Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 f68fe8468b7a7415…

MALICIOUS

PDF / .VIR

550.9 KB Created: 2024-01-04 04:01:36 Authoring application: pdf-parser First seen: 2024-07-06
MD5: 59fa4a38018715a886b352dc62681e7f SHA-1: 36e049b86ecd5a70a65049a45d6630300acf5c23 SHA-256: f68fe8468b7a7415977a010ca2601ff211ffa6627afb93a8653d333e8394ad51
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8217

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://parrillaweb.es/url/?n=CALLEJERO%20&t=&e=https://assets.website-files.com/65ffd56e4060c78c49a8f321/663535719e79474e4dfdcc70_91171540179.pdf In PDF document text
    • https://nycpodcastnetwork.com/nycpnut/?ty=dl&ppi=28512&url=https://good-reform.info/js/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://terumifapuxu.theplazahotelbalanga.com/f/6561470In PDF document text
    • https://molodechno.spravka.by/go?url=https://newbubbles.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://mofokib.gfxtoolkit.com/f/12829943In PDF document text
    • http://www.casastore.ma/applications/link/1069?link=https://ohiotech.edu/sites/all/modules/fckeditor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://mejipa.theplazahotelbalanga.com/f/79398673In PDF document text
    • https://danii15pove.mpg.gg/redirect?url=https://robertrossband.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://kireraz.sharynideas.com/f/75686In PDF document text
    • http://www.blackinterracialgay.com/cgi-bin/crtr/out.cgi?c=0&l=spon_t&u=https://liqify.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://gabilon.supremainmobiliaria.com/f/2507940In PDF document text
    • http://boxing.sportedu.ru/sites/all/modules/pubdlcnt/pubdlcnt.php?file=https://uploads-ssl.webflow.com/65ffe837510d91d4bba08aeb/6635365bcd5d4f4b32933086_46839131144.pdfIn PDF document text
    • https://wtcclubmembership.coachtube.com/external/url-redirect/?url=https://termofriz.rs/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://sorikine.sentineltr.com/f/43030&e=speaker&eid=380914In PDF document text
    • https://shop-uk.fmworld.com/Queue/Index?url=https://roysbikes.com/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://juzalewumubasip.club-directory.com/f/20285124In PDF document text
    • https://lezurogasukove.oapsirs.com/39991495165504916777442521?kekubixibunariteguzovokiwilulunup=wipadimimepikerupopajigimidelimirurekazeginejigatumunusegoveputazororonujupikosopozuvibokadupapipigunowesulafopuforexenirenebegivepoxoleniwosafowozibugugupipiserepokepotosimegurafovotojudevabafitasufogatoxilex&utm_term=restaurant+server+training+guide&wiwoxuwiliwomagivanizonolegeraxofugegibomadazonalorodexafofuniwalaga=nozibaradaxalemodupemosirugosifigoxupizunovelodigefimapavuvuwumiwebapumajezozezidigaxatuwixovuvumuveriwutujusutubebajenofiwegIn PDF document text
    • http://capoeiracamara.ru/go.php?url=https://realestateindurham.com/admin/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://gonikoxemoj.palsaikbbq.com/f/62006594In PDF document text
    • https://lezurogasukove.oapsirs.com/39991495165504916777442521?kekubixibunariteguzovokiwilulunup=wipadimimepikerupopajigimidelimirurekazeginejigatumunusegoveputazororonujupikosopozuvibokadupapipigunowesulafopuforexenirenebegivepoxoleniwosafowozibugugupipiserepokepotosimegurafovotojudevabafitasufogatoPDF link annotation
    • https://lezurogasukove.oapsirs.com/39991495165504916777442521?kekubixibunariteguzovokiwilulunup=wipadimimepikerupopajigimidelimirurekazeginejigatumunusegoveputazororonujupikosopozuvibokadupapipigunowesulafopuforexenirenebegivepoxoleniwosafowozibugugupipiserepokepotosimegurafovotojudevabafitasufogatoxilex&utm_term=restaurant+server+training+guide&wiwoxuwiliwomagivanizonolegeraxofugegibomadazonalorodexafofuniwalaga=nozibaradaxalemodupemosirugosifigoxupizunovelodigefimapavuvuwumiwebapumajezozezidigPDF link annotation
    • https://okt.to/c/001zdfqdebymznk/global?r=https://uploads-ssl.webflow.com/660046df96b8dc6eecf72e3d/663537381b2096ec9c14cc99_pilamifoxixerixos.pdf&tag=Opt-machine-paperIn 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_off00084905.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00084905.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00084905.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84905 15960 bytes
SHA-256: 22c668257f96710e0b05b5cc75f73cfefc56f9485043cfe401e752b5c9dde2db
font_01_sfnt_off00087205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87205 11028 bytes
SHA-256: e925f0e7de374b5696a491c1a7a2145ef47a45a9a5e59ba18615e7572f6322d8