Analysis
- max time kernel
73s - max time network
126s - platform
windows7_x64 - resource
win7v20201028 - submitted
01/04/2021, 18:15
Static task
static1
Behavioral task
behavioral1
Sample
7275060031-04012021.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
7275060031-04012021.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target 7275060031-04012021.xlsm
- Size 173KB
- Sample210401-q9a9vbqar2
- SHA256 d2f5c3ad81f828b3ff314fcdceb8d7b84cb71db837573bcb4db9bf0380f0d4ad
- MD5 31194966e105c3508442953da1d5f554
- SHA1 3e838a274e891cfc1ef34dfa0a5cb3ebca6192b0
- SHA512 00384695f4e3abebf5d631e36475d39b090e27c16e8c59cc2619f487f5c653bb891d85ba8c2542b8978cd3070d75cb54c3b6109395aa47f268421846ea87eb3f
- 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 1484 1812 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1852 1812 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1908 1812 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 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 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 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 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\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 (int) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" 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
pid Process 1812 EXCEL.EXE - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1812 EXCEL.EXE 1812 EXCEL.EXE 1812 EXCEL.EXE - Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1812 wrote to memory of 1484 1812 EXCEL.EXE 31 PID 1812 wrote to memory of 1484 1812 EXCEL.EXE 31 PID 1812 wrote to memory of 1484 1812 EXCEL.EXE 31 PID 1812 wrote to memory of 1484 1812 EXCEL.EXE 31 PID 1812 wrote to memory of 1484 1812 EXCEL.EXE 31 PID 1812 wrote to memory of 1484 1812 EXCEL.EXE 31 PID 1812 wrote to memory of 1484 1812 EXCEL.EXE 31 PID 1812 wrote to memory of 1852 1812 EXCEL.EXE 32 PID 1812 wrote to memory of 1852 1812 EXCEL.EXE 32 PID 1812 wrote to memory of 1852 1812 EXCEL.EXE 32 PID 1812 wrote to memory of 1852 1812 EXCEL.EXE 32 PID 1812 wrote to memory of 1852 1812 EXCEL.EXE 32 PID 1812 wrote to memory of 1852 1812 EXCEL.EXE 32 PID 1812 wrote to memory of 1852 1812 EXCEL.EXE 32 PID 1812 wrote to memory of 1908 1812 EXCEL.EXE 33 PID 1812 wrote to memory of 1908 1812 EXCEL.EXE 33 PID 1812 wrote to memory of 1908 1812 EXCEL.EXE 33 PID 1812 wrote to memory of 1908 1812 EXCEL.EXE 33 PID 1812 wrote to memory of 1908 1812 EXCEL.EXE 33 PID 1812 wrote to memory of 1908 1812 EXCEL.EXE 33 PID 1812 wrote to memory of 1908 1812 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\7275060031-04012021.xlsm1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1812 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\Hodas.vyur,PluginInit2⤵
- Process spawned unexpected child process
PID:1484
-
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\Hodas.vyur1,PluginInit2⤵
- Process spawned unexpected child process
PID:1852
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\Hodas.vyur2,PluginInit2⤵
- Process spawned unexpected child process
PID:1908
-