Analysis
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max time kernel
70s -
max time network
13s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
15-03-2021 08:03
Behavioral task
behavioral1
Sample
dettagli_2621.xlsb
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
dettagli_2621.xlsb
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
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Target
dettagli_2621.xlsb
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Size
72KB
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MD5
18a30ddb789abef63fcb4584faab7719
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SHA1
e60e2da43be789269fbe744a44950f2d6f57fc7b
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SHA256
9f635e8a769dac16e1aad62fe7d2e9ee5ed7b6ae725044f63e7d8d15919eccdc
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SHA512
45fa1abf876105639dcbadfa94bda25d77f8f7554b1728104e8a5eca37449d007d6e55679bfabef10f0488363b000a50569b2220c023705d4522582aec78f8da
Score
10/10
Malware Config
Extracted
Language
xlm4.0
Source
URLs
xlm40.dropper
http://linestata.casa/register.jpg
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 620 1636 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\Se&nd to OneNote 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 (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\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\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 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\E&xport to Microsoft Excel EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1636 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1636 EXCEL.EXE 1636 EXCEL.EXE 1636 EXCEL.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1636 wrote to memory of 620 1636 EXCEL.EXE rundll32.exe PID 1636 wrote to memory of 620 1636 EXCEL.EXE rundll32.exe PID 1636 wrote to memory of 620 1636 EXCEL.EXE rundll32.exe PID 1636 wrote to memory of 620 1636 EXCEL.EXE rundll32.exe PID 1636 wrote to memory of 620 1636 EXCEL.EXE rundll32.exe PID 1636 wrote to memory of 620 1636 EXCEL.EXE rundll32.exe PID 1636 wrote to memory of 620 1636 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\dettagli_2621.xlsb1⤵
- 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.exe"C:\Windows\System32\rundll32.exe" C:\WumjuMa\vjsRMoq\iJUOgdB.dll,DllRegisterServer2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/620-6-0x0000000000000000-mapping.dmp
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memory/620-7-0x00000000761E1000-0x00000000761E3000-memory.dmpFilesize
8KB
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memory/1636-2-0x000000002F3E1000-0x000000002F3E4000-memory.dmpFilesize
12KB
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memory/1636-3-0x0000000071521000-0x0000000071523000-memory.dmpFilesize
8KB
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memory/1636-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1924-5-0x000007FEF77E0000-0x000007FEF7A5A000-memory.dmpFilesize
2.5MB