Analysis
- max time kernel
146s - max time network
147s - platform
windows7_x64 - resource
win7v20201028 - submitted
01/04/2021, 17:15
Static task
static1
Behavioral task
behavioral1
Sample
71923841627-04012021.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
71923841627-04012021.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target 71923841627-04012021.xlsm
- Size 173KB
- Sample210401-jqw4566hex
- SHA256 2f4f675900433f167fc04d0a2009195548db1f4aaa0a4d5b70443dcd341aeac0
- MD5 dc221013d9f68f9641fc16cf70efed32
- SHA1 4444a75c26d4563160c03939793746b1c8059e22
- SHA512 37794852979fcf81973d1c94c00dc54958e7c9946ce042566b833d57d84a87cabda71fd0aa39ab04bb38a6f6efb8dc601d0a8ced84387c97b395d2ee072a3d55
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Language
-
xlm4.0
Source
URLs
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xlm40.dropper
http://45.150.67.244/44285,5327891204.dat
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xlm40.dropper
http://195.123.210.248/44285,5327891204.dat
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xlm40.dropper
http://91.211.91.69/44285,5327891204.dat
Signatures
- Process spawned unexpected child process 3 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 1528 1968 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1044 1968 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1328 1968 rundll32.exe 24 - Office loads VBA resources, possible macro or embedded object present
- 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 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 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 (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\Se&nd to OneNote 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 (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 - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1968 EXCEL.EXE - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1968 EXCEL.EXE 1968 EXCEL.EXE 1968 EXCEL.EXE - Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1968 wrote to memory of 1528 1968 EXCEL.EXE 31 PID 1968 wrote to memory of 1528 1968 EXCEL.EXE 31 PID 1968 wrote to memory of 1528 1968 EXCEL.EXE 31 PID 1968 wrote to memory of 1528 1968 EXCEL.EXE 31 PID 1968 wrote to memory of 1528 1968 EXCEL.EXE 31 PID 1968 wrote to memory of 1528 1968 EXCEL.EXE 31 PID 1968 wrote to memory of 1528 1968 EXCEL.EXE 31 PID 1968 wrote to memory of 1044 1968 EXCEL.EXE 32 PID 1968 wrote to memory of 1044 1968 EXCEL.EXE 32 PID 1968 wrote to memory of 1044 1968 EXCEL.EXE 32 PID 1968 wrote to memory of 1044 1968 EXCEL.EXE 32 PID 1968 wrote to memory of 1044 1968 EXCEL.EXE 32 PID 1968 wrote to memory of 1044 1968 EXCEL.EXE 32 PID 1968 wrote to memory of 1044 1968 EXCEL.EXE 32 PID 1968 wrote to memory of 1328 1968 EXCEL.EXE 33 PID 1968 wrote to memory of 1328 1968 EXCEL.EXE 33 PID 1968 wrote to memory of 1328 1968 EXCEL.EXE 33 PID 1968 wrote to memory of 1328 1968 EXCEL.EXE 33 PID 1968 wrote to memory of 1328 1968 EXCEL.EXE 33 PID 1968 wrote to memory of 1328 1968 EXCEL.EXE 33 PID 1968 wrote to memory of 1328 1968 EXCEL.EXE 33
Processes
-
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\71923841627-04012021.xlsm1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1968 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\Hodas.vyur,PluginInit2⤵
- Process spawned unexpected child process
PID:1528
-
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\Hodas.vyur1,PluginInit2⤵
- Process spawned unexpected child process
PID:1044
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\Hodas.vyur2,PluginInit2⤵
- Process spawned unexpected child process
PID:1328
-