Analysis
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max time kernel
147s -
max time network
81s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
13-05-2021 12:57
Static task
static1
Behavioral task
behavioral1
Sample
catalog-2131836968.xls
Resource
win7v20210408
Behavioral task
behavioral2
Sample
catalog-2131836968.xls
Resource
win10v20210408
General
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Target
catalog-2131836968.xls
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Size
367KB
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MD5
16751532b0208a9b159783dd9486c83f
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SHA1
de9f4847c8eb9f0c5fb7f5c2d9e3d4904d44e62c
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SHA256
538289db6e2c31428d6f7badd4b89e6f03249a460b410b06c3326183f14c5b3a
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SHA512
3be76a98e279215668c24db0de60eab2c17baeeb1c52585141b79e25ec35d41faa0506548675971f2a3d84a4e0956ce6ad6478d464ce345fd1bc1540da475a4c
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 436 368 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1100 368 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 (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\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 (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 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 (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 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 368 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 368 EXCEL.EXE 368 EXCEL.EXE 368 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 368 wrote to memory of 436 368 EXCEL.EXE rundll32.exe PID 368 wrote to memory of 436 368 EXCEL.EXE rundll32.exe PID 368 wrote to memory of 436 368 EXCEL.EXE rundll32.exe PID 368 wrote to memory of 436 368 EXCEL.EXE rundll32.exe PID 368 wrote to memory of 436 368 EXCEL.EXE rundll32.exe PID 368 wrote to memory of 436 368 EXCEL.EXE rundll32.exe PID 368 wrote to memory of 436 368 EXCEL.EXE rundll32.exe PID 368 wrote to memory of 1100 368 EXCEL.EXE rundll32.exe PID 368 wrote to memory of 1100 368 EXCEL.EXE rundll32.exe PID 368 wrote to memory of 1100 368 EXCEL.EXE rundll32.exe PID 368 wrote to memory of 1100 368 EXCEL.EXE rundll32.exe PID 368 wrote to memory of 1100 368 EXCEL.EXE rundll32.exe PID 368 wrote to memory of 1100 368 EXCEL.EXE rundll32.exe PID 368 wrote to memory of 1100 368 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-2131836968.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/368-59-0x000000002F131000-0x000000002F134000-memory.dmpFilesize
12KB
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memory/368-60-0x0000000071191000-0x0000000071193000-memory.dmpFilesize
8KB
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memory/368-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/436-62-0x0000000000000000-mapping.dmp
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memory/436-63-0x0000000075C31000-0x0000000075C33000-memory.dmpFilesize
8KB
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memory/1100-64-0x0000000000000000-mapping.dmp