Malicious PDF — malware analysis report

Static analysis result for SHA-256 847ca59c161d3a6c…

MALICIOUS

PDF

336.5 KB Created: 2022-03-31 12:01:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 2bdf9fcbc6f3241a77552b06afac655a SHA-1: 21c89a853684c060f78de5afb43abe64ca7a9fe8 SHA-256: 847ca59c161d3a6cd46821489bc659c987359151c18cf0e2d952b43451cf9420
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous URLs, many pointing to compromised WordPress sites, and one specific URL is identified as an SEO redirector likely used for phishing. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically a phishing trojan. While no scripts were explicitly extracted, the nature of the URLs and the 'compromised CMS upload link farm' heuristic suggest the PDF is designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5962

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://tevav.co.za/XSRYdR1H?utm_term=merck+manual+of+medical+information PDF link annotation
    • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16223b07bd0507---26868543325.pdfIn PDF document text
    • https://simejozegedofu.weebly.com/uploads/1/3/4/3/134359486/nanujupiwovutitamul.pdfIn PDF document text
    • https://sabatti.hu/admin/kcfinder/upload/files/22356356302.pdfIn PDF document text
    • https://kinajerabisar.weebly.com/uploads/1/3/4/7/134748515/084ce7a52c5903.pdfIn PDF document text
    • http://www.2m-france.com/img/uploaded/file/66558728110.pdfIn PDF document text
    • https://dozumudokasalog.weebly.com/uploads/1/3/4/9/134902229/ac1e9bbba6e4.pdfIn PDF document text
    • http://immat.org.tr/kcfinder/upload/files/pifawulem.pdfIn PDF document text
    • https://gurekageta.weebly.com/uploads/1/3/2/6/132695257/1547620.pdfIn PDF document text
    • http://xn--80adic7alej3d.xn--p1ai/userfiles/file/kugimibodovalawuxopur.pdfIn PDF document text
    • https://rawunawikurek.weebly.com/uploads/1/3/5/9/135967659/1296148.pdfIn PDF document text
    • http://kangshi-you.com/uploads/files/202203110254559146.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1624542c3cd1e7---jujawawagitisomemutibe.pdfIn PDF document text
    • https://labuxodapiju.weebly.com/uploads/1/3/4/4/134492440/ribix.pdfIn PDF document text
    • http://dichvuhangngay.vn/uploads/image/files/89844172423.pdfIn PDF document text
    • http://lexuspolymers.com/assets/ckfinder/userfiles/files/71386303706.pdfIn PDF document text
    • http://www.cerradurasytornillos.com/gdc/kcfinder/upload/files/36106810805.pdfIn PDF document text
    • http://nuestratierrapremios.com/campannas/file/93977219249.pdfIn PDF document text
    • http://mh-gartengestaltung.de/userfiles/file/69443668082.pdfIn PDF document text
    • https://xebolusuzibukun.weebly.com/uploads/1/3/4/5/134506512/6200282.pdfIn PDF document text
    • http://ahzycw.com/upload_fck/file/2022-3-1/20220301150119933686.pdfIn PDF document text
    • https://absoger.bmv-communication.fr/uploads/files/pelabakogorivesibi.pdfIn PDF document text
    • https://www.icfost.org/public/kcfinder/upload/files/bozalonapirof.pdfIn PDF document text
    • https://dpmptsp.pemkomedan.go.id/dpmptspwebaplikasi/libraries/ckeditor/kcfinder/upload/files/meluxewezopiziguduwutudo.pdfIn PDF document text
    • https://zomimodobi.weebly.com/uploads/1/3/0/7/130739583/9020543.pdfIn PDF document text
    • https://maisonfamillesrimouski.com/scripts/php/xenocode/lib/ckfinder/userfiles/files/33532909097.pdfIn PDF document text
    • https://midubumiw.weebly.com/uploads/1/3/5/9/135989619/vagasibuxatupokan.pdfIn PDF document text
    • http://ger.versa.ru/documents/files/11602643897.pdfIn PDF document text
    • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/l0ofso76hcl35bh1lkkqj9d8o6/suvedesibewuviwinud.pdfIn PDF document text
    • https://jezagegilefu.weebly.com/uploads/1/3/4/3/134307882/wawimakuze_zurezeronevexak_vipogivijimel_kufogijuwob.pdfIn PDF document text
    • https://legunumazonum.weebly.com/uploads/1/3/4/4/134455594/9d55900.pdfIn PDF document text
    • https://refakatci.net/userfiles/file/zojonovexanigebixakir.pdfIn PDF document text
    • http://www.iece.in/userfiles/file/69169863097.pdfIn PDF document text
    • https://kexanitafax.weebly.com/uploads/1/3/0/8/130813084/7506928.pdfIn PDF document text
    • https://tijozamuworibop.weebly.com/uploads/1/3/1/6/131607374/vozewixaxij.pdfIn PDF document text
    • https://selispin.com/calisma2/files/uploads/47603883921.pdfIn PDF document text
    • http://elt-tm.uz/kcfinder/upload/files/12725028539.pdfIn PDF document text
    • https://jebezijako.weebly.com/uploads/1/3/5/9/135964749/zabifolux.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_off0004cdf5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004cdf5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004cdf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CDF5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0004e607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E607 19284 bytes
SHA-256: 557e99bcd93fdea0014cf49b2cb501efb28f76a317f3bd5de62aa376e1dc4d1e
font_02_sfnt_off00051934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51934 10652 bytes
SHA-256: 73943082e8355ac52b5621f4cedae2fac857f4cb99532d59449b6cd558993ce2