Analysis
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max time kernel
62s -
max time network
11s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
11-03-2021 12:12
Behavioral task
behavioral1
Sample
document-630335192.xls
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-630335192.xls
Resource
win10v20201028
0 signatures
0 seconds
General
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Target
document-630335192.xls
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Size
39KB
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MD5
7f32e36c3a4ab9b3c2cb70cdd7232a97
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SHA1
19a8b5279606ef888421ed4482f4222a184b6313
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SHA256
64d8b1c5f101aca6c0f3e6b31e12bc2acef52ae9ab490b07ed5e228ed43aefd0
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SHA512
98ee0d78a0ed8ba81a5b9bce1a4745d99d9351ddc3eee6be76f5f3386cffe07bbb30a6e65a1e7cad6b5fdc47af21fd7a88fe4bbcae0e7c0667cfd3d65f63f002
Score
10/10
Malware Config
Extracted
Language
xlm4.0
Source
URLs
xlm40.dropper
http://dzw10jpcgj03fckc.com/inda.xls
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exedescription pid pid_target process target process Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1492 1724 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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1724 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 7 IoCs
Processes:
EXCEL.EXEpid process 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE 1724 EXCEL.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1724 wrote to memory of 1492 1724 EXCEL.EXE rundll32.exe PID 1724 wrote to memory of 1492 1724 EXCEL.EXE rundll32.exe PID 1724 wrote to memory of 1492 1724 EXCEL.EXE rundll32.exe PID 1724 wrote to memory of 1492 1724 EXCEL.EXE rundll32.exe PID 1724 wrote to memory of 1492 1724 EXCEL.EXE rundll32.exe PID 1724 wrote to memory of 1492 1724 EXCEL.EXE rundll32.exe PID 1724 wrote to memory of 1492 1724 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\document-630335192.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 ..\fkruf.djr,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/1492-6-0x0000000000000000-mapping.dmp
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memory/1492-7-0x00000000761E1000-0x00000000761E3000-memory.dmpFilesize
8KB
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memory/1724-2-0x000000002F121000-0x000000002F124000-memory.dmpFilesize
12KB
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memory/1724-3-0x0000000071C61000-0x0000000071C63000-memory.dmpFilesize
8KB
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memory/1724-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1972-5-0x000007FEF7D90000-0x000007FEF800A000-memory.dmpFilesize
2.5MB