Analysis
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max time kernel
148s -
max time network
121s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
13-05-2021 12:56
Static task
static1
Behavioral task
behavioral1
Sample
catalog-2079036411.xls
Resource
win7v20210410
Behavioral task
behavioral2
Sample
catalog-2079036411.xls
Resource
win10v20210410
General
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Target
catalog-2079036411.xls
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Size
367KB
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MD5
2e20f15233d0243d2c9f6aab8cc1eefa
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SHA1
2105414687e81930b9c6cc76cdb471ac50c6053e
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SHA256
59f5b98be9bc536ddcd9823de632f479f2007867794bc6b9b8b88dec74a43e86
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SHA512
e1e10d5c244b517b393fb5397a1b4f255a3bed6a9368eab798e2f0358e8b6e1b29fada43b4e7076c01d8462dadaee4988d16efcacf295bfb73624dc37c4a1eea
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 1444 1888 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 520 1888 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 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 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 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 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\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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1888 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1888 EXCEL.EXE 1888 EXCEL.EXE 1888 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1888 wrote to memory of 1444 1888 EXCEL.EXE rundll32.exe PID 1888 wrote to memory of 1444 1888 EXCEL.EXE rundll32.exe PID 1888 wrote to memory of 1444 1888 EXCEL.EXE rundll32.exe PID 1888 wrote to memory of 1444 1888 EXCEL.EXE rundll32.exe PID 1888 wrote to memory of 1444 1888 EXCEL.EXE rundll32.exe PID 1888 wrote to memory of 1444 1888 EXCEL.EXE rundll32.exe PID 1888 wrote to memory of 1444 1888 EXCEL.EXE rundll32.exe PID 1888 wrote to memory of 520 1888 EXCEL.EXE rundll32.exe PID 1888 wrote to memory of 520 1888 EXCEL.EXE rundll32.exe PID 1888 wrote to memory of 520 1888 EXCEL.EXE rundll32.exe PID 1888 wrote to memory of 520 1888 EXCEL.EXE rundll32.exe PID 1888 wrote to memory of 520 1888 EXCEL.EXE rundll32.exe PID 1888 wrote to memory of 520 1888 EXCEL.EXE rundll32.exe PID 1888 wrote to memory of 520 1888 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-2079036411.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/520-64-0x0000000000000000-mapping.dmp
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memory/1444-62-0x0000000000000000-mapping.dmp
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memory/1444-63-0x0000000075161000-0x0000000075163000-memory.dmpFilesize
8KB
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memory/1888-59-0x000000002F111000-0x000000002F114000-memory.dmpFilesize
12KB
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memory/1888-60-0x0000000070E21000-0x0000000070E23000-memory.dmpFilesize
8KB
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memory/1888-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB