Analysis
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max time kernel
151s -
max time network
15s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
12-05-2021 10:02
Static task
static1
Behavioral task
behavioral1
Sample
46747509_by_Libranalysis.xls
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
General
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Target
46747509_by_Libranalysis.xls
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Size
367KB
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MD5
46747509aca01f63274d3edfeddb787b
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SHA1
8bcb09a42a62453b9437915442ce981896cb4de7
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SHA256
00da3dfab496ea65873d53636db189ed7bd46f502386cb014876a75d71d6869b
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SHA512
490f689c0b47303a7fc96756347df946a953288dec82250503d5057cb35f1173f59b6125943dec8f9590fd3e31b9528dfeea0b258f1eedaeba52358e27702c7b
Score
10/10
Malware Config
Extracted
Language
xlm4.0
Source
URLs
xlm40.dropper
https://signifysystem.com/ceg7AX7oN0o/ue.html
xlm40.dropper
https://fcventasyservicios.cl/k60jvjcT/ue.html
Signatures
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Process spawned unexpected child process 2 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exerundll32.exedescription pid pid_target process target process Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1784 280 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 276 280 rundll32.exe EXCEL.EXE -
Enumerates system info in registry 2 TTPs 1 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE -
Processes:
EXCEL.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\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
Processes:
EXCEL.EXEpid process 280 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 280 EXCEL.EXE 280 EXCEL.EXE 280 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 280 wrote to memory of 1784 280 EXCEL.EXE rundll32.exe PID 280 wrote to memory of 1784 280 EXCEL.EXE rundll32.exe PID 280 wrote to memory of 1784 280 EXCEL.EXE rundll32.exe PID 280 wrote to memory of 1784 280 EXCEL.EXE rundll32.exe PID 280 wrote to memory of 1784 280 EXCEL.EXE rundll32.exe PID 280 wrote to memory of 1784 280 EXCEL.EXE rundll32.exe PID 280 wrote to memory of 1784 280 EXCEL.EXE rundll32.exe PID 280 wrote to memory of 276 280 EXCEL.EXE rundll32.exe PID 280 wrote to memory of 276 280 EXCEL.EXE rundll32.exe PID 280 wrote to memory of 276 280 EXCEL.EXE rundll32.exe PID 280 wrote to memory of 276 280 EXCEL.EXE rundll32.exe PID 280 wrote to memory of 276 280 EXCEL.EXE rundll32.exe PID 280 wrote to memory of 276 280 EXCEL.EXE rundll32.exe PID 280 wrote to memory of 276 280 EXCEL.EXE rundll32.exe
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\46747509_by_Libranalysis.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\ritofm.cvm,DllRegisterServer2⤵
- Process spawned unexpected child process
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\ritofm.cvm1,DllRegisterServer2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/276-65-0x0000000000000000-mapping.dmp
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memory/280-60-0x000000002F431000-0x000000002F434000-memory.dmpFilesize
12KB
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memory/280-61-0x0000000070D71000-0x0000000070D73000-memory.dmpFilesize
8KB
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memory/280-62-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1784-63-0x0000000000000000-mapping.dmp
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memory/1784-64-0x0000000075041000-0x0000000075043000-memory.dmpFilesize
8KB