Technical Information
Malicious functions:
Creates and executes the following:
- '%TEMP%\MakerPanda\dpinst-x86.exe' /sw
Modifies file system:
Creates the following files:
- %APPDATA%\Microsoft\CryptnetUrlCache\Content\2BF68F4714092295550497DD56F57004
- <SYSTEM32>\dllcache\usbser.sys.new
- %APPDATA%\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
- %APPDATA%\Microsoft\CryptnetUrlCache\MetaData\2BF68F4714092295550497DD56F57004
- <DRIVERS>\SET1.tmp
- %WINDIR%\LastGood\TMP2.tmp
- <DRIVERS>\SET4.tmp
- %APPDATA%\Microsoft\CryptnetUrlCache\Content\8A9510437CB4EEB09F4B3AC2BC980E19
- %APPDATA%\Microsoft\CryptnetUrlCache\MetaData\A6D8662C7600817D67B3C1A03BC53A1B
- %APPDATA%\Microsoft\CryptnetUrlCache\Content\A6D8662C7600817D67B3C1A03BC53A1B
- %APPDATA%\Microsoft\CryptnetUrlCache\MetaData\8A9510437CB4EEB09F4B3AC2BC980E19
- %APPDATA%\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
- %APPDATA%\Microsoft\CryptnetUrlCache\MetaData\C8E7EC0C85688F4738F3BE49B104BA67
- %APPDATA%\Microsoft\CryptnetUrlCache\Content\C8E7EC0C85688F4738F3BE49B104BA67
- %TEMP%\MakerPanda\arduino.cat
- %TEMP%\MakerPanda\ch341SER.CAT
- %TEMP%\MakerPanda\dpinst-amd64.exe
- %TEMP%\MakerPanda\CH341S98.SYS
- <DRIVERS>\usbser.sys
- %TEMP%\MakerPanda\Arduino.cer
- %TEMP%\MakerPanda\CH341PT.DLL
- %TEMP%\MakerPanda\CH341SER.VXD
- %TEMP%\MakerPanda\arduino.inf
- %WINDIR%\DPINST.LOG
- %TEMP%\MakerPanda\CH341SER.SYS
- %TEMP%\MakerPanda\dpinst-x86.exe
- %TEMP%\MakerPanda\CH341S64.SYS
- %TEMP%\MakerPanda\CH341SER.INF
Deletes the following files:
- %TEMP%\Cab1F.tmp
- %TEMP%\Cab21.tmp
- %TEMP%\Cab1D.tmp
- %TEMP%\Cab19.tmp
- %TEMP%\Cab1B.tmp
- %TEMP%\Cab29.tmp
- %TEMP%\Cab2B.tmp
- %TEMP%\Cab27.tmp
- %TEMP%\Cab23.tmp
- %TEMP%\Cab25.tmp
- %TEMP%\Cab17.tmp
- %TEMP%\Cab9.tmp
- %TEMP%\CabB.tmp
- %TEMP%\Cab7.tmp
- <DRIVERS>\SET1.tmp
- %TEMP%\Cab5.tmp
- %TEMP%\Cab13.tmp
- %TEMP%\Cab15.tmp
- %TEMP%\Cab11.tmp
- %TEMP%\CabD.tmp
- %TEMP%\CabF.tmp
Moves the following files:
- from <DRIVERS>\usbser.sys to <DRIVERS>\OLD3.tmp
- from %WINDIR%\LastGood\TMP2.tmp to %WINDIR%\LastGood\system32\drivers\usbser.sys
Substitutes the following files:
- <DRIVERS>\usbser.sys
Network activity:
Connects to:
- 'cr#.##obalsign.net':80
- 'cr#.##obalsign.com':80
- 'wp#d':80
- 'www.download.windowsupdate.com':80
TCP:
HTTP GET requests:
- http://cr#.##obalsign.net/root.crl
- http://cr#.##obalsign.com/gs/gscodesigng2.crl
- http://cr#.##obalsign.com/gs/gstimestampingg2.crl
- http://11#.#11.111.1/wpad.dat via wp#d
- http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootseq.txt
- http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
UDP:
- DNS ASK cr#.##obalsign.net
- DNS ASK cr#.##obalsign.com
- DNS ASK wp#d
- DNS ASK www.download.windowsupdate.com
