Analysis
- max time kernel
73s - max time network
83s - platform
windows7_x64 - resource
win7v20201028 - submitted
31/03/2021, 18:15
Static task
static1
Behavioral task
behavioral1
Sample
document-586537513.xlsm
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-586537513.xlsm
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
- Target document-586537513.xlsm
- Size 106KB
- Sample210331-9d6fsf9zts
- SHA256 1768f700782051f2a73acded86ef380f500247ff2a154a4b9756f5ef9488b8e2
- MD5 5ec10eb5d9919973ef66145e9a54e44f
- SHA1 3626cc4c22ff15228d6a072b5184d8ce10c4c918
- SHA512 61cab8136a9037b95e304dd7177556138ece49857fc4290bcd3b43048627ab0938b7cd2913422eee535a020a649228ff48b0a57f71672d0eecd7c508adbf8cc5
- 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://ieclb.com.br/ds/3103.gif
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xlm40.dropper
https://maharaniworld.com/ds/3103.gif
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xlm40.dropper
https://aycconsultoriaempresarial.com/ds/3103.gif
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xlm40.dropper
https://sgb.ac.ke/ds/3103.gif
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xlm40.dropper
https://hashmati.com/ds/3103.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 1924 1656 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 864 1656 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 308 1656 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1920 1656 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1840 1656 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-1-5-21-293278959-2699126792-324916226-1000\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 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 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 1656 EXCEL.EXE - Suspicious use of SetWindowsHookEx 15 IoCs
pid Process 1656 EXCEL.EXE 1656 EXCEL.EXE 1656 EXCEL.EXE 1656 EXCEL.EXE 1656 EXCEL.EXE 1656 EXCEL.EXE 1656 EXCEL.EXE 1656 EXCEL.EXE 1656 EXCEL.EXE 1656 EXCEL.EXE 1656 EXCEL.EXE 1656 EXCEL.EXE 1656 EXCEL.EXE 1656 EXCEL.EXE 1656 EXCEL.EXE - Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1656 wrote to memory of 1924 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 1924 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 1924 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 1924 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 1924 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 1924 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 1924 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 864 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 864 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 864 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 864 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 864 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 864 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 864 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 308 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 308 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 308 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 308 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 308 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 308 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 308 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 1920 1656 EXCEL.EXE 35 PID 1656 wrote to memory of 1920 1656 EXCEL.EXE 35 PID 1656 wrote to memory of 1920 1656 EXCEL.EXE 35 PID 1656 wrote to memory of 1920 1656 EXCEL.EXE 35 PID 1656 wrote to memory of 1920 1656 EXCEL.EXE 35 PID 1656 wrote to memory of 1920 1656 EXCEL.EXE 35 PID 1656 wrote to memory of 1920 1656 EXCEL.EXE 35 PID 1656 wrote to memory of 1840 1656 EXCEL.EXE 36 PID 1656 wrote to memory of 1840 1656 EXCEL.EXE 36 PID 1656 wrote to memory of 1840 1656 EXCEL.EXE 36 PID 1656 wrote to memory of 1840 1656 EXCEL.EXE 36 PID 1656 wrote to memory of 1840 1656 EXCEL.EXE 36 PID 1656 wrote to memory of 1840 1656 EXCEL.EXE 36 PID 1656 wrote to memory of 1840 1656 EXCEL.EXE 36
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\document-586537513.xlsm1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1656 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1924
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:864
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:308
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1920
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1840
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