Analysis
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max time kernel
71s -
max time network
14s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
15-03-2021 15:12
Behavioral task
behavioral1
Sample
document-391833622.xls
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-391833622.xls
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
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Target
document-391833622.xls
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Size
139KB
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MD5
9bd88ed66fcbdcd65cfbc06d32e418a6
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SHA1
06ba7f00d14742b415cc4cae4ab67e7a131ffa27
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SHA256
6b9b28b35b07fdeedc09d065727dc72da3c8b3f6455df35034822edd1b4c05e8
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SHA512
084cc4b16c5b41218893cd8a499058bdc738a105bf795564af8f0c1f5bfee01d6587db38c7f8aed7bc61e9d8de97639e5946bef4ce0a9d26dd1887990e8936f5
Score
10/10
Malware Config
Extracted
Language
xlm4.0
Source
URLs
xlm40.dropper
http://bpxe15jijmh03ubiwhh.xyz/w.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 1728 1096 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 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 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\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 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\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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1096 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1096 EXCEL.EXE 1096 EXCEL.EXE 1096 EXCEL.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1096 wrote to memory of 1728 1096 EXCEL.EXE rundll32.exe PID 1096 wrote to memory of 1728 1096 EXCEL.EXE rundll32.exe PID 1096 wrote to memory of 1728 1096 EXCEL.EXE rundll32.exe PID 1096 wrote to memory of 1728 1096 EXCEL.EXE rundll32.exe PID 1096 wrote to memory of 1728 1096 EXCEL.EXE rundll32.exe PID 1096 wrote to memory of 1728 1096 EXCEL.EXE rundll32.exe PID 1096 wrote to memory of 1728 1096 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-391833622.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/1096-2-0x000000002F621000-0x000000002F624000-memory.dmpFilesize
12KB
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memory/1096-3-0x0000000071461000-0x0000000071463000-memory.dmpFilesize
8KB
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memory/1096-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1728-6-0x0000000000000000-mapping.dmp
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memory/1728-7-0x0000000075301000-0x0000000075303000-memory.dmpFilesize
8KB
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memory/1980-5-0x000007FEF7500000-0x000007FEF777A000-memory.dmpFilesize
2.5MB