Analysis
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max time kernel
150s -
max time network
8s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
13-05-2021 12:56
Static task
static1
Behavioral task
behavioral1
Sample
catalog-2080064519.xls
Resource
win7v20210410
Behavioral task
behavioral2
Sample
catalog-2080064519.xls
Resource
win10v20210410
General
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Target
catalog-2080064519.xls
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Size
367KB
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MD5
9dfabbf6638dd1532e5041e6e37bc900
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SHA1
b959cc30028b9a0c4a1b5d60b865ed0801bd6c80
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SHA256
778d9e7a4e6dbe6a82fe73e02ea0d5c54ddb5881929f19a2e832b57b4c6634eb
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SHA512
ce7f420b7c930b467f20940e96cdcae590e62db84d8b1948cd29589f4667780ae6d543f40ba0f1b33dc40f31c36f9e59d6e8e8447ab2ec04033d82076356667a
Malware Config
Extracted
https://smartpalakatva.com/edQsUZOLlE/th.html
https://pilstlcommodities.com/Ov4FlB3lpy/th.html
Signatures
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Process spawned unexpected child process 2 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.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 1612 308 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 568 308 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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 308 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 308 EXCEL.EXE 308 EXCEL.EXE 308 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 308 wrote to memory of 1612 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1612 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1612 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1612 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1612 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1612 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1612 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 568 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 568 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 568 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 568 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 568 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 568 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 568 308 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\catalog-2080064519.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 ..\tuti.rut,DllRegisterServer2⤵
- Process spawned unexpected child process
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut1,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/308-59-0x000000002F261000-0x000000002F264000-memory.dmpFilesize
12KB
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memory/308-60-0x0000000071CC1000-0x0000000071CC3000-memory.dmpFilesize
8KB
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memory/308-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/568-64-0x0000000000000000-mapping.dmp
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memory/1612-62-0x0000000000000000-mapping.dmp
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memory/1612-63-0x0000000075A31000-0x0000000075A33000-memory.dmpFilesize
8KB