Analysis
- max time kernel
72s - max time network
74s - platform
windows7_x64 - resource
win7v20201028 - submitted
01/04/2021, 15:53
Static task
static1
Behavioral task
behavioral1
Sample
2339.xlsm
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
2339.xlsm
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
- Target 2339.xlsm
- Size 84KB
- Sample210401-61bfbbmt2a
- SHA256 05139d4f22a8e4e86bc073992a14dec378f9ddd7b3e64a91b5152137587f68c2
- MD5 5ce2b959cfadba5e2b7dcab59b26e3f5
- SHA1 7497baa4fbb5544ae31ef118d81ba8e8d826bfe5
- SHA512 dc3863fa9861d76a6dace4daf3ec463a742047cd814d2605448674c7cfcfa09e19b2aaca82e622cf5566fbffba6f38967735dc59fd0c7abe8325d4232ed22204
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Language
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xlm4.0
Source
URLs
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xlm40.dropper
https://vts.us.com/ds/0104.gif
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xlm40.dropper
https://mundotecnologiasolar.com/ds/0104.gif
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xlm40.dropper
https://comosairdoburaco.com.br/ds/0104.gif
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xlm40.dropper
https://accesslinksgroup.com/ds/0104.gif
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xlm40.dropper
https://ponchokhana.com/ds/0104.gif
Signatures
- Process spawned unexpected child process 5 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 888 1204 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1148 1204 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 848 1204 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1472 1204 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 432 1204 rundll32.exe 24 - Enumerates system info in registry 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE -
description ioc Process 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\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\Se&nd to OneNote EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1204 EXCEL.EXE - Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 1204 EXCEL.EXE 1204 EXCEL.EXE 1204 EXCEL.EXE 1204 EXCEL.EXE 1204 EXCEL.EXE 1204 EXCEL.EXE 1204 EXCEL.EXE 1204 EXCEL.EXE 1204 EXCEL.EXE 1204 EXCEL.EXE 1204 EXCEL.EXE 1204 EXCEL.EXE 1204 EXCEL.EXE - Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1204 wrote to memory of 888 1204 EXCEL.EXE 31 PID 1204 wrote to memory of 888 1204 EXCEL.EXE 31 PID 1204 wrote to memory of 888 1204 EXCEL.EXE 31 PID 1204 wrote to memory of 888 1204 EXCEL.EXE 31 PID 1204 wrote to memory of 888 1204 EXCEL.EXE 31 PID 1204 wrote to memory of 888 1204 EXCEL.EXE 31 PID 1204 wrote to memory of 888 1204 EXCEL.EXE 31 PID 1204 wrote to memory of 1148 1204 EXCEL.EXE 32 PID 1204 wrote to memory of 1148 1204 EXCEL.EXE 32 PID 1204 wrote to memory of 1148 1204 EXCEL.EXE 32 PID 1204 wrote to memory of 1148 1204 EXCEL.EXE 32 PID 1204 wrote to memory of 1148 1204 EXCEL.EXE 32 PID 1204 wrote to memory of 1148 1204 EXCEL.EXE 32 PID 1204 wrote to memory of 1148 1204 EXCEL.EXE 32 PID 1204 wrote to memory of 848 1204 EXCEL.EXE 33 PID 1204 wrote to memory of 848 1204 EXCEL.EXE 33 PID 1204 wrote to memory of 848 1204 EXCEL.EXE 33 PID 1204 wrote to memory of 848 1204 EXCEL.EXE 33 PID 1204 wrote to memory of 848 1204 EXCEL.EXE 33 PID 1204 wrote to memory of 848 1204 EXCEL.EXE 33 PID 1204 wrote to memory of 848 1204 EXCEL.EXE 33 PID 1204 wrote to memory of 1472 1204 EXCEL.EXE 34 PID 1204 wrote to memory of 1472 1204 EXCEL.EXE 34 PID 1204 wrote to memory of 1472 1204 EXCEL.EXE 34 PID 1204 wrote to memory of 1472 1204 EXCEL.EXE 34 PID 1204 wrote to memory of 1472 1204 EXCEL.EXE 34 PID 1204 wrote to memory of 1472 1204 EXCEL.EXE 34 PID 1204 wrote to memory of 1472 1204 EXCEL.EXE 34 PID 1204 wrote to memory of 432 1204 EXCEL.EXE 35 PID 1204 wrote to memory of 432 1204 EXCEL.EXE 35 PID 1204 wrote to memory of 432 1204 EXCEL.EXE 35 PID 1204 wrote to memory of 432 1204 EXCEL.EXE 35 PID 1204 wrote to memory of 432 1204 EXCEL.EXE 35 PID 1204 wrote to memory of 432 1204 EXCEL.EXE 35 PID 1204 wrote to memory of 432 1204 EXCEL.EXE 35
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\2339.xlsm1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1204 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:888
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1148
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:848
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1472
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:432
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