Analysis
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max time kernel
148s -
max time network
125s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
13-05-2021 12:55
Static task
static1
Behavioral task
behavioral1
Sample
catalog-2039169496.xls
Resource
win7v20210410
Behavioral task
behavioral2
Sample
catalog-2039169496.xls
Resource
win10v20210410
General
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Target
catalog-2039169496.xls
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Size
367KB
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MD5
2bda1337c502989c23fc8c75ada2c271
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SHA1
0a5930571088ad8f8ab7a51a5c057fc306b3fc53
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SHA256
39199c98bfedb5102657cfc5a6bebc7a82b26f9fd52b4e062e1cbf031bbb6535
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SHA512
ef36f008074fa8177e8965d3b660d21945c7970652a91afd81dadf468a4af94ad41d69af597316849b4906eba8e57ccc8ea088790513dba2dfc4655e4d6ac6ae
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 324 1856 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1640 1856 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\Toolbar\ShowDiscussionButton = "Yes" 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\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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 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 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1856 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1856 EXCEL.EXE 1856 EXCEL.EXE 1856 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1856 wrote to memory of 324 1856 EXCEL.EXE rundll32.exe PID 1856 wrote to memory of 324 1856 EXCEL.EXE rundll32.exe PID 1856 wrote to memory of 324 1856 EXCEL.EXE rundll32.exe PID 1856 wrote to memory of 324 1856 EXCEL.EXE rundll32.exe PID 1856 wrote to memory of 324 1856 EXCEL.EXE rundll32.exe PID 1856 wrote to memory of 324 1856 EXCEL.EXE rundll32.exe PID 1856 wrote to memory of 324 1856 EXCEL.EXE rundll32.exe PID 1856 wrote to memory of 1640 1856 EXCEL.EXE rundll32.exe PID 1856 wrote to memory of 1640 1856 EXCEL.EXE rundll32.exe PID 1856 wrote to memory of 1640 1856 EXCEL.EXE rundll32.exe PID 1856 wrote to memory of 1640 1856 EXCEL.EXE rundll32.exe PID 1856 wrote to memory of 1640 1856 EXCEL.EXE rundll32.exe PID 1856 wrote to memory of 1640 1856 EXCEL.EXE rundll32.exe PID 1856 wrote to memory of 1640 1856 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-2039169496.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1856 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:324 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1640
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/324-62-0x0000000000000000-mapping.dmp
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memory/324-63-0x0000000075631000-0x0000000075633000-memory.dmpFilesize
8KB
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memory/1640-64-0x0000000000000000-mapping.dmp
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memory/1856-59-0x000000002F041000-0x000000002F044000-memory.dmpFilesize
12KB
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memory/1856-60-0x0000000071081000-0x0000000071083000-memory.dmpFilesize
8KB
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memory/1856-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB