Analysis
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max time kernel
72s -
max time network
20s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
12-03-2021 20:56
Behavioral task
behavioral1
Sample
document-1466263755.xls
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-1466263755.xls
Resource
win10v20201028
0 signatures
0 seconds
General
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Target
document-1466263755.xls
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Size
138KB
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MD5
6c87d721511475212b2aeda5636e34e8
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SHA1
08c219a973dbc94e64a4587c7881a8fb60e6ac54
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SHA256
dca218e59e43481f87fbd14b198d42e4617a8b67a4d9e1baf6d9f46786c8cb62
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SHA512
8066761dd396dced3eb57d140f13f03050872e9be313fa84926f5b77ff3d2e1de02c40805e8de31b557c35406fec5c52c36411b0d7ee228dd6862f862606dd2d
Score
10/10
Malware Config
Extracted
Language
xlm4.0
Source
URLs
xlm40.dropper
http://bqx12lnjk03rrdio.xyz/i.gif
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 1100 1616 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-1-5-21-293278959-2699126792-324916226-1000\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 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 (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 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 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1616 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1616 EXCEL.EXE 1616 EXCEL.EXE 1616 EXCEL.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1616 wrote to memory of 1100 1616 EXCEL.EXE rundll32.exe PID 1616 wrote to memory of 1100 1616 EXCEL.EXE rundll32.exe PID 1616 wrote to memory of 1100 1616 EXCEL.EXE rundll32.exe PID 1616 wrote to memory of 1100 1616 EXCEL.EXE rundll32.exe PID 1616 wrote to memory of 1100 1616 EXCEL.EXE rundll32.exe PID 1616 wrote to memory of 1100 1616 EXCEL.EXE rundll32.exe PID 1616 wrote to memory of 1100 1616 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-1466263755.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 ..\zfbfg.ere,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/368-5-0x000007FEF7BD0000-0x000007FEF7E4A000-memory.dmpFilesize
2.5MB
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memory/1100-6-0x0000000000000000-mapping.dmp
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memory/1100-7-0x00000000765A1000-0x00000000765A3000-memory.dmpFilesize
8KB
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memory/1616-2-0x000000002F9B1000-0x000000002F9B4000-memory.dmpFilesize
12KB
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memory/1616-3-0x0000000071A81000-0x0000000071A83000-memory.dmpFilesize
8KB
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memory/1616-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB