Analysis
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max time kernel
148s -
max time network
11s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
13-05-2021 12:55
Static task
static1
Behavioral task
behavioral1
Sample
catalog-2029944831.xls
Resource
win7v20210410
Behavioral task
behavioral2
Sample
catalog-2029944831.xls
Resource
win10v20210408
General
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Target
catalog-2029944831.xls
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Size
367KB
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MD5
ae4a7a4a50621c31e771b589f800cfd7
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SHA1
21020b2f44299266de362ae8817e08a6122e2c6b
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SHA256
d426f9e1657aa8a09fa039fe9c144fbe5bcb1ce054d8e63c5f9d7a7cbcd74bce
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SHA512
f80034fc0835c0b18e9f4d5926736471811bc8953702cc7554116e8168ff33c9a9346e2372f8fabef6d3ce5b331f779d5f532ddabf2f6a42920a71d2877e554c
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 1192 336 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 2040 336 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 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\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 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 EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 336 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 336 EXCEL.EXE 336 EXCEL.EXE 336 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 336 wrote to memory of 1192 336 EXCEL.EXE rundll32.exe PID 336 wrote to memory of 1192 336 EXCEL.EXE rundll32.exe PID 336 wrote to memory of 1192 336 EXCEL.EXE rundll32.exe PID 336 wrote to memory of 1192 336 EXCEL.EXE rundll32.exe PID 336 wrote to memory of 1192 336 EXCEL.EXE rundll32.exe PID 336 wrote to memory of 1192 336 EXCEL.EXE rundll32.exe PID 336 wrote to memory of 1192 336 EXCEL.EXE rundll32.exe PID 336 wrote to memory of 2040 336 EXCEL.EXE rundll32.exe PID 336 wrote to memory of 2040 336 EXCEL.EXE rundll32.exe PID 336 wrote to memory of 2040 336 EXCEL.EXE rundll32.exe PID 336 wrote to memory of 2040 336 EXCEL.EXE rundll32.exe PID 336 wrote to memory of 2040 336 EXCEL.EXE rundll32.exe PID 336 wrote to memory of 2040 336 EXCEL.EXE rundll32.exe PID 336 wrote to memory of 2040 336 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-2029944831.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/336-59-0x000000002F2F1000-0x000000002F2F4000-memory.dmpFilesize
12KB
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memory/336-60-0x0000000071391000-0x0000000071393000-memory.dmpFilesize
8KB
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memory/336-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1192-62-0x0000000000000000-mapping.dmp
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memory/1192-63-0x0000000075551000-0x0000000075553000-memory.dmpFilesize
8KB
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memory/2040-64-0x0000000000000000-mapping.dmp