Analysis
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max time kernel
149s -
max time network
86s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
13-05-2021 12:58
Static task
static1
Behavioral task
behavioral1
Sample
catalog-236752457.xls
Resource
win7v20210408
Behavioral task
behavioral2
Sample
catalog-236752457.xls
Resource
win10v20210410
General
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Target
catalog-236752457.xls
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Size
367KB
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MD5
4f8bff7047f1dc6470deda5dc56eaa38
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SHA1
ea318203289936b2facec1957f662baa50d6d5e4
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SHA256
501d71d94f7dd2de7abecdb76990f964a12c56795c3b4bf592a289fb55bac8b4
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SHA512
904c5622c8f8172ef28fe90321e7aae88f6050938ba85518023620a344fcaede45afa920c1336efc668dd5c09eb822ce400b86fec69b17bcd32538193e98bd87
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 1752 1240 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 2024 1240 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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1240 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1240 EXCEL.EXE 1240 EXCEL.EXE 1240 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1240 wrote to memory of 1752 1240 EXCEL.EXE rundll32.exe PID 1240 wrote to memory of 1752 1240 EXCEL.EXE rundll32.exe PID 1240 wrote to memory of 1752 1240 EXCEL.EXE rundll32.exe PID 1240 wrote to memory of 1752 1240 EXCEL.EXE rundll32.exe PID 1240 wrote to memory of 1752 1240 EXCEL.EXE rundll32.exe PID 1240 wrote to memory of 1752 1240 EXCEL.EXE rundll32.exe PID 1240 wrote to memory of 1752 1240 EXCEL.EXE rundll32.exe PID 1240 wrote to memory of 2024 1240 EXCEL.EXE rundll32.exe PID 1240 wrote to memory of 2024 1240 EXCEL.EXE rundll32.exe PID 1240 wrote to memory of 2024 1240 EXCEL.EXE rundll32.exe PID 1240 wrote to memory of 2024 1240 EXCEL.EXE rundll32.exe PID 1240 wrote to memory of 2024 1240 EXCEL.EXE rundll32.exe PID 1240 wrote to memory of 2024 1240 EXCEL.EXE rundll32.exe PID 1240 wrote to memory of 2024 1240 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-236752457.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/1240-60-0x000000002F901000-0x000000002F904000-memory.dmpFilesize
12KB
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memory/1240-61-0x0000000071B91000-0x0000000071B93000-memory.dmpFilesize
8KB
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memory/1240-62-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1752-63-0x0000000000000000-mapping.dmp
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memory/1752-64-0x0000000075B31000-0x0000000075B33000-memory.dmpFilesize
8KB
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memory/2024-65-0x0000000000000000-mapping.dmp