Malicious PDF — malware analysis report

Static analysis result for SHA-256 af28db0a9c5ca2ca…

MALICIOUS

PDF

258.4 KB Created: 2022-03-25 15:50:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 9507d110c11060f02f1b1d1b4cd5ff45 SHA-1: 98490ba2adac16ac2afa83da048b824a31219dbe SHA-256: af28db0a9c5ca2cadc52e929152d5f96ed7b57b81043fd5fca83d76cddab2e0b
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7466

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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=chinnari+pellikuthuru+serial+in+telu PDF link annotation
    • http://findusafranchise.com/files/files/33944477427.pdfIn PDF document text
    • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/e6t1lo0mlpvi7losu61s956n25/27824121020.pdfIn PDF document text
    • http://lev-steklo.ru/userfiles/file/33722284358.pdfIn PDF document text
    • http://pphjako.pl/userfiles/file/busiredafanegopef.pdfIn PDF document text
    • http://bannermaul.com/userData/board/file/luxuraradunaziwuri.pdfIn PDF document text
    • http://beslenkofte.com/panel/upload/files/joxaxibitalif.pdfIn PDF document text
    • http://arborspringsforestry.com/img/files/monejabilimujesenibek.pdfIn PDF document text
    • http://bloodfaces.de/attachment/file/95382750028.pdfIn PDF document text
    • https://web-idea.ro/app/webroot/files/userfiles/files/53546752671.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1620838dbd3944---jipimapi.pdfIn PDF document text
    • https://edcasys.com/ci/userfiles/files/9186782396.pdfIn PDF document text
    • https://accuratesearch.com/userfiles/file/wojisix.pdfIn PDF document text
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/162310936a7703---38000266596.pdfIn PDF document text
    • https://altsovmun.ru/userfiles/file/dafab.pdfIn PDF document text
    • http://urdu-hadith.com/survey/userfiles/files/83542493694.pdfIn PDF document text
    • http://princeverma.in/uploads/files/93987150223.pdfIn PDF document text
    • https://find-domain.lazy-online-shop.com/app/webroot/userfiles/files/kosegaluzes.pdfIn PDF document text
    • http://veewood.com/file_media/file_image/file/kipuwelu.pdfIn PDF document text
    • http://norilsk.torbay.ru/images/uploads/file/98216988430.pdfIn PDF document text
    • http://jian-yuan.com.tw/kcfinder/upload/files/bagamozibamo.pdfIn PDF document text
    • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/d3f01d638481f820b098d86238d27ce7/nonux.pdfIn PDF document text
    • https://suprizpin.com/calisma2/files/uploads/lopojokemesukukefobebep.pdfIn PDF document text
    • http://conganbacgiang.vn/app/webroot/uploads/files/15907304547.pdfIn PDF document text
    • http://ruresept.ru/files/file/gegepak.pdfIn PDF document text
    • http://gazetavk.ru/img/file/38854047209.pdfIn PDF document text
    • https://cantellodetersiviprofessionali.it/uploads/file/mugeza.pdfIn PDF document text
    • http://yokosohk.com/files/fckfiles/file/48487962333.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1622ef31232674---15898809242.pdfIn PDF document text
    • https://gulamanis.com/contents/files/28381991322.pdfIn PDF document text
    • http://pastadimatteo.com/ckfinder/userfiles/files/65281541712.pdfIn PDF document text
    • https://vivaldiroberto.com/img/files/mediafiles/file/xevakejosiwubol.pdfIn PDF document text
    • http://holflorstudio1.cz/upload/files/nupebosopo.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16204c3bd11cf8---tasaderab.pdfIn PDF document text
    • http://tamtamphat.com/upload/files/62680742495.pdfIn PDF document text
    • http://dc-a436c1f93717.abmextranet.com/fckimages/file/12449352621.pdfIn PDF document text
    • https://www.tocarufar.com/sgc/Assets/Plugins/CKEditor/kcfinder/Uploads/files/zemagisaw.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_off00039a06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39A06 10452 bytes
SHA-256: 6a29541f4c7c152f58fc48b258c496da6025e296b64b8754ba2f76c7620cc26f
font_01_sfnt_off0003b1ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B1AC 19616 bytes
SHA-256: 6ebd05d9632e79d9c7ebd804b78bc8c698c227d45d464e257d0d2c8f2376d00f
font_02_sfnt_off0003e2d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E2D0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9