Malicious PDF — malware analysis report

Static analysis result for SHA-256 f997e8c8cf397688…

MALICIOUS

PDF

281.7 KB Created: 2022-02-22 10:27:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 0cc4fcc4e25c43a5cfaa801a6ed8a7be SHA-1: 379d88097dfde1d3143dfeb6cf83f5d21a4e8457 SHA-256: f997e8c8cf3976885db2bd41108fc8bdd74867c90961a4f7640483f6d5f5df62
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7754

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.
  • 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.
  • 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.
  • 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://fecuq.co.za/XSRYdR1H?utm_term=instagram+carousel+ad+format PDF link annotation
    • http://influences-vegetales.eu/assets/Image//files/24160436667.pdfIn PDF document text
    • https://www.pkkmaluku.org/berkas/plugin/ckeditor/kcfinder/upload/files/besulap.pdfIn PDF document text
    • http://studioghittigargnano.com/userfiles/files/67051164411.pdfIn PDF document text
    • https://www.tvmreza.tv/ckfinder/userfiles/files/16246143760.pdfIn PDF document text
    • https://isuzuphonoi.com/data/dulieu/files/49526992176.pdfIn PDF document text
    • https://maxflowfans.com/userfiles/file/medajipezasolaxuwumexig.pdfIn PDF document text
    • http://westpakusa.com/phpsites/vertical_living/uploads/file/72800565300.pdfIn PDF document text
    • http://michardardillier.com/ckfinder/userfiles/files/nagafuxefirivarojufigo.pdfIn PDF document text
    • https://burgas-remonti.com/userfiles/file/96974650220.pdfIn PDF document text
    • http://mms.vru.ac.th/kcfinder/upload_new/files/7679306216.pdfIn PDF document text
    • http://cukiernia-waltar.pl/qcms/userfiles/file/luwidad.pdfIn PDF document text
    • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/c9da60cbd086e04fa6e249d195c7c531/merux.pdfIn PDF document text
    • https://club100juta.com/assets/kcfinder/upload/files/jotadarojodogog.pdfIn PDF document text
    • https://keralatemples.info/ckfinder/userfiles/files/xuguruzoruxonagis.pdfIn PDF document text
    • http://stylekd.ru/files/jijewofugugopekixan.pdfIn PDF document text
    • http://ifa-astrologie.de/userfiles/file/kapuvun.pdfIn PDF document text
    • http://emannsltd.com/userfiles/dafemijimesobapafuguseluf.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/162145498177e6---79667030276.pdfIn PDF document text
    • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1619d82c40cddf---bajogenewufosuzanasadimeb.pdfIn PDF document text
    • http://nccpindia.org/ckeditor/kcfinder/upload/files/kalumudajiz.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620dfc08089be---lovavufil.pdfIn PDF document text
    • http://amandatour.ru/js/ckfinder/userfiles/files/dikonitibomevadatu.pdfIn PDF document text
    • http://decorstore.eu/upload/file/60225493227.pdfIn PDF document text
    • https://tipresentoio.it/images/file/dojajetodotevazujijo.pdfIn PDF document text
    • http://puginternational.com/ckfinder/userfiles/files/21830437405.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_off0003f77f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F77F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00040e9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40E9A 18680 bytes
SHA-256: 87b9baec7d1d612bb8577dcaeaa134ab306ad30a292f8fed3f5570cf18ed7440
font_02_sfnt_off00043fc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43FC3 10776 bytes
SHA-256: 97fdc8e3298233eeb9a4fad24389d3b95129289ca260334968e634dc0388618d