Analysis
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max time kernel
149s -
max time network
11s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
13-05-2021 12:59
Static task
static1
Behavioral task
behavioral1
Sample
catalog-291206972.xls
Resource
win7v20210410
Behavioral task
behavioral2
Sample
catalog-291206972.xls
Resource
win10v20210410
General
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Target
catalog-291206972.xls
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Size
367KB
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MD5
2ace7f812b812a87db109c09ebdb1b58
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SHA1
b6240850c6bd9eed17f936d8c4a950e09afe83c5
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SHA256
b5ce168b00c7cf58cad2a9b4f21b1025710dd6921d908f40c7cabd77de877e11
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SHA512
3fcfcb979ad0306283e59b9d0970d4d1cd3d7f6d31209a8982c0bfe80d483d774438ec7b638b459d273a8a143cbbd6478ae7c426c759e85222748e47b10c06b1
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 1472 308 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1480 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 (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 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 (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" 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 1472 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1472 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1472 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1472 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1472 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1472 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1472 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1480 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1480 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1480 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1480 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1480 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1480 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 1480 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-291206972.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:308 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1472 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1480