Analysis
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max time kernel
33s -
max time network
31s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
12-03-2021 18:07
Behavioral task
behavioral1
Sample
CompensationClaim_1729801533_03122021.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
CompensationClaim_1729801533_03122021.xls
Resource
win10v20201028
General
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Target
CompensationClaim_1729801533_03122021.xls
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Size
280KB
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MD5
21ecbc98f12c0adf8d48d35ace2deb89
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SHA1
59c762ee1205a475622c6994d912240005909dcb
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SHA256
2fc9fd3ba89f4bc0b34597521c727dcfcb1106c18791c1ec25de7ba55a6dd317
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SHA512
71c20443aac41a27ed344f693dd697cd075650d3444ce833287006b8cd27ea078bbab441c0e95934117c17709e9a81a3f29f35759508188590d7fc2a0122d87b
Malware Config
Extracted
http://185.82.219.161/44267.7945251157.dat
http://45.140.146.26/44267.7945251157.dat
http://188.127.227.167/44267.7945251157.dat
http://44267.7945251157.dat
Signatures
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Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exerundll32.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 1492 1648 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1072 1648 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 272 1648 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 (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 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 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\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\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 Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1648 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1648 EXCEL.EXE 1648 EXCEL.EXE 1648 EXCEL.EXE -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1648 wrote to memory of 1492 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 1492 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 1492 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 1492 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 1492 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 1492 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 1492 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 1072 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 1072 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 1072 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 1072 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 1072 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 1072 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 1072 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 272 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 272 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 272 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 272 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 272 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 272 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 272 1648 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\CompensationClaim_1729801533_03122021.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1648 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\Runtim.broks,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1492 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\Runtim.broks1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1072 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\Runtim.broks2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:272
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/272-10-0x0000000000000000-mapping.dmp
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memory/1072-8-0x0000000000000000-mapping.dmp
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memory/1492-6-0x0000000000000000-mapping.dmp
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memory/1492-7-0x0000000074D11000-0x0000000074D13000-memory.dmpFilesize
8KB
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memory/1648-2-0x000000002FA71000-0x000000002FA74000-memory.dmpFilesize
12KB
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memory/1648-3-0x0000000070E31000-0x0000000070E33000-memory.dmpFilesize
8KB
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memory/1648-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1648-12-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1648-13-0x0000000001F70000-0x0000000001F71000-memory.dmpFilesize
4KB
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memory/1980-5-0x000007FEF6F80000-0x000007FEF71FA000-memory.dmpFilesize
2.5MB