Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff286393329edad8…

MALICIOUS

PDF

327.1 KB Created: 2022-03-03 08:46:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: 6b823b9705aace27da8979473a538633 SHA-1: cffaaa665073d58983e3c4c77113ea22d93c469b SHA-256: ff286393329edad82b7ac8d5fb4e68f4ae212513bb8dc4c9ba6a7fd21c8641c1
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6318

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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 http://fabiocaronearchitetto.com/userfiles/files/loxinofupobagiduvu.pdf In PDF document text
    • http://agencies.opertur.com/uploaded/kcfinder/files/68603274460.pdfIn PDF document text
    • http://chaitraglaze.com/uploads/33534661231.pdfIn PDF document text
    • http://hatdesechia.com/storage/ckfinder/files/sipujejiz.pdfIn PDF document text
    • http://dorp.pl/userfiles/files/97347833089.pdfIn PDF document text
    • https://mama-light.net/business_school/uploads/file/zafoviwokumipapuju.pdfIn PDF document text
    • http://faithhh.net/js/kcfinder/upload/files/fusafedoluzotivabet.pdfIn PDF document text
    • https://icaiaa21.scrs.in/kcfinder/upload/files/bugarubofub.pdfIn PDF document text
    • http://wskinbody.com/data/boardData/files/xupipepodu.pdfIn PDF document text
    • http://tiwtactic.com/userfiles/files/58074388034.pdfIn PDF document text
    • http://cnkls.com/userfiles/file/1644036698.pdfIn PDF document text
    • https://igruppe.no/ckfinder/userfiles/files/worerusenowiwifo.pdfIn PDF document text
    • https://webmanagement.colortown.ro/images/file/jonivaminuduxesanumipesit.pdfIn PDF document text
    • http://usmleworkout.com/files/file/1145147759.pdfIn PDF document text
    • http://gearcon-eng.com/file_media/file_image/file/panixogesimizefot.pdfIn PDF document text
    • http://miass.realxenon.ru/uploads/files/83076717345.pdfIn PDF document text
    • https://mavieromantique.com/images/files/damawokawup.pdfIn PDF document text
    • http://reside-realestate.de/user_files/files/34061646672.pdfIn PDF document text
    • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161fe4139f3f1a---88197077376.pdfIn PDF document text
    • https://staging.smartmoneymatch.com/ckeditor/kcfinder/upload/files/25224533864.pdfIn PDF document text
    • http://kysciencefair.sfiab.com/data/userfiles/file/7826493806.pdfIn PDF document text
    • https://www.misuhuko.com/assets/kcfinder/upload/files/vogozemakije.pdfIn PDF document text
    • https://lockerova.eu/admin/upload/documents/komatulilatis.pdfIn PDF document text
    • http://9jamail.com/FCKeditor/editor/filemanager/connectors/userfiles/file/72200349320.pdfIn PDF document text
    • http://growlink.biz/userfiles/file/9328975503.pdfIn PDF document text
    • https://plasticosgyc.co/kcfinder/upload/files/terevafupakarowabanibiw.pdfIn PDF document text
    • https://mph.cz/upload/files/62354399921.pdfIn PDF document text
    • http://185.33.116.142/~bbyacht01/upload/files/99562625307.pdfPDF link annotation
    • http://yibetter.com/data/files/wadoxaxofesujunepolu.pdfIn PDF document text
    • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/ora6p4h78handikv9d1d2pjanm/vifolinoxexi.pdfIn PDF document text
    • http://spgcplb.com/ckeditor/kcfinder/upload/files/judizomasopuf.pdfIn PDF document text
    • http://flussobjekte.at/kcfinder/upload/files/vazup.pdfIn PDF document text
    • https://angkaindaman.com/contents/files/rogovakotuwi.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=pokemon+alpha+sapphire++citra+androidPDF link annotation
    • 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_off00049cb1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00049cb1.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00049cb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49CB1 10872 bytes
SHA-256: 87ae3522804da0b4faa24c99f8fbb3aba576f27f7b239b5d138e499821a39501
font_01_sfnt_off0004b59d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B59D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004ccb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CCB3 2832 bytes
SHA-256: 2ca454b46e139c06724d373fde9aec9f4fc1048e26351107891ac1e32466e2cc
font_03_sfnt_off0004d8ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D8CE 19820 bytes
SHA-256: 7ccb8c4a7e55b5dfce3407af1d402da86d70e735bcacacd5e780e10d42d15590