Analysis
- max time kernel
71s - max time network
72s - platform
windows7_x64 - resource
win7v20201028 - submitted
31/03/2021, 16:35
Static task
static1
Behavioral task
behavioral1
Sample
document-2133794341.xlsm
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-2133794341.xlsm
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
- Target document-2133794341.xlsm
- Size 106KB
- Sample210331-dmt8c4mn6j
- SHA256 c59491da116f12ac828e1b4037aff31bfeaa1e6e7b7709fc6902bbcc3a3755b9
- MD5 3713a8b521c62c091eab171f0cb10d8f
- SHA1 2792c3d21053ea57121811a96bf412cc4fee059c
- SHA512 1c4dbbe051208cc0eff04fed7c3210e161d413d05414aceb2b040e8c547274ecf0fc8e16891b4103a15b9fd751943ee8274c8e637e5a84ee20b7736459d90466
- 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 1880 1340 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 584 1340 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1104 1340 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1248 1340 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1796 1340 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 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 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 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 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 1340 EXCEL.EXE - Suspicious use of SetWindowsHookEx 15 IoCs
pid Process 1340 EXCEL.EXE 1340 EXCEL.EXE 1340 EXCEL.EXE 1340 EXCEL.EXE 1340 EXCEL.EXE 1340 EXCEL.EXE 1340 EXCEL.EXE 1340 EXCEL.EXE 1340 EXCEL.EXE 1340 EXCEL.EXE 1340 EXCEL.EXE 1340 EXCEL.EXE 1340 EXCEL.EXE 1340 EXCEL.EXE 1340 EXCEL.EXE - Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1340 wrote to memory of 1880 1340 EXCEL.EXE 31 PID 1340 wrote to memory of 1880 1340 EXCEL.EXE 31 PID 1340 wrote to memory of 1880 1340 EXCEL.EXE 31 PID 1340 wrote to memory of 1880 1340 EXCEL.EXE 31 PID 1340 wrote to memory of 1880 1340 EXCEL.EXE 31 PID 1340 wrote to memory of 1880 1340 EXCEL.EXE 31 PID 1340 wrote to memory of 1880 1340 EXCEL.EXE 31 PID 1340 wrote to memory of 584 1340 EXCEL.EXE 32 PID 1340 wrote to memory of 584 1340 EXCEL.EXE 32 PID 1340 wrote to memory of 584 1340 EXCEL.EXE 32 PID 1340 wrote to memory of 584 1340 EXCEL.EXE 32 PID 1340 wrote to memory of 584 1340 EXCEL.EXE 32 PID 1340 wrote to memory of 584 1340 EXCEL.EXE 32 PID 1340 wrote to memory of 584 1340 EXCEL.EXE 32 PID 1340 wrote to memory of 1104 1340 EXCEL.EXE 33 PID 1340 wrote to memory of 1104 1340 EXCEL.EXE 33 PID 1340 wrote to memory of 1104 1340 EXCEL.EXE 33 PID 1340 wrote to memory of 1104 1340 EXCEL.EXE 33 PID 1340 wrote to memory of 1104 1340 EXCEL.EXE 33 PID 1340 wrote to memory of 1104 1340 EXCEL.EXE 33 PID 1340 wrote to memory of 1104 1340 EXCEL.EXE 33 PID 1340 wrote to memory of 1248 1340 EXCEL.EXE 34 PID 1340 wrote to memory of 1248 1340 EXCEL.EXE 34 PID 1340 wrote to memory of 1248 1340 EXCEL.EXE 34 PID 1340 wrote to memory of 1248 1340 EXCEL.EXE 34 PID 1340 wrote to memory of 1248 1340 EXCEL.EXE 34 PID 1340 wrote to memory of 1248 1340 EXCEL.EXE 34 PID 1340 wrote to memory of 1248 1340 EXCEL.EXE 34 PID 1340 wrote to memory of 1796 1340 EXCEL.EXE 36 PID 1340 wrote to memory of 1796 1340 EXCEL.EXE 36 PID 1340 wrote to memory of 1796 1340 EXCEL.EXE 36 PID 1340 wrote to memory of 1796 1340 EXCEL.EXE 36 PID 1340 wrote to memory of 1796 1340 EXCEL.EXE 36 PID 1340 wrote to memory of 1796 1340 EXCEL.EXE 36 PID 1340 wrote to memory of 1796 1340 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-2133794341.xlsm1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1340 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1880
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:584
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1104
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1248
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1796
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