Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa86667930b5ff6f…

MALICIOUS

PDF

398.5 KB Created: 2022-04-19 02:24:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 9d823f89ef7aea66b3b40807677b2957 SHA-1: bc881d0b24c875f3cd38f2e7abfe6c89eb8cd1d1 SHA-256: aa86667930b5ff6f72210a9f5d3eacfceccc17204363f75804007a238c504e11
152 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6773

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://lovig.co.za/XSRYdR1H?utm_term=diploma+applied+science+question+paper+2017+pdf PDF link annotation
    • http://kahounova.cz/userfiles/file/titumup.pdfIn PDF document text
    • https://nolenefin.weebly.com/uploads/1/3/4/6/134629259/b3de0d85a2.pdfIn PDF document text
    • https://xidolunojedi.weebly.com/uploads/1/3/1/0/131069950/fojabidat.pdfIn PDF document text
    • https://vawigaxonisas.weebly.com/uploads/1/3/1/4/131438461/4865842.pdfIn PDF document text
    • http://dreambeauty.kr/upload/fckeditor/file/livodebokanejadefepedig.pdfIn PDF document text
    • http://accuway.yun2u.com/upload/files/50307525912.pdfIn PDF document text
    • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1620be73e65ece---32656895545.pdfIn PDF document text
    • https://pacantioquia.org/aym_image/files/71906936984.pdfIn PDF document text
    • http://kaithompson.com/userfiles/file/revobutisoraw.pdfIn PDF document text
    • https://sunsetlearningcenter.com/userfiles/file/lovolajag.pdfIn PDF document text
    • http://demo-enriquemora.shopcloud.es/ckfinder/userfiles/files/tedukasuvedazejosaratu.pdfIn PDF document text
    • http://sineadstone.com/userfiles/file/moratasegisikenunejenobup.pdfIn PDF document text
    • https://loctranet.loctra.info/userfiles/file/tebezevukitoxidafamimater.pdfIn PDF document text
    • http://xn----htbccnijgu6o.xn--p1ai/kcfinder/upload/files/jukinafuzuzifokasoto.pdfIn PDF document text
    • http://scales-center.com/shop/fck_file/file/javotivigitatom.pdfIn PDF document text
    • https://u-spot.biz/js/ckfinder/userfiles/files/wagolakanososanedaza.pdfIn PDF document text
    • http://turinhotelcompany.com/userfiles/files/zemowal.pdfIn PDF document text
    • http://cuoredicane.it/userfiles/files/94636881302.pdfIn PDF document text
    • http://simsvizag.com/simsimages/file/35238980559.pdfIn PDF document text
    • https://corbitoys.sk/userfiles/file/roperisapofazame.pdfIn PDF document text
    • http://kartinatv.org/uploads/files/fubopokujirebine.pdfIn PDF document text
    • https://amc-lda.com/assets/kcfinder/upload/files/damotoveworineruzujifib.pdfIn PDF document text
    • http://agedwedfjtj.pretty-match.com/upload/files/pilimada.pdfIn PDF document text
    • https://rmp-familienanzeigen.de/cms/files/vojofafojometitopalidipi.pdfIn PDF document text
    • https://tibefuwejar.weebly.com/uploads/1/3/4/3/134332688/404891.pdfIn PDF document text
    • http://geo-equipe.it/userfiles/files/fuvaz.pdfIn PDF document text
    • https://specializzati.tecnaevolution.it/dataload/ckupload/jurotetapizanijodevodubug.pdfIn PDF document text
    • http://dnepropress.net/files/file/31808400695.pdfIn PDF document text
    • https://3territoires.kopro.fr/userfiles/file/xalirofotu.pdfIn PDF document text
    • https://mph.cz/upload/files/fusixomeseko.pdfIn PDF document text
    • http://thainightjob.com/ckfinder/userfiles/files/fukuxarepoxijivojizoj.pdfIn PDF document text
    • http://www.shriramhariram.com/kcfinder/upload/files/kemapexoruk.pdfIn PDF document text
    • http://dedanskecasinoer.dk/userfiles/file/50986305095.pdfIn PDF document text
    • http://xn--80adib9cjd8a5e.xn--p1ai/i/upload/files/72338923396.pdfIn PDF document text
    • https://volgogradexpo.ru/ckfinder/userfiles/files/3006131742.pdfIn PDF document text
    • http://insk.ru/img/userfiles/file/zuwivikowulizenowubopa.pdfIn 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005c6b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C6B7 11372 bytes
SHA-256: 835b791f95b694a4e8e6471c3f09e092e1cb5384e603d6ab99362b74eb875710
font_01_sfnt_off0005e161.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E161 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0005f973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F973 18616 bytes
SHA-256: 79fe0c7eb09d59780fcff21a6981419365a7325e98303134874e54a1b8c9ccb1