Analysis
- max time kernel
70s - max time network
72s - platform
windows7_x64 - resource
win7v20201028 - submitted
01/04/2021, 16:05
Static task
static1
Behavioral task
behavioral1
Sample
50.xlsm
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
50.xlsm
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
- Target 50.xlsm
- Size 84KB
- Sample210401-qvsqa863ea
- SHA256 7e08db8a8fa300b4cd3ffe9b5be146b148b09fb292a3f02a7724bf3679e535fd
- MD5 849ed4be278bf5186bc8d507f015c6bb
- SHA1 5511c4b113895d24a3c99ffa24db15d73a5da8d1
- SHA512 7b73b1e5872a880ba2c13bd02edf2d759b86f45562b8a95a7cc37111273024c5ca974beef74e59272fe6d921c5c145ebb01a2de4ae476fb29cb9a4b561a9d9f2
- 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 2016 1724 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 336 1724 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 348 1724 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 920 1724 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 324 1724 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\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 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 (int) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" 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 (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 - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1724 EXCEL.EXE - Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE - Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1724 wrote to memory of 2016 1724 EXCEL.EXE 31 PID 1724 wrote to memory of 2016 1724 EXCEL.EXE 31 PID 1724 wrote to memory of 2016 1724 EXCEL.EXE 31 PID 1724 wrote to memory of 2016 1724 EXCEL.EXE 31 PID 1724 wrote to memory of 2016 1724 EXCEL.EXE 31 PID 1724 wrote to memory of 2016 1724 EXCEL.EXE 31 PID 1724 wrote to memory of 2016 1724 EXCEL.EXE 31 PID 1724 wrote to memory of 336 1724 EXCEL.EXE 32 PID 1724 wrote to memory of 336 1724 EXCEL.EXE 32 PID 1724 wrote to memory of 336 1724 EXCEL.EXE 32 PID 1724 wrote to memory of 336 1724 EXCEL.EXE 32 PID 1724 wrote to memory of 336 1724 EXCEL.EXE 32 PID 1724 wrote to memory of 336 1724 EXCEL.EXE 32 PID 1724 wrote to memory of 336 1724 EXCEL.EXE 32 PID 1724 wrote to memory of 348 1724 EXCEL.EXE 33 PID 1724 wrote to memory of 348 1724 EXCEL.EXE 33 PID 1724 wrote to memory of 348 1724 EXCEL.EXE 33 PID 1724 wrote to memory of 348 1724 EXCEL.EXE 33 PID 1724 wrote to memory of 348 1724 EXCEL.EXE 33 PID 1724 wrote to memory of 348 1724 EXCEL.EXE 33 PID 1724 wrote to memory of 348 1724 EXCEL.EXE 33 PID 1724 wrote to memory of 920 1724 EXCEL.EXE 34 PID 1724 wrote to memory of 920 1724 EXCEL.EXE 34 PID 1724 wrote to memory of 920 1724 EXCEL.EXE 34 PID 1724 wrote to memory of 920 1724 EXCEL.EXE 34 PID 1724 wrote to memory of 920 1724 EXCEL.EXE 34 PID 1724 wrote to memory of 920 1724 EXCEL.EXE 34 PID 1724 wrote to memory of 920 1724 EXCEL.EXE 34 PID 1724 wrote to memory of 324 1724 EXCEL.EXE 35 PID 1724 wrote to memory of 324 1724 EXCEL.EXE 35 PID 1724 wrote to memory of 324 1724 EXCEL.EXE 35 PID 1724 wrote to memory of 324 1724 EXCEL.EXE 35 PID 1724 wrote to memory of 324 1724 EXCEL.EXE 35 PID 1724 wrote to memory of 324 1724 EXCEL.EXE 35 PID 1724 wrote to memory of 324 1724 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\50.xlsm1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2016
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:336
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:348
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:920
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:324
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