Analysis
- max time kernel
71s - max time network
73s - platform
windows7_x64 - resource
win7v20201028 - submitted
31/03/2021, 17:32
Static task
static1
Behavioral task
behavioral1
Sample
document-180931699.xlsm
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-180931699.xlsm
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
- Target document-180931699.xlsm
- Size 106KB
- Sample210331-xrklbrflm2
- SHA256 4603695abccc36c0d02012cc5c2b5eb2bd78e1b4258776b9b8ef522fb86507a6
- MD5 9834cf916a4d9bc2eb8bb3e301c8dd38
- SHA1 931b8ff51cbbf98ab96ce43223fe7c4b4d88ad60
- SHA512 5a7e321e85a9ba10fa74a6bb30679c0e61b27bb054517b8bda13159b2833d07b662e72a64d3336ec4c6aa38c9d440b1e3a5f7b1817ab2a44ed199f15ce4037f4
- 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 1512 1656 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1056 1656 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1584 1656 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 912 1656 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 984 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 Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt 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 (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\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 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 (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 1512 1656 EXCEL.EXE 31 PID 1656 wrote to memory of 1512 1656 EXCEL.EXE 31 PID 1656 wrote to memory of 1512 1656 EXCEL.EXE 31 PID 1656 wrote to memory of 1512 1656 EXCEL.EXE 31 PID 1656 wrote to memory of 1512 1656 EXCEL.EXE 31 PID 1656 wrote to memory of 1512 1656 EXCEL.EXE 31 PID 1656 wrote to memory of 1512 1656 EXCEL.EXE 31 PID 1656 wrote to memory of 1056 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 1056 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 1056 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 1056 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 1056 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 1056 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 1056 1656 EXCEL.EXE 32 PID 1656 wrote to memory of 1584 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 1584 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 1584 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 1584 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 1584 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 1584 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 1584 1656 EXCEL.EXE 33 PID 1656 wrote to memory of 912 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 912 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 912 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 912 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 912 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 912 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 912 1656 EXCEL.EXE 34 PID 1656 wrote to memory of 984 1656 EXCEL.EXE 35 PID 1656 wrote to memory of 984 1656 EXCEL.EXE 35 PID 1656 wrote to memory of 984 1656 EXCEL.EXE 35 PID 1656 wrote to memory of 984 1656 EXCEL.EXE 35 PID 1656 wrote to memory of 984 1656 EXCEL.EXE 35 PID 1656 wrote to memory of 984 1656 EXCEL.EXE 35 PID 1656 wrote to memory of 984 1656 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-180931699.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:1512
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1056
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1584
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:912
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:984
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