Analysis
- max time kernel
74s - max time network
80s - platform
windows7_x64 - resource
win7v20201028 - submitted
01/04/2021, 16:32
Static task
static1
Behavioral task
behavioral1
Sample
1436.xlsm
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
1436.xlsm
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
- Target 1436.xlsm
- Size 84KB
- Sample210401-5bv5d2ga3e
- SHA256 2300cdb66f994f521399157b534c8564f9fe750fd48a8226749071a651ac826c
- MD5 0aadab8bc776b95c208e47b03a023c8c
- SHA1 05a32aef4f4723fe8dcd43522f5d8cf0ce66be80
- SHA512 4a63b6a404b663c85dde5ba96e3935b78cf3f7c62107c5cc3d2f8774629219818c8f2556d3ebef404c03d4d7f80a3a9e60952ef43339b132b8a7fb94c3989a9a
- 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://vts.us.com/ds/0104.gif
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xlm40.dropper
https://mundotecnologiasolar.com/ds/0104.gif
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xlm40.dropper
https://comosairdoburaco.com.br/ds/0104.gif
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xlm40.dropper
https://accesslinksgroup.com/ds/0104.gif
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xlm40.dropper
https://ponchokhana.com/ds/0104.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 1472 1056 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1400 1056 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 660 1056 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 948 1056 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1364 1056 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 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 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 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 - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1056 EXCEL.EXE - Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 1056 EXCEL.EXE 1056 EXCEL.EXE 1056 EXCEL.EXE 1056 EXCEL.EXE 1056 EXCEL.EXE 1056 EXCEL.EXE 1056 EXCEL.EXE 1056 EXCEL.EXE 1056 EXCEL.EXE 1056 EXCEL.EXE 1056 EXCEL.EXE 1056 EXCEL.EXE 1056 EXCEL.EXE - Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1056 wrote to memory of 1472 1056 EXCEL.EXE 31 PID 1056 wrote to memory of 1472 1056 EXCEL.EXE 31 PID 1056 wrote to memory of 1472 1056 EXCEL.EXE 31 PID 1056 wrote to memory of 1472 1056 EXCEL.EXE 31 PID 1056 wrote to memory of 1472 1056 EXCEL.EXE 31 PID 1056 wrote to memory of 1472 1056 EXCEL.EXE 31 PID 1056 wrote to memory of 1472 1056 EXCEL.EXE 31 PID 1056 wrote to memory of 1400 1056 EXCEL.EXE 32 PID 1056 wrote to memory of 1400 1056 EXCEL.EXE 32 PID 1056 wrote to memory of 1400 1056 EXCEL.EXE 32 PID 1056 wrote to memory of 1400 1056 EXCEL.EXE 32 PID 1056 wrote to memory of 1400 1056 EXCEL.EXE 32 PID 1056 wrote to memory of 1400 1056 EXCEL.EXE 32 PID 1056 wrote to memory of 1400 1056 EXCEL.EXE 32 PID 1056 wrote to memory of 660 1056 EXCEL.EXE 33 PID 1056 wrote to memory of 660 1056 EXCEL.EXE 33 PID 1056 wrote to memory of 660 1056 EXCEL.EXE 33 PID 1056 wrote to memory of 660 1056 EXCEL.EXE 33 PID 1056 wrote to memory of 660 1056 EXCEL.EXE 33 PID 1056 wrote to memory of 660 1056 EXCEL.EXE 33 PID 1056 wrote to memory of 660 1056 EXCEL.EXE 33 PID 1056 wrote to memory of 948 1056 EXCEL.EXE 34 PID 1056 wrote to memory of 948 1056 EXCEL.EXE 34 PID 1056 wrote to memory of 948 1056 EXCEL.EXE 34 PID 1056 wrote to memory of 948 1056 EXCEL.EXE 34 PID 1056 wrote to memory of 948 1056 EXCEL.EXE 34 PID 1056 wrote to memory of 948 1056 EXCEL.EXE 34 PID 1056 wrote to memory of 948 1056 EXCEL.EXE 34 PID 1056 wrote to memory of 1364 1056 EXCEL.EXE 35 PID 1056 wrote to memory of 1364 1056 EXCEL.EXE 35 PID 1056 wrote to memory of 1364 1056 EXCEL.EXE 35 PID 1056 wrote to memory of 1364 1056 EXCEL.EXE 35 PID 1056 wrote to memory of 1364 1056 EXCEL.EXE 35 PID 1056 wrote to memory of 1364 1056 EXCEL.EXE 35 PID 1056 wrote to memory of 1364 1056 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\1436.xlsm1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1056 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1472
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1400
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:660
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:948
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1364
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