Analysis
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max time kernel
70s -
max time network
126s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
14-01-2021 16:18
Behavioral task
behavioral1
Sample
210468bf9c97e5bbae46e464625550d20079fb3766ad33d490f06e0cd037163a.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
210468bf9c97e5bbae46e464625550d20079fb3766ad33d490f06e0cd037163a.xls
Resource
win10v20201028
General
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Target
210468bf9c97e5bbae46e464625550d20079fb3766ad33d490f06e0cd037163a.xls
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Size
54KB
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MD5
0ab5d82db3541b40b3ef56d03efe8a3f
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SHA1
e44e018503f87fa50b1ad1e7e56a3f4a3b56eff9
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SHA256
210468bf9c97e5bbae46e464625550d20079fb3766ad33d490f06e0cd037163a
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SHA512
2824970bfa09450f8266274e4da423b0c418289b033842402959886a8514d4564620a83b82af5217be88eeb088621826f816e0fa320b3c0a11dfc8493eaae1fa
Malware Config
Extracted
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 932 1096 rundll32.exe EXCEL.EXE -
Office loads VBA resources, possible macro or embedded object present
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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 (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 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\Toolbar\ShowDiscussionButton = "Yes" 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 (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 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1096 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1096 EXCEL.EXE 1096 EXCEL.EXE 1096 EXCEL.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1096 wrote to memory of 932 1096 EXCEL.EXE rundll32.exe PID 1096 wrote to memory of 932 1096 EXCEL.EXE rundll32.exe PID 1096 wrote to memory of 932 1096 EXCEL.EXE rundll32.exe PID 1096 wrote to memory of 932 1096 EXCEL.EXE rundll32.exe PID 1096 wrote to memory of 932 1096 EXCEL.EXE rundll32.exe PID 1096 wrote to memory of 932 1096 EXCEL.EXE rundll32.exe PID 1096 wrote to memory of 932 1096 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\210468bf9c97e5bbae46e464625550d20079fb3766ad33d490f06e0cd037163a.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 C:\IntelCompany\JIOLAS.RRTTOOKK,DllRegisterServer2⤵
- Process spawned unexpected child process