Analysis
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max time kernel
75s -
max time network
44s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
15-03-2021 08:59
Behavioral task
behavioral1
Sample
dettagli_2517.xlsb
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
dettagli_2517.xlsb
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
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Target
dettagli_2517.xlsb
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Size
70KB
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MD5
cdb4ea173e760c17c878e8ef971ca44c
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SHA1
cb2435438ee50aa5b7d8824fea05dfc551cefaa5
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SHA256
13b621c377bf201be03f90e6b7d800b29ffa47419646ff2412e99eb8d22ad709
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SHA512
b4a3f34709c28170f090f362bd951e23762e6440a88eb2de98ca1eae6b000d8a0b531b4924fd097754718e42ab9715f87b9dc41f434c7baa33ae29f8d7f9263a
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 1600 1812 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 Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1812 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 5 IoCs
Processes:
EXCEL.EXEpid process 1812 EXCEL.EXE 1812 EXCEL.EXE 1812 EXCEL.EXE 1812 EXCEL.EXE 1812 EXCEL.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1812 wrote to memory of 1600 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1600 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1600 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1600 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1600 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1600 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1600 1812 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_2517.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/580-5-0x000007FEF79D0000-0x000007FEF7C4A000-memory.dmpFilesize
2.5MB
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memory/1600-6-0x0000000000000000-mapping.dmp
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memory/1600-7-0x0000000076241000-0x0000000076243000-memory.dmpFilesize
8KB
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memory/1812-2-0x000000002F2B1000-0x000000002F2B4000-memory.dmpFilesize
12KB
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memory/1812-3-0x0000000071241000-0x0000000071243000-memory.dmpFilesize
8KB
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memory/1812-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB