Analysis
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max time kernel
148s -
max time network
123s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
13-05-2021 12:54
Static task
static1
Behavioral task
behavioral1
Sample
catalog-1974012548.xls
Resource
win7v20210410
Behavioral task
behavioral2
Sample
catalog-1974012548.xls
Resource
win10v20210410
General
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Target
catalog-1974012548.xls
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Size
367KB
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MD5
f4cfdf8031d98897354017d762c35f02
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SHA1
8abc3b0303fdd554b1e7b8c8a07308f15bc548fe
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SHA256
fabc1bb20bfac0798fe7895bf6b2da5998501eacce303bc1c6ec82bf9d1b56f6
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SHA512
aa573abe426225dc2cc88e5ebf9a2b2f48c937f283874dada0360813def162846870dda65337c417ee1c82e3adb368709bb5c140fbe5fca8e2ce43f024bf65bf
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 1156 1864 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1188 1864 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\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" 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\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 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 (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 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1864 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1864 EXCEL.EXE 1864 EXCEL.EXE 1864 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1864 wrote to memory of 1156 1864 EXCEL.EXE rundll32.exe PID 1864 wrote to memory of 1156 1864 EXCEL.EXE rundll32.exe PID 1864 wrote to memory of 1156 1864 EXCEL.EXE rundll32.exe PID 1864 wrote to memory of 1156 1864 EXCEL.EXE rundll32.exe PID 1864 wrote to memory of 1156 1864 EXCEL.EXE rundll32.exe PID 1864 wrote to memory of 1156 1864 EXCEL.EXE rundll32.exe PID 1864 wrote to memory of 1156 1864 EXCEL.EXE rundll32.exe PID 1864 wrote to memory of 1188 1864 EXCEL.EXE rundll32.exe PID 1864 wrote to memory of 1188 1864 EXCEL.EXE rundll32.exe PID 1864 wrote to memory of 1188 1864 EXCEL.EXE rundll32.exe PID 1864 wrote to memory of 1188 1864 EXCEL.EXE rundll32.exe PID 1864 wrote to memory of 1188 1864 EXCEL.EXE rundll32.exe PID 1864 wrote to memory of 1188 1864 EXCEL.EXE rundll32.exe PID 1864 wrote to memory of 1188 1864 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-1974012548.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/1156-62-0x0000000000000000-mapping.dmp
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memory/1156-63-0x0000000076A81000-0x0000000076A83000-memory.dmpFilesize
8KB
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memory/1188-64-0x0000000000000000-mapping.dmp
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memory/1864-59-0x000000002F8A1000-0x000000002F8A4000-memory.dmpFilesize
12KB
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memory/1864-60-0x0000000071C71000-0x0000000071C73000-memory.dmpFilesize
8KB
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memory/1864-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB