Analysis
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max time kernel
149s -
max time network
38s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
13-05-2021 12:56
Static task
static1
Behavioral task
behavioral1
Sample
catalog-2106884024.xls
Resource
win7v20210408
Behavioral task
behavioral2
Sample
catalog-2106884024.xls
Resource
win10v20210408
General
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Target
catalog-2106884024.xls
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Size
367KB
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MD5
709c66ed686fb25a8f4bee76ec6f8a1a
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SHA1
73920117cbd26cf3a5854d31a401a8843eaf8b78
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SHA256
e8c554d96d79173f534a147c98a54a329eb7228b110b5dcae33cfc7ce02fd16e
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SHA512
560376c50f62d585eac050610bba78c546c0fe625f6bdda253fc4fdb29adad277a78ecbc2104384ac71ec185ec0935dcb63d1651c4fef320df3a1a02f011d822
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 748 980 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1112 980 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 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 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 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\Toolbar\ShowDiscussionButton = "Yes" 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 980 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 980 EXCEL.EXE 980 EXCEL.EXE 980 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 980 wrote to memory of 748 980 EXCEL.EXE rundll32.exe PID 980 wrote to memory of 748 980 EXCEL.EXE rundll32.exe PID 980 wrote to memory of 748 980 EXCEL.EXE rundll32.exe PID 980 wrote to memory of 748 980 EXCEL.EXE rundll32.exe PID 980 wrote to memory of 748 980 EXCEL.EXE rundll32.exe PID 980 wrote to memory of 748 980 EXCEL.EXE rundll32.exe PID 980 wrote to memory of 748 980 EXCEL.EXE rundll32.exe PID 980 wrote to memory of 1112 980 EXCEL.EXE rundll32.exe PID 980 wrote to memory of 1112 980 EXCEL.EXE rundll32.exe PID 980 wrote to memory of 1112 980 EXCEL.EXE rundll32.exe PID 980 wrote to memory of 1112 980 EXCEL.EXE rundll32.exe PID 980 wrote to memory of 1112 980 EXCEL.EXE rundll32.exe PID 980 wrote to memory of 1112 980 EXCEL.EXE rundll32.exe PID 980 wrote to memory of 1112 980 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-2106884024.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:980 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:748 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1112