Trojan.Encoder.10777

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '{63439B2A-EA27-1668-4C70-0D83065789F1}' = '%PROGRAMDATA%\{FF53B31A-C217-8A78-4C70-0D83065789F1}\52ec6385.exe'

Creates or modifies the following files

<SYSTEM32>\tasks\{63439b2a-ea27-1668-4c70-0d83065789f1}

Creates the following files on removable media

<Drive name for removable media>:\{1ae78717-a934-f82e-bb75-5330e2af5ce8}\8ad0c29c-3f20-9a18-0766-fe9e8c1ac147.exe
<Drive name for removable media>:\indogerman2010.pptx.lnk
<Drive name for removable media>:\samieee_obiee_presentation.pptx.lnk
<Drive name for removable media>:\roozenedowebinar.pptx.lnk
<Drive name for removable media>:\iso27k_isms_implementation_and_certification_process_overview_v2.pptx.lnk
<Drive name for removable media>:\gruenspecht_02172016.pptx.lnk
<Drive name for removable media>:\file1.ppt.lnk
<Drive name for removable media>:\mappingconcepthubberlin.ppt.lnk
<Drive name for removable media>:\metac.ppt.lnk
<Drive name for removable media>:\sacs_presentation_sacs_qep_improving_rt_education_final.ppt.lnk
<Drive name for removable media>:\writingcompletesarnarrative_1103.ppt.lnk
<Drive name for removable media>:\proposaltemplates.ppt.lnk
<Drive name for removable media>:\spib_pima.pdf.lnk
<Drive name for removable media>:\accountsreceivable.ppt.lnk
<Drive name for removable media>:\cbz.png.lnk
<Drive name for removable media>:\arrow-down.png.lnk
<Drive name for removable media>:\cleanlyrics.png.lnk
<Drive name for removable media>:\breakpoint.png.lnk
<Drive name for removable media>:\dissolveanother.png.lnk
<Drive name for removable media>:\background.png.lnk
<Drive name for removable media>:\investmentbankca_ca8.pem.lnk
<Drive name for removable media>:\systisoft.pem.lnk
<Drive name for removable media>:\delongcacert.pem.lnk
<Drive name for removable media>:\ck_ugo.pem.lnk
<Drive name for removable media>:\dualectls.pdf.lnk
<Drive name for removable media>:\bg_search_box.png.lnk
<Drive name for removable media>:\bc01.pdf.lnk
<Drive name for removable media>:\hypothyroidism_slides.pptx.lnk
<Drive name for removable media>:\contractualdeadlines.xls.lnk
<Drive name for removable media>:\1sm_price.zip.lnk
<Drive name for removable media>:\removedtitles_records.zip.lnk
<Drive name for removable media>:\contractualdeadlines.zip.lnk
<Drive name for removable media>:\price.zip.lnk
<Drive name for removable media>:\al.xlsx.lnk
<Drive name for removable media>:\2013_finalsummaryforweb.xlsx.lnk
<Drive name for removable media>:\trtf_matrix2012_oct.xlsx.lnk
<Drive name for removable media>:\applicant.xlsx.lnk
<Drive name for removable media>:\2013_smccc_competition_points_jul2013.xlsx.lnk
<Drive name for removable media>:\disclosuredetails.xlsx.lnk
<Drive name for removable media>:\suspendedcompanies.xlsx.lnk
<Drive name for removable media>:\elvisimp.rdf.lnk
<Drive name for removable media>:\foaf.rdf.lnk
<Drive name for removable media>:\price030215.xls.lnk
<Drive name for removable media>:\1sm_price.xls.lnk
<Drive name for removable media>:\testwmv.wmv.lnk
<Drive name for removable media>:\passport_pal.wmv.lnk
<Drive name for removable media>:\myhrvoldhanssenbiharfamine.rtf.lnk
<Drive name for removable media>:\military_callsigns_0311.rtf.lnk
<Drive name for removable media>:\waterlandhealthkano.rtf.lnk
<Drive name for removable media>:\pubnet_855.rtf.lnk
<Drive name for removable media>:\schema.rdf.lnk
<Drive name for removable media>:\skos.rdf.lnk
<Drive name for removable media>:\sioc.rdf.lnk
<Drive name for removable media>:\cee_mmsprogram_summary_public.xlsx.lnk
<Drive name for removable media>:\fil_20060629111052.pdf.lnk
<Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.pdf.lnk
<Drive name for removable media>:\10thingscondoms.pdf.lnk
<Drive name for removable media>:\adhd_and_obesity.docx.lnk
<Drive name for removable media>:\thlps_keeper_mayer_1965.docx.lnk
<Drive name for removable media>:\holycrosschurchinstructions.docx.lnk
<Drive name for removable media>:\file_p_00000000_1371597592.docx.lnk
<Drive name for removable media>:\issi2013_template_for_posters.docx.lnk
<Drive name for removable media>:\weeklysheet1215.doc.lnk
<Drive name for removable media>:\cveuropeo.doc.lnk
<Drive name for removable media>:\applicantform_en.doc.lnk
<Drive name for removable media>:\sdksampleprivdeveloper.cer.lnk
<Drive name for removable media>:\contosoroot_1.cer.lnk
<Drive name for removable media>:\skypesetup.exe.lnk
<Drive name for removable media>:\contoso.cer.lnk
<Drive name for removable media>:\testcertificate.cer.lnk
<Drive name for removable media>:\pmd.cer.lnk
<Drive name for removable media>:\contoso_1.cer.lnk
<Drive name for removable media>:\default.bmp.lnk
<Drive name for removable media>:\dashborder_120.bmp.lnk
<Drive name for removable media>:\coffee.bmp.lnk
<Drive name for removable media>:\toolbar.bmp.lnk
<Drive name for removable media>:\dashborder_144.bmp.lnk
<Drive name for removable media>:\archer.avi.lnk
<Drive name for removable media>:\delete.avi.lnk
<Drive name for removable media>:\000814251_video_01.avi.lnk
<Drive name for removable media>:\sdkfailsafeemulator.cer.lnk
<Drive name for removable media>:\tcm851ax32.exe.lnk
<Drive name for removable media>:\jre-7u75-windows-i586-iftw.exe.lnk
<Drive name for removable media>:\winmine.exe.lnk
<Drive name for removable media>:\video_1.mp4.lnk
<Drive name for removable media>:\2.jpg.lnk
<Drive name for removable media>:\d0068197bb5a41fea16a220c45390606.mp4.lnk
<Drive name for removable media>:\51.mp4.lnk
<Drive name for removable media>:\clip_1080_5sec_10mbps_h264.mp4.lnk
<Drive name for removable media>:\etc6_m_1.mov.lnk
<Drive name for removable media>:\spanner.mov.lnk
<Drive name for removable media>:\dag2_panel1_320_ref.mov.lnk
<Drive name for removable media>:\firefly1.mov.lnk
<Drive name for removable media>:\210252809.jpg.lnk
<Drive name for removable media>:\3.jpg.lnk
<Drive name for removable media>:\13.jpg.lnk
<Drive name for removable media>:\4f0bf7ff71f28.jpg.lnk
<Drive name for removable media>:\parnas_01.jpeg.lnk
<Drive name for removable media>:\notepad.exe.lnk
<Drive name for removable media>:\3.jpeg.lnk
<Drive name for removable media>:\4f0bf7ff71f28.jpeg.lnk
<Drive name for removable media>:\region-north-karelia.jpeg.lnk
<Drive name for removable media>:\168.jpeg.lnk
<Drive name for removable media>:\about.html.lnk
<Drive name for removable media>:\browse.html.lnk
<Drive name for removable media>:\tree_view.html.lnk
<Drive name for removable media>:\browse.htm.lnk
<Drive name for removable media>:\tree_view.htm.lnk
<Drive name for removable media>:\garden.htm.lnk
<Drive name for removable media>:\utorrent.exe.lnk
<Drive name for removable media>:\calculatorworksheet.zip.lnk
<Drive name for removable media>:\productos.zip.lnk

Malicious functions

Injects code into

the following system processes:

%WINDIR%\syswow64\svchost.exe

the following user processes:

iexplore.exe

Modifies file system

Creates the following files

%PROGRAMDATA%\{ff53b31a-c217-8a78-4c70-0d83065789f1}\52ec6385.exe

Deletes the following files

<Drive name for removable media>:\{1ae78717-a934-f82e-bb75-5330e2af5ce8}\8ad0c29c-3f20-9a18-0766-fe9e8c1ac147.exe

Substitutes the following files

<Drive name for removable media>:\{1ae78717-a934-f82e-bb75-5330e2af5ce8}\8ad0c29c-3f20-9a18-0766-fe9e8c1ac147.exe

Deletes itself.

Miscellaneous

Creates and executes the following

'<Full path to file>' ' (with hidden window)
'%WINDIR%\syswow64\svchost.exe' ' (with hidden window)

Executes the following

'%WINDIR%\syswow64\svchost.exe'

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