Analysis
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max time kernel
64s -
max time network
125s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
12-03-2021 20:06
Behavioral task
behavioral1
Sample
CompensationClaim_1766595879_03122021.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
CompensationClaim_1766595879_03122021.xls
Resource
win10v20201028
General
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Target
CompensationClaim_1766595879_03122021.xls
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Size
280KB
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MD5
bd2906aba947ef99d09ca923cd74b525
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SHA1
d1c18d825a31dd8133d64959557df934d042d583
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SHA256
ae42bb2d724005457d2b2ab54907b1915be43b1f37e83d3b40ac70e3fd9d56db
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SHA512
fe63b2349ff124fb9f01ba805b482c4216b2de5e73ab204dd535a5280ba4fd0a92d362492703b0a61b1486b11d6cee8f99ed654701f5563024548eaf245da6c7
Malware Config
Extracted
http://185.82.219.161/44267.8775178241.dat
http://45.140.146.26/44267.8775178241.dat
http://188.127.227.167/44267.8775178241.dat
http://44267.8775178241.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 1484 1812 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1852 1812 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1908 1812 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\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 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 Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1812 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1812 EXCEL.EXE 1812 EXCEL.EXE 1812 EXCEL.EXE -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1812 wrote to memory of 1484 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1484 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1484 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1484 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1484 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1484 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1484 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1852 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1852 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1852 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1852 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1852 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1852 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1852 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1908 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1908 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1908 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1908 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1908 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1908 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1908 1812 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_1766595879_03122021.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1812 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\Runtim.broks,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1484 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\Runtim.broks1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1852 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\Runtim.broks2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1908
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/768-5-0x000007FEF79D0000-0x000007FEF7C4A000-memory.dmpFilesize
2.5MB
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memory/1484-6-0x0000000000000000-mapping.dmp
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memory/1484-7-0x0000000076241000-0x0000000076243000-memory.dmpFilesize
8KB
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memory/1812-2-0x000000002F1B1000-0x000000002F1B4000-memory.dmpFilesize
12KB
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memory/1812-3-0x0000000071241000-0x0000000071243000-memory.dmpFilesize
8KB
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memory/1812-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1852-8-0x0000000000000000-mapping.dmp
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memory/1908-10-0x0000000000000000-mapping.dmp