Analysis
- max time kernel
70s - max time network
70s - platform
windows7_x64 - resource
win7v20201028 - submitted
31/03/2021, 16:29
Static task
static1
Behavioral task
behavioral1
Sample
document-2049399969.xlsm
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-2049399969.xlsm
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
- Target document-2049399969.xlsm
- Size 106KB
- Sample210331-76p854w3ja
- SHA256 fd8f2cb4ca59cf1083aea4e4491006090f8e617e23689c3e172064eabaa9b241
- MD5 3f81ecfc68d374d20e77255ebdbf215c
- SHA1 abd72dce25ade6705d5e3464ed4f387f11d2ffdc
- SHA512 8824c9845314eecf28c2cbcbf4c4dade96f35fce6a1dae613a4dcc1406fddd6c20ed461a54eea8b7dbf6e8c924baa511711f105c548bda6c3b310a4700ab41d8
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Language
-
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 848 1740 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1012 1740 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1020 1740 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1708 1740 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 868 1740 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\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\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\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 (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\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\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1740 EXCEL.EXE - Suspicious use of SetWindowsHookEx 15 IoCs
pid Process 1740 EXCEL.EXE 1740 EXCEL.EXE 1740 EXCEL.EXE 1740 EXCEL.EXE 1740 EXCEL.EXE 1740 EXCEL.EXE 1740 EXCEL.EXE 1740 EXCEL.EXE 1740 EXCEL.EXE 1740 EXCEL.EXE 1740 EXCEL.EXE 1740 EXCEL.EXE 1740 EXCEL.EXE 1740 EXCEL.EXE 1740 EXCEL.EXE - Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1740 wrote to memory of 848 1740 EXCEL.EXE 31 PID 1740 wrote to memory of 848 1740 EXCEL.EXE 31 PID 1740 wrote to memory of 848 1740 EXCEL.EXE 31 PID 1740 wrote to memory of 848 1740 EXCEL.EXE 31 PID 1740 wrote to memory of 848 1740 EXCEL.EXE 31 PID 1740 wrote to memory of 848 1740 EXCEL.EXE 31 PID 1740 wrote to memory of 848 1740 EXCEL.EXE 31 PID 1740 wrote to memory of 1012 1740 EXCEL.EXE 32 PID 1740 wrote to memory of 1012 1740 EXCEL.EXE 32 PID 1740 wrote to memory of 1012 1740 EXCEL.EXE 32 PID 1740 wrote to memory of 1012 1740 EXCEL.EXE 32 PID 1740 wrote to memory of 1012 1740 EXCEL.EXE 32 PID 1740 wrote to memory of 1012 1740 EXCEL.EXE 32 PID 1740 wrote to memory of 1012 1740 EXCEL.EXE 32 PID 1740 wrote to memory of 1020 1740 EXCEL.EXE 33 PID 1740 wrote to memory of 1020 1740 EXCEL.EXE 33 PID 1740 wrote to memory of 1020 1740 EXCEL.EXE 33 PID 1740 wrote to memory of 1020 1740 EXCEL.EXE 33 PID 1740 wrote to memory of 1020 1740 EXCEL.EXE 33 PID 1740 wrote to memory of 1020 1740 EXCEL.EXE 33 PID 1740 wrote to memory of 1020 1740 EXCEL.EXE 33 PID 1740 wrote to memory of 1708 1740 EXCEL.EXE 34 PID 1740 wrote to memory of 1708 1740 EXCEL.EXE 34 PID 1740 wrote to memory of 1708 1740 EXCEL.EXE 34 PID 1740 wrote to memory of 1708 1740 EXCEL.EXE 34 PID 1740 wrote to memory of 1708 1740 EXCEL.EXE 34 PID 1740 wrote to memory of 1708 1740 EXCEL.EXE 34 PID 1740 wrote to memory of 1708 1740 EXCEL.EXE 34 PID 1740 wrote to memory of 868 1740 EXCEL.EXE 35 PID 1740 wrote to memory of 868 1740 EXCEL.EXE 35 PID 1740 wrote to memory of 868 1740 EXCEL.EXE 35 PID 1740 wrote to memory of 868 1740 EXCEL.EXE 35 PID 1740 wrote to memory of 868 1740 EXCEL.EXE 35 PID 1740 wrote to memory of 868 1740 EXCEL.EXE 35 PID 1740 wrote to memory of 868 1740 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\document-2049399969.xlsm1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:848
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1012
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1020
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1708
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:868
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