Analysis
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max time kernel
91s -
max time network
125s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
16-03-2021 15:44
Behavioral task
behavioral1
Sample
1810657040_03162021.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
1810657040_03162021.xls
Resource
win10v20201028
General
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Target
1810657040_03162021.xls
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Size
231KB
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MD5
ba059e643683b9f9d9ac90019e9c01be
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SHA1
343106168eb7e0e8ba9b1f273238770bf408c0ca
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SHA256
eebbfb1607fff4c6cbb6ff226dbe362071d98ba36f87bc2c731365e095af7a9c
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SHA512
4ddbcf478bcbb5eb34618b0969206660e4a7c7bedfc4fcbf2431917aa68930fc4264f5d8f88b10a1f25d387e8349260f9a70e46807c1cb8f27d9b83269706f87
Malware Config
Extracted
http://188.127.235.232/44271.6590251157.dat
http://193.38.54.165/44271.6590251157.dat
http://185.82.218.54/44271.6590251157.dat
http://44271.6590251157.dat
Signatures
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Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
Rundll32.exeRundll32.exeRundll32.exedescription pid pid_target process target process Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1144 2008 Rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1060 2008 Rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1500 2008 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\E&xport to Microsoft Excel 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\Toolbar EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt 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 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\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 2008 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 2008 EXCEL.EXE 2008 EXCEL.EXE 2008 EXCEL.EXE -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 2008 wrote to memory of 1144 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1144 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1144 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1144 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1144 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1144 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1144 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1060 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1060 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1060 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1060 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1060 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1060 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1060 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1500 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1500 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1500 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1500 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1500 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1500 2008 EXCEL.EXE Rundll32.exe PID 2008 wrote to memory of 1500 2008 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\1810657040_03162021.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\Rundll32.exeRundll32 ..\Kiod.hod,DllRegisterServer2⤵
- Process spawned unexpected child process
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C:\Windows\SysWOW64\Rundll32.exeRundll32 ..\Kiod.hod1,DllRegisterServer2⤵
- Process spawned unexpected child process
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C:\Windows\SysWOW64\Rundll32.exeRundll32 ..\Kiod.hod2,DllRegisterServer2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/788-5-0x000007FEF5D50000-0x000007FEF5FCA000-memory.dmpFilesize
2.5MB
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memory/1060-8-0x0000000000000000-mapping.dmp
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memory/1144-6-0x0000000000000000-mapping.dmp
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memory/1144-7-0x0000000075EA1000-0x0000000075EA3000-memory.dmpFilesize
8KB
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memory/1500-10-0x0000000000000000-mapping.dmp
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memory/2008-2-0x000000002F741000-0x000000002F744000-memory.dmpFilesize
12KB
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memory/2008-3-0x0000000070FA1000-0x0000000070FA3000-memory.dmpFilesize
8KB
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memory/2008-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB