Analysis
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max time kernel
149s -
max time network
84s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
13-05-2021 12:54
Static task
static1
Behavioral task
behavioral1
Sample
catalog-1984022420.xls
Resource
win7v20210408
Behavioral task
behavioral2
Sample
catalog-1984022420.xls
Resource
win10v20210410
General
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Target
catalog-1984022420.xls
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Size
367KB
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MD5
06850414efb83142e35b86c940dae78b
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SHA1
6a9ab6fe061cb0e355aba24221bd8c9ac2653130
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SHA256
5be9e33e7fe2676079254458bfcf2f29c3f386417730bda392ce69d808b29eb2
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SHA512
24a04b375fb17b008867863cf15dc3d88e7d1b435251e3273a944b18eb93e8424439e8ad59b4722021ed8d18229115d942477ace11f610c85b0345157a09fd9a
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 328 520 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1152 520 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\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 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 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\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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 520 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 520 EXCEL.EXE 520 EXCEL.EXE 520 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 520 wrote to memory of 328 520 EXCEL.EXE rundll32.exe PID 520 wrote to memory of 328 520 EXCEL.EXE rundll32.exe PID 520 wrote to memory of 328 520 EXCEL.EXE rundll32.exe PID 520 wrote to memory of 328 520 EXCEL.EXE rundll32.exe PID 520 wrote to memory of 328 520 EXCEL.EXE rundll32.exe PID 520 wrote to memory of 328 520 EXCEL.EXE rundll32.exe PID 520 wrote to memory of 328 520 EXCEL.EXE rundll32.exe PID 520 wrote to memory of 1152 520 EXCEL.EXE rundll32.exe PID 520 wrote to memory of 1152 520 EXCEL.EXE rundll32.exe PID 520 wrote to memory of 1152 520 EXCEL.EXE rundll32.exe PID 520 wrote to memory of 1152 520 EXCEL.EXE rundll32.exe PID 520 wrote to memory of 1152 520 EXCEL.EXE rundll32.exe PID 520 wrote to memory of 1152 520 EXCEL.EXE rundll32.exe PID 520 wrote to memory of 1152 520 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-1984022420.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/328-63-0x0000000000000000-mapping.dmp
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memory/328-64-0x0000000075C31000-0x0000000075C33000-memory.dmpFilesize
8KB
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memory/520-60-0x000000002FB61000-0x000000002FB64000-memory.dmpFilesize
12KB
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memory/520-61-0x0000000071191000-0x0000000071193000-memory.dmpFilesize
8KB
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memory/520-62-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1152-65-0x0000000000000000-mapping.dmp