Analysis
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max time kernel
148s -
max time network
11s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
13-05-2021 12:58
Static task
static1
Behavioral task
behavioral1
Sample
catalog-239708874.xls
Resource
win7v20210410
Behavioral task
behavioral2
Sample
catalog-239708874.xls
Resource
win10v20210410
General
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Target
catalog-239708874.xls
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Size
367KB
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MD5
13875f29b7ba280e14e6610b11fdcddf
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SHA1
48eeb3ed3fb29c9aaf4298c8f3eff4ebda75acd3
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SHA256
a01617633840effc51c537ad85e4d98a3e436a93048d8b65d6847dac5db3f669
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SHA512
8caecae1bb82dff9e7d106130881ddf5506dc778903def5fc2bcb696d830350413365410afb4895c1d45e16a88adce6582da51b375275c97ca65e97bd535c576
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 660 308 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 752 308 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\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 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 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 660 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 660 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 660 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 660 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 660 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 660 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 660 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 752 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 752 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 752 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 752 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 752 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 752 308 EXCEL.EXE rundll32.exe PID 308 wrote to memory of 752 308 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-239708874.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:660
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:752
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