Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 dd6fe787c595ac56…

MALICIOUS

PDF / .VIR

325.0 KB Created: 2024-03-30 19:59:21 Authoring application: Mobipocket Creator First seen: 2024-05-27
MD5: fc889ba9ff5fe3122c33911fdc18094d SHA-1: 19ff93d34795af8a93631ac9c2c2d0e0fa6b0a18 SHA-256: dd6fe787c595ac56daf14a021656de52060dec232d2794942ecc0584b6cce2e1
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9396

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://kombi-nation.co.uk/execs/trackit.php?user=guest_IuSyD&page=https://assets.website-files.com/65f04bf2f0d160710116eda6/662f7cde02c1e05c59916077_42055540945.pdf In PDF document text
    • http://tarifbiene.de/ext/https://assets.website-files.com/660014a8120ce91830bf5e0c/662f843b9663989710dec7f1_81449120106.pdfIn PDF document text
    • https://www.savoir-et-patrimoine.com/countclick29.php?url=https://uploads-ssl.webflow.com/65f02a0d6da2e3540e2e3986/662f80c329ced0112dcdcc05_23456918854.pdfIn PDF document text
    • http://sprintcarratings.com/AdvertiseClick.aspx?AdClientID=2&Url=https://assets.website-files.com/65dcaba8cef5e66606462df2/662f85d6dcc04392258822f6_80874395443.pdfIn PDF document text
    • https://newslink.localnewspapers.co.nz/jump.php?jumpType=adClick&AdTarget=https://www.colin.edu/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://nemovanob.skyangelus.com/f/35266&AdID=101&CarouselID=19&Site=21&SiteC=21&Region=Southland&RegionC=&AdPosition=FeatureAd&SourceURL=newslink.localnewspapers.co.nzIn PDF document text
    • http://9pha.com/change_language.asp?language_id=en&MemberSite_session=site_12048_&link=https://train.cimes.fsu.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://fiditale.gmcalaya.com/f/45611In PDF document text
    • http://www.all3porn.com/cgi-bin/at3/out.cgi?id=11&tag=porr_biograf&trade=https://k-lgroup.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://jomibefewe.palsaikbbq.com/f/85404In PDF document text
    • http://www.cjz1688.com/ADClick.aspx?SiteID=206&ADID=1&url=https://klaireorganic.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://zokirafanizal.club-directory.com/f/58487836In PDF document text
    • https://tasasizemetaga.yoyep.co.za/29704285111529719206960851?revakivamabawidarela=rirasogesomaduxikixofizapoduxubuvujobozumavafanejomuzodoboluzozevewedatijinujalexuxawejujadipusaziwetivututawamuginikemigulinidumudijinunaloxarunozejefapetekanipepozokezufexiliginekukofojisupefofezomofow&keyword=6u+baseball+practice+plan&forikogabotazozinosizolasepuzubofikinakupafamidorajedomozikirokiripebebowapoji=fenibatosijoforiwisiwofuwiminosejejitozunemowesupasatuvufinelolububununejusaxuxutelirixigivasolizovuxafejolokujaguvifawudavozonoIn PDF document text
    • https://tasasizemetaga.yoyep.co.za/29704285111529719206960851?revakivamabawidarela=rirasogesomaduxikixofizapoduxubuvujobozumavafanejomuzodoboluzozevewedatijinujalexuxawejujadipusaziwetivututawamuginikemigulinidumudijinunaloxarunozejefapetekanipepozokezufexiliginekukofojisupefofezomofow&keyword=6u+baPDF link annotation
    • https://tasasizemetaga.yoyep.co.za/29704285111529719206960851?revakivamabawidarela=rirasogesomaduxikixofizapoduxubuvujobozumavafanejomuzodoboluzozevewedatijinujalexuxawejujadipusaziwetivututawamuginikemigulinidumudijinunaloxarunozejefapetekanipepozokezufexiliginekukofojisupefofezomofow&keyword=6u+baseball+practice+plan&forikogabotazozinosizolasepuzubofikinakupafamidorajedomozikirokiripebebowapoji=fenibatosijoforiwisiwofuwiminosejejitozunemowesupasatuvufinelolububununejusaxuxutelirixigivasolizovuPDF link annotation
    • https://tasasizemetaga.yoyep.co.za/29704285111529719206960851?revakivamabawidarela=rirasogesomaduxikixofizapoduxubuvujobozumavafanejomuzodoboluzozevewedatijinujalexuxawejujadipusaziwetivututawamuginikemigulinidumudijinunaloxarunozejefapetekanipepozokezufexiliginekukofojisupefofezomofow&keyword=6u+baseball+practice+plan&forikogabotazozinosizolasepuzubofikinakupafamidorajedomozikirokiripebebowapoji�nibatosijoforiwisiwofuwiminosejejitozunemowesupasatuvufinelolububununejusaxuxutelirixigivasolizovuxafejolokujaguvifawudavozonoIn PDF document text
    • https://valizadeh-younes.blogsky.com/dailylink/?go=https://assets.website-files.com/65dc9a67a05406235d6e42f4/662f8209fddf7e5befaec00b_rilivusox.pdf&id=5In PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0004c3b9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004c3b9.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004c3b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C3B9 14940 bytes
SHA-256: 62c87113e063cd22b2657acb4c6e705e0f72e9e847380bb6b787f0cbcb950266
font_01_sfnt_off0004e9a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E9A8 11956 bytes
SHA-256: dd9a8f2f99f2ef8e2467d858d61f91ac80ebcf260e2a239fad6b3feca264daec