-0x000000002F884000-memory.dmpFilesize
12KB
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memory/1832-3-0x0000000070ED1000-0x0000000070ED3000-memory.dmpFilesize
8KB
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memory/1832-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB