Malicious PDF — malware analysis report

Static analysis result for SHA-256 b616afb79ab41f7c…

MALICIOUS

PDF

481.9 KB Created: 2022-05-02 21:15:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: 2feb40d0bcb1e9fc3012d4ca7d84bd89 SHA-1: 260c44598d0e14bc2b21291fa0fb396b5c6de26d SHA-256: b616afb79ab41f7c34fd5107516962e30bc6265674a0f8da049715439955e2ed
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4545

Heuristics 5

  • 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.
  • 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://nesiritu.weebly.com/uploads/1/3/4/6/134612540/bigawasumafewa.pdf In PDF document text
    • http://brbud.pl/userfiles/file/38879945015.pdfIn PDF document text
    • https://verdadeon.com.br/kcfinder/upload/files/8666802989.pdfIn PDF document text
    • https://xaydungkienthiet.com/upload/files/lovutariruvubamarobufo.pdfIn PDF document text
    • https://menokatea.in/ckfinder/userfiles/files/vuvubovefopokumaw.pdfIn PDF document text
    • https://xatodibe.weebly.com/uploads/1/3/5/9/135966399/636455e9c772ce.pdfIn PDF document text
    • http://technestudio.eu/userfiles/files/bixesewarogowise.pdfIn PDF document text
    • http://bukharajohnscreek.com/sites/default/files/file/wuduwepago.pdfIn PDF document text
    • http://drironcat.com/images/file/2392503494.pdfIn PDF document text
    • https://myleague.vn/uploadfiles/kcfinder/files/fazubepaxibatu.pdfIn PDF document text
    • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/g9ehk23f81mg8dggrbj1ql7877/jozapi.pdfIn PDF document text
    • http://bearings-home.com/userfiles/file/luzaligovujatozukepevogef.pdfIn PDF document text
    • http://neodentpetrosino.it/userfiles/files/44378302670.pdfIn PDF document text
    • https://gilbertems.com/videos/file/wosiluziwusireparafalav.pdfIn PDF document text
    • http://agapetown.net/ckfinder/userfiles/files/98836853765.pdfIn PDF document text
    • http://www.parkwaytransplant.com/media_upload/upload/files/wapomubonodamesos.pdfIn PDF document text
    • https://gerasopotegovo.weebly.com/uploads/1/3/4/3/134374655/xitefoz.pdfIn PDF document text
    • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1620d2b74ef5a8---guradumeforekilowog.pdfIn PDF document text
    • https://falukanujenujo.weebly.com/uploads/1/3/2/8/132815213/japomagu.pdfIn PDF document text
    • https://arerp.kr/data/file///71080185675.pdfIn PDF document text
    • https://zefopezonokav.weebly.com/uploads/1/3/1/3/131398054/dudegakazo_zefojuxezos_pipimadadejo.pdfIn PDF document text
    • https://fofodetojadab.weebly.com/uploads/1/3/4/4/134444693/nozobugibuvud.pdfIn PDF document text
    • http://kangshi-you.com/uploads/files/202202171250514290.pdfIn PDF document text
    • http://creaorganization.com/depo/sayfaresim/file/japebajunuziv.pdfIn PDF document text
    • http://biogenetec.tw/image/files/20220307_200051.pdfIn PDF document text
    • https://sadrabfars.com/upload/files/89317886364.pdfIn PDF document text
    • https://xasatodifugo.weebly.com/uploads/1/3/4/4/134439571/888e853a0ab179d.pdfIn PDF document text
    • https://yoyep.co.za/XSRYdR1H?utm_term=fledglings+nursery+bristol+ofsted+reportPDF link annotation
    • 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_off00071537.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00071537.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00071537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71537 19432 bytes
SHA-256: d01c429f6855b3f1de1c01e0758f076731a0a4f65a39422800dbc8efbfd9e32c
font_01_sfnt_off00074772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74772 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00075f89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F89 10844 bytes
SHA-256: 0ec34eaad33fc3fbdf06d7a881368addec40476d78c333591a4a379b308054ed