Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f8ce1b9721b153…

MALICIOUS

PDF

282.5 KB Created: 2022-02-03 17:24:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 60a2e993037a46231c2e632180333013 SHA-1: c53ffbb3c431d7e056692e71598bcab3fbb8ae69 SHA-256: a4f8ce1b9721b153e58a5b966236a77aaac65b6de3b9f0e1e06126543fc9e3e2
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5647

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://sunuf.co.za/XSRYdR1H?utm_term=serato+dj+fx+expansion+packs PDF link annotation
    • http://abb-impuls.su/kcfinder/upload/files/wugap.pdfIn PDF document text
    • http://barexkft.hu/userfiles/file/18472447072.pdfIn PDF document text
    • http://www.ztc.hekko24.pl/panel/kcfinder/upload/files/dupejoju.pdfIn PDF document text
    • http://dhf-china.com/d/files/87361044814.pdfIn PDF document text
    • https://colegiumaniucarei.ro/ckfinder/userfiles/files/4655786955.pdfIn PDF document text
    • http://0228339500.kad.tw/kads/ckfinder/userfiles/files/39224826460.pdfIn PDF document text
    • http://villaelen.it/userfiles/files/92973301742.pdfIn PDF document text
    • http://fcraregistration.com/UploadedData/file/70224715220.pdfIn PDF document text
    • https://topupdana.com/contents/files/gejetob.pdfIn PDF document text
    • http://smflow.in/admin/uploads/file/buvusuwafopefututubo.pdfIn PDF document text
    • http://eros-arena.name/eros/userfiles/file/98657134075.pdfIn PDF document text
    • http://greensquares.in/userfiles/file///79203420998.pdfIn PDF document text
    • https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160de165bbf0dd---piwibanafoxijidikej.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619da95cc485e---1775500943.pdfIn PDF document text
    • http://xn--80aesyq.xn--p1acf/files/file/89945318066.pdfIn PDF document text
    • https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/m3gu3lu5e4dqnhekicspkt9nht/fiwokut.pdfIn PDF document text
    • http://ergakiland.ru/files/files/58048345900.pdfIn PDF document text
    • https://nhuadailoan.vn/upload/userfiles/files/14758611660.pdfIn PDF document text
    • http://bakefruit.com/uploads/files/202108270017534584.pdfIn PDF document text
    • http://studiospazioambiente.it/userfiles/files/48103519041.pdfIn PDF document text
    • https://nusantarabet4d1.com/contents/files/61987836248.pdfIn PDF document text
    • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/d9e7171900a242c180d0e6048f16e1c1/wurabemaf.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1616d3b136d3e1---2771349572.pdfIn PDF document text
    • https://ibextrail.com/editor-images/xibizopokofawanaligeva.pdfIn PDF document text
    • http://garageanything.com/js/upload/files/mosutesugutejijimupixutaf.pdfIn PDF document text
    • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/3jdfianmhq25flrfi4olqh40jv/1500695750.pdfIn PDF document text
    • http://ventima.ru/userfiles/file/rosowolakawefejunot.pdfIn PDF document text
    • http://tetobox-budapest.hu/uploads/files/xeragonotagorus.pdfIn PDF document text
    • http://blog-lunettes.top-lunettes.com/userfiles/file/tixuka.pdfIn PDF document text
    • http://tanriovermensucat.com/uploads/genel/files/14635622627.pdfIn PDF document text
    • http://kokocurry.gm/userfiles/file/xaguze.pdfIn PDF document text
    • http://nirmalamathachurch.org/cms_uploads/image/file/nezegewepudabinalumefim.pdfIn PDF document text
    • http://bezagsecurity.cz/userfiles/mavunopudaz.pdfIn PDF document text
    • https://culturasiapamplona.com/guiarte_userfiles/files/55573663499.pdfIn PDF document text
    • http://sinoorchids.com/image/file/48016252556.pdfIn PDF document text
    • http://circuitoinsulargc.com/documentos/file/dekitaxutugijekabamevezul.pdfIn PDF document text
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1617307c26671d---26733792949.pdfIn PDF document text
    • http://ingmontagna.com/userfiles/files/46901664652.pdfIn PDF document text
    • https://btegypt.com/file/fiteto.pdfIn PDF document text
    • https://fima.gov.bd/public/files/assets/ckeditor/kcfinder/upload/files/winoluwesarifabuwokubuga.pdfIn PDF document text
    • https://rt9.rspo.org/ckfinder/userfiles/files/57761936788.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_off0003fc6c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003fc6c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003fc6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FC6C 10968 bytes
SHA-256: 2813cd137e547b404e5018b1f65719612af667764d77758b6f911726d080bcd0
font_01_sfnt_off000415fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x415FC 17148 bytes
SHA-256: b1d4d48be3514d1ffec5f6cb8a40118d89a8d72670bba0f93c957959cceb0151
font_02_sfnt_off00044278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44278 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9