Technical Information
Malicious functions
Executes the following (exploit)
- '<SYSTEM32>\regsvr32.exe' /s calc
- '<SYSTEM32>\regsvr32.exe' %ALLUSERSPROFILE%\Dis.ooccxx
- '<SYSTEM32>\regsvr32.exe' %ALLUSERSPROFILE%\Disa.ooccxx
- '<SYSTEM32>\regsvr32.exe' %ALLUSERSPROFILE%\Disb.ooccxx
Modifies file system
Creates the following files
- %TEMP%\error028560_01.xml
- <Current directory>\c3741000
Substitutes the following files
- <PATH_SAMPLE>.xlsb
Network activity
Connects to
- '14#.#0.87.163':80
- '5.###.118.198':80
- '91.##4.11.15':80
TCP
HTTP GET requests
- http://91.##4.11.15/44666,6175321759.dat
Other
- '34.##9.100.209':443
- '34.##7.121.53':443
Miscellaneous
Creates and executes the following
- '<SYSTEM32>\regsvr32.exe' /s calc' (with hidden window)
- '<SYSTEM32>\regsvr32.exe' %ALLUSERSPROFILE%\Dis.ooccxx' (with hidden window)
- '<SYSTEM32>\regsvr32.exe' %ALLUSERSPROFILE%\Disa.ooccxx' (with hidden window)
- '<SYSTEM32>\regsvr32.exe' %ALLUSERSPROFILE%\Disb.ooccxx' (with hidden window)
