Analysis
- max time kernel
150s - max time network
151s - platform
windows7_x64 - resource
win7v20201028 - submitted
31/03/2021, 18:06
Static task
static1
Behavioral task
behavioral1
Sample
document-669854873.xlsm
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-669854873.xlsm
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
- Target document-669854873.xlsm
- Size 106KB
- Sample210331-krhs43dk9e
- SHA256 8aa4d7b55ab89d01dbcf2c54d80624fd9c41983a7675af9ea3a8025889fc0a1c
- MD5 b49d05710b388de964a0816029c40bf4
- SHA1 5203e7e04b987573b6aafa36a0b54b8527299ea0
- SHA512 8f379191f65bc0cf25a46f0f9c7f03eab31afed85eb6eabd07584be004f4f52977402ea51639e2ba221d8c1a09d1e261138ac624365b3b63c794f609767ceb02
- 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 548 1596 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 288 1596 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 792 1596 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 972 1596 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1444 1596 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\Toolbar\ShowDiscussionButton = "Yes" 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 (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 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 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\Toolbar EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt 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 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 1596 EXCEL.EXE - Suspicious use of SetWindowsHookEx 15 IoCs
pid Process 1596 EXCEL.EXE 1596 EXCEL.EXE 1596 EXCEL.EXE 1596 EXCEL.EXE 1596 EXCEL.EXE 1596 EXCEL.EXE 1596 EXCEL.EXE 1596 EXCEL.EXE 1596 EXCEL.EXE 1596 EXCEL.EXE 1596 EXCEL.EXE 1596 EXCEL.EXE 1596 EXCEL.EXE 1596 EXCEL.EXE 1596 EXCEL.EXE - Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1596 wrote to memory of 548 1596 EXCEL.EXE 31 PID 1596 wrote to memory of 548 1596 EXCEL.EXE 31 PID 1596 wrote to memory of 548 1596 EXCEL.EXE 31 PID 1596 wrote to memory of 548 1596 EXCEL.EXE 31 PID 1596 wrote to memory of 548 1596 EXCEL.EXE 31 PID 1596 wrote to memory of 548 1596 EXCEL.EXE 31 PID 1596 wrote to memory of 548 1596 EXCEL.EXE 31 PID 1596 wrote to memory of 288 1596 EXCEL.EXE 32 PID 1596 wrote to memory of 288 1596 EXCEL.EXE 32 PID 1596 wrote to memory of 288 1596 EXCEL.EXE 32 PID 1596 wrote to memory of 288 1596 EXCEL.EXE 32 PID 1596 wrote to memory of 288 1596 EXCEL.EXE 32 PID 1596 wrote to memory of 288 1596 EXCEL.EXE 32 PID 1596 wrote to memory of 288 1596 EXCEL.EXE 32 PID 1596 wrote to memory of 792 1596 EXCEL.EXE 33 PID 1596 wrote to memory of 792 1596 EXCEL.EXE 33 PID 1596 wrote to memory of 792 1596 EXCEL.EXE 33 PID 1596 wrote to memory of 792 1596 EXCEL.EXE 33 PID 1596 wrote to memory of 792 1596 EXCEL.EXE 33 PID 1596 wrote to memory of 792 1596 EXCEL.EXE 33 PID 1596 wrote to memory of 792 1596 EXCEL.EXE 33 PID 1596 wrote to memory of 972 1596 EXCEL.EXE 34 PID 1596 wrote to memory of 972 1596 EXCEL.EXE 34 PID 1596 wrote to memory of 972 1596 EXCEL.EXE 34 PID 1596 wrote to memory of 972 1596 EXCEL.EXE 34 PID 1596 wrote to memory of 972 1596 EXCEL.EXE 34 PID 1596 wrote to memory of 972 1596 EXCEL.EXE 34 PID 1596 wrote to memory of 972 1596 EXCEL.EXE 34 PID 1596 wrote to memory of 1444 1596 EXCEL.EXE 35 PID 1596 wrote to memory of 1444 1596 EXCEL.EXE 35 PID 1596 wrote to memory of 1444 1596 EXCEL.EXE 35 PID 1596 wrote to memory of 1444 1596 EXCEL.EXE 35 PID 1596 wrote to memory of 1444 1596 EXCEL.EXE 35 PID 1596 wrote to memory of 1444 1596 EXCEL.EXE 35 PID 1596 wrote to memory of 1444 1596 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-669854873.xlsm1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1596 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:548
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:288
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:792
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:972
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1444
-