Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4faf8d2f23065b0…

MALICIOUS

PDF

450.8 KB Created: 2022-02-04 17:10:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: d0f47270b7261b51e044fc24473d8149 SHA-1: 1f71d17305f6bd1b7553c6a4f9a4c2bd588423fb SHA-256: a4faf8d2f23065b00d7c875a6aaf8558542a20789e43708e46793b4c3415ba2b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4472

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://podar.co.za/XSRYdR1H?utm_term=fc+bayern+emblem++kostenlos PDF link annotation
    • https://abofahed.com/userfiles/file/kipetogizakizamegef.pdfIn PDF document text
    • http://isitekmuhendislik.com/userfiles/file/rowizilizisimifus.pdfIn PDF document text
    • https://hyundainhapkhau.vn/upload/files/87335481423.pdfIn PDF document text
    • https://onthespothousing.com/userfiles/file/tisidofosuferopogeja.pdfIn PDF document text
    • https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/aa5d490c2bfcaf7e50d601d0a5e36f03/17216611491.pdfIn PDF document text
    • https://walterchiropracticclinic.com/home/walter/public_html/ckfinder/userfiles/files/labilenavovudivoti.pdfIn PDF document text
    • http://rockefellersgold.hu/editor_up/37040363634.pdfIn PDF document text
    • https://www.prieur-equipement.com/ckfinder/userfiles/files/8102895648.pdfIn PDF document text
    • https://247christianity.org/fckeditor/userfiles/file/657728756891631111840.pdfIn PDF document text
    • https://kimhanh.com.vn/kcfinder/upload/files/54363140062.pdfIn PDF document text
    • http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/14206371274.pdfIn PDF document text
    • https://saikekanglun.com/filespath/files/20210909081503.pdfIn PDF document text
    • http://jakpaisanestate.com/images/upload/files/52029739311.pdfIn PDF document text
    • http://geasit.it/userfiles/files/89236761900.pdfIn PDF document text
    • https://szerokiewody.pl/files/files/limirimukipudirapa.pdfIn PDF document text
    • http://elm3rad.com/file/69739978227.pdfIn PDF document text
    • http://progettarecasa.com/userfiles/files/51194959413.pdfIn PDF document text
    • http://fese.in/ienupdimages/images/files/sitegoriwixobopatokoxeb.pdfIn PDF document text
    • http://chiesamadremarsala.eu/userfiles/files/moken.pdfIn PDF document text
    • https://lenaoyunlar.com/calisma2/files/uploads/fekaz.pdfIn PDF document text
    • https://jkmart.net/FCKFiles/File/3280659122.pdfIn PDF document text
    • http://anpamedical.com/kcfinder/upload/files/nariba.pdfIn PDF document text
    • http://bladensburg.abwingsmd.com/uploads/files/56172407247.pdfIn PDF document text
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613719df0d98b---67976545148.pdfIn PDF document text
    • https://cremyco.com/app/webroot/docs/file/56721746903.pdfIn PDF document text
    • https://energiadirect.pl/application/resources/ckfinder/userfiles/files/jamedaximukapozu.pdfIn PDF document text
    • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161aae050747ab---vinexoz.pdfIn PDF document text
    • https://hyundainhapkhau.vn/upload/files/29777054551.pdfIn PDF document text
    • http://exantusfamilyreunion.com/clients/9/96/968554593547eb574606130639276270/File/91707537084.pdfIn PDF document text
    • https://ambient-interier.cz/files/files/mefiganokizuvepowupema.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 extracted file (font_00_sfnt_off00067bb2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00067bb2.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00067bb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67BB2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000692d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x692D2 10624 bytes
SHA-256: 03797e9e190c68c8cd89e6bfb598b3ad3c3998e063a11c44a569b288efbba1e6
font_02_sfnt_off0006ab2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB2A 7556 bytes
SHA-256: b7700f8669636cf5b1c9c6c577dd96c108f8117147be3ab08f89820aa99b7ac7
font_03_sfnt_off0006c4c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4C1 21728 bytes
SHA-256: 19d2e2632c52bd282fda8a235b328a3519da6d4f2cf67e4b04fce7d7acbdf195