Malicious PDF — malware analysis report

Static analysis result for SHA-256 fab816b80d9c0d5e…

MALICIOUS

PDF

260.3 KB Created: 2022-02-06 23:21:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: f23cad68bb23abf80f4ac7ea68cbf915 SHA-1: 20422817f3ee99911aef775826da9a32f8af05bf SHA-256: fab816b80d9c0d5e1375ada44f47ed36384d0e7808afaffff3bd23be8180455b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8006

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://mifuj.co.za/XSRYdR1H?utm_term=gmail+log+in+android PDF link annotation
    • https://bakkerijkamstra.nl/userfiles/files/52647217437.pdfIn PDF document text
    • https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/3535e44dd34e9538d89e1f9e72f0b00a/sunam.pdfIn PDF document text
    • https://fancybox.pamlskovnik.cz/ckfinder/userfiles/files/28181020982.pdfIn PDF document text
    • http://karpatskiles.ru/store/files/96251774981.pdfIn PDF document text
    • http://kamkmori.cz/ckfinder/userfiles/files/tinigikiriguretewogibulij.pdfIn PDF document text
    • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ddd41e96ae8---lategetupixemofujemovo.pdfIn PDF document text
    • http://noithatphathuy.com/Images_upload/files/71011958277.pdfIn PDF document text
    • http://www.ortodonciaelisafarache.com/ckfinder/userfiles/files/72964178208.pdfIn PDF document text
    • https://oxi-dental.ro/imagini_ws/lufiterupujujazem.pdfIn PDF document text
    • http://ctm.it/userfiles/file/divamuxonagux.pdfIn PDF document text
    • https://korovin.org/site/img_ufiles/dulajuvu.pdfIn PDF document text
    • http://vitalbafitnessclub.eu/userfiles/files/89124219468.pdfIn PDF document text
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/59c743d13f41e651fc0930dba19aa8da/86867044667.pdfIn PDF document text
    • http://koralky.pokladnicka.cz/userfiles/file/gebibuvaxuzedunaxig.pdfIn PDF document text
    • http://xn--80aafkatcapceshpicpg3h.xn--p1ai/pict/file/39476616309.pdfIn PDF document text
    • http://bibliotekaludwin.pl/img/upload/files/75495471513.pdfIn PDF document text
    • https://www.traitagri-solutions-alternatives.fr/ckfinder/userfiles/files/69476079233.pdfIn PDF document text
    • http://huabulaw.com/uploadpic/2021-12/file/2021122900580873499.pdfIn PDF document text
    • http://bajkolandia-leszno.pl/userfiles/file/refaxopevilitawuzavajirum.pdfIn PDF document text
    • http://uniquehotelsolutions.com/files/others/11170336606.pdfIn PDF document text
    • https://xnkvinatimex.com/uploads/files/divanizefofiviluvemitara.pdfIn PDF document text
    • http://datong-travel.tw/upload/ckeditor/files/20210811021339.pdfIn PDF document text
    • http://jiab.net/userData/board/file/11458744848.pdfIn PDF document text
    • http://1yunnan.com/ckfinder/userfiles/files/fudekobuvagutika.pdfIn PDF document text
    • https://balatonfurediallatorvos.hu/userfiles/file/9526739956.pdfIn PDF document text
    • http://xn--90afqerdlt1f.xn--p1ai/admin/ckfinder/userfiles/files/raxaxenopimexurajasujabam.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_off0003a893.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003a893.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003a893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A893 10232 bytes
SHA-256: 6e63a4c70403714a395e2bfb5beb8b3c007d5df5e28aaf0b46914638427f795e
font_01_sfnt_off0003bf39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BF39 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003d654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D654 17316 bytes
SHA-256: a705d50186946d065ac23778bc97e7e521906941faaaf460ed343df37d9cd7da