Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8c6a87f8b9998f…

MALICIOUS

PDF

393.7 KB Created: 2022-04-26 12:52:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: b5689c8c8e6fcd8704077094f5b6031b SHA-1: e13b558f0a21f3ddcec7668528ca22de837bf61b SHA-256: 5d8c6a87f8b9998f15f1c953f5265aa29b9cfbc51b755002c8ce8edb132ea77f
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7188

Heuristics 6

  • 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.
  • 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://cafij.co.za/XSRYdR1H?utm_term=effortless+english+courses PDF link annotation
    • https://namulore.weebly.com/uploads/1/3/4/0/134017746/212dadafeaa0.pdfIn PDF document text
    • https://vamemaxodoj.weebly.com/uploads/1/3/1/4/131437173/benakarixutamur_bezumo_zonufaziwil.pdfIn PDF document text
    • http://rasciindia.com/firetech/ckupload/files/23348672131.pdfIn PDF document text
    • https://www.cvr2021.scrs.in/kcfinder/upload/files/48776775082.pdfIn PDF document text
    • http://patrickstaxi.fr/userfiles/file/nixufa.pdfIn PDF document text
    • https://fupiledur.weebly.com/uploads/1/3/4/5/134527701/labazef-wajawotujivu.pdfIn PDF document text
    • https://zitakusosexozi.weebly.com/uploads/1/3/4/5/134595565/bapojudadabi.pdfIn PDF document text
    • https://lijoliwaxodoxi.weebly.com/uploads/1/3/1/3/131398144/1219952.pdfIn PDF document text
    • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/14ecfa6e050b13b4479198d5fe096399/99146509359.pdfIn PDF document text
    • https://bireguvax.weebly.com/uploads/1/3/0/7/130775683/murifuzuzinok-vemov.pdfIn PDF document text
    • http://nrtz.fundacja-spektra.pl/upload/files/33964729883.pdfIn PDF document text
    • https://gukigosipuwerus.weebly.com/uploads/1/3/4/7/134755691/9698032.pdfIn PDF document text
    • https://gsacademy.ge/uploads/files/71829119678.pdfIn PDF document text
    • https://popetebebulexu.weebly.com/uploads/1/3/4/3/134316921/poxafatijepide.pdfIn PDF document text
    • https://kabokikofonesa.weebly.com/uploads/1/3/1/6/131637300/bozad.pdfIn PDF document text
    • https://www.journalstudiesanthropology.ro/adm/jsq/kcfinder/upload/files/63865142407.pdfIn PDF document text
    • https://nulokoset.weebly.com/uploads/1/3/4/4/134447361/5878531.pdfIn PDF document text
    • https://editionsitaliques.com/userfiles/file/76198476037.pdfIn PDF document text
    • http://belly.bpv.su/content/files/files/19569689249.pdfIn PDF document text
    • http://www.acs-pack.fr/kcfinder/upload/files/73101995172.pdfIn PDF document text
    • http://conf.gorganiau.ac.ir/kcfinder/upload/files/dobezeseruxutepijat.pdfIn PDF document text
    • https://xirofagoxo.weebly.com/uploads/1/3/4/5/134576207/xutoxotuduvekelima.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/6af1dd51b07ae1b61e41d48d98881390/kixixuravupuruf.pdfIn PDF document text
    • https://airbays.com/userfiles/file/48188087718.pdfIn PDF document text
    • https://cafesca.mx/ckfinder/userfiles/files/66781971679.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1624ba6d1a76eb---wiwuzosewudogafovoredux.pdfIn PDF document text
    • https://tatefelerer.weebly.com/uploads/1/3/5/9/135966089/bakolabikaniliniv.pdfIn PDF document text
    • http://www.forexfunction.com/ckeditor/kcfinder/upload/files/wopovowedaxukolesizipuve.pdfIn PDF document text
    • https://buvurowu.weebly.com/uploads/1/3/4/6/134638295/7150760.pdfIn PDF document text
    • http://tuzoltosagmihald.hu/userfiles/file/39557694775.pdfIn PDF document text
    • https://siemens-rozetki.ru/kcfinder/upload/files/numuduximipedojulexuxuziz.pdfIn PDF document text
    • http://gjbbang.com/userData/board/file/82207594079.pdfIn PDF document text
    • https://pearproperties.in/userfiles/file/39758654827.pdfIn PDF document text
    • http://ortosprendimai.lt/userfiles/file/tanuxipabudofapogopu.pdfIn PDF document text
    • http://snc.easy-event.net/img/uploads/files/37536681196.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_off0005b7dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7DD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0005cfef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFEF 18284 bytes
SHA-256: 9cc7b3b07ce5ccf6fa039039044307a244c72d906d520ccce84ccc76bf535702
font_02_sfnt_off0005ffba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFBA 10536 bytes
SHA-256: 1ce80f9161b6dba71b549171e603f6a91abe6dbadc1b769cc8f5d3fcf8dcadba