Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0702e0b2a4a6894…

MALICIOUS

PDF

351.2 KB Created: 2022-02-19 23:59:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: da2e781706bc50c914c99aefbe0d7e71 SHA-1: 50aa385709fc7a2f6d8c7d28910c7a383660bf3d SHA-256: d0702e0b2a4a6894cdac902a63f0e3a87f1c5d3a995a5a54f90a81ee632429f5
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, with a high-confidence heuristic indicating it's an SEO redirector used for phishing, disguised with a lure referencing 'Reading plus level j top secret answers'. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were extracted, the embedded URLs and the nature of the heuristics suggest the document is designed to lead the user to malicious content or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6543

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 http://proxima-design.cz/files/file/11156703170.pdf In PDF document text
    • https://refurb.onlineconvey.com/In PDF document text
    • https://rts-wm.com/ckfinder/userfiles/files/99884876179.pdfIn PDF document text
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611c629a03324---15428138029.pdfIn PDF document text
    • http://abwwilson.com/uploads/files/33473543033.pdfIn PDF document text
    • http://yilip.net/userData/board/file/futezulelajabejizanerune.pdfIn PDF document text
    • https://petek.biz/resimler/files/zuxep.pdfIn PDF document text
    • http://chayka-svg.ru/files/10599521860.pdfIn PDF document text
    • https://bursakaynak.net/userfiles/file/novepi.pdfIn PDF document text
    • http://hum-lucknow.org/test/fckeditor/file/40191714363.pdfIn PDF document text
    • http://www.ak-kresy.pl/newsysn/kcfinder/upload/files/5585015930.pdfIn PDF document text
    • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/161116c7c0fd8d---39090344052.pdfIn PDF document text
    • https://oykufestivali.com/ckfinder/userfiles/files/gosamobimunopason.pdfIn PDF document text
    • http://armanetti.com/images/demam.pdfIn PDF document text
    • http://professional-tuner.at/uploaded/file/risibuwal.pdfIn PDF document text
    • http://kubablimel.pl/Image/files/78123115175.pdfIn PDF document text
    • https://rimi.sk/userfiles/file/bevodu.pdfIn PDF document text
    • https://pharma-tools.pl/galeria/file/mofejesika.pdfIn PDF document text
    • http://saltokisport.com/uploads/files/75696919162.pdfIn PDF document text
    • https://globalcareerclub.com/FCKeditor/userfiles/file/35014776803.pdfIn PDF document text
    • http://heryeryesil.com/resimlerfiles/68404709560.pdfIn PDF document text
    • http://myhomeinparis.com/userfiles/files/10211035055.pdfIn PDF document text
    • https://alajuusa.ee/media/contents/file/44492495423.pdfIn PDF document text
    • http://a-pluset.com/userfiles/98993321772.pdfIn PDF document text
    • https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/qco9s70240bpunsvbtlou3amkj/97695009113.pdfIn PDF document text
    • http://navigator-nsk.ru/userfiles/file/58995233194.pdfIn PDF document text
    • http://zonazero.es/userfiles/file/mopikozip.pdfIn PDF document text
    • http://4bx.pl/public/file/zajexatigavebaxariguvix.pdfIn PDF document text
    • https://hamasataccessories.com/userfiles/files/tinamun.pdfIn PDF document text
    • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16105cafab9bde---645689208.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=reading+plus+level+j+top+secret+answersPDF link annotation
    • http://jsqnchem.com/upload/files/junipaxusoxonafisaf.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_off000506f0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000506f0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000506f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x506F0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00051e0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51E0B 20680 bytes
SHA-256: 121fa6dc0809e35e011a62ac711f7abcd5ed9faf675930598c0186afe5dfb83a
font_02_sfnt_off00055340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55340 11116 bytes
SHA-256: 0877a05905cb98c55ab305262a37d30c1810e59e5536f4da72475a4d40d449d5