Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d7223e24866c54…

MALICIOUS

PDF

95.5 KB Created: 2020-10-09 15:21:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 0c42c9e01e02ba9ccb6c16078a6c7fd0 SHA-1: 565665043c6425fac2490ba648190c6e4a130d10 SHA-256: c5d7223e24866c5432ffb64d71544c1457c0559d0a04e9a295a11bec291ad411
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://ggtraff.ru/strik?keyword=introduction+to+information+systems+supporting+and+transforming+business+fourth+canadian+edition In PDF document text
    • http://files.erinmdesign.com/uploads/1/3/1/6/131606719/tomuvof_wenajanazurenot_movuse.pdfIn PDF document text
    • http://files.kroadcottage.net/uploads/1/3/2/6/132695351/0c0e1ef7a1e246.pdfIn PDF document text
    • http://files.hamiltonswcd.org/uploads/1/3/0/8/130874050/5b3d4308ef8.pdfIn PDF document text
    • http://files.acozydeal.com/uploads/1/3/1/6/131637062/giberegavem_zurap.pdfIn PDF document text
    • http://files.goldeninnervision.com/uploads/1/3/2/7/132740930/60ba7e6.pdfIn PDF document text
    • https://site-1036898.mozfiles.com/files/1036898/morexexirodejoboxig.pdfIn PDF document text
    • https://site-1042191.mozfiles.com/files/1042191/63615137256.pdfIn PDF document text
    • https://site-1037211.mozfiles.com/files/1037211/tibopopoxegubul.pdfIn PDF document text
    • https://site-1043335.mozfiles.com/files/1043335/zaratovipajodagovedijef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6412/3814/files/dosafibekajapodezifufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4629/6982/files/church_musician_salary_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/15138177244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0649/8728/files/76312922944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/7908/4448/files/gorajuwowiduvowukovora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5686/5173/files/korean_short_hair_cat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8363/1266/files/ftc_robotics_game_manual_part_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6288/5541/files/how_to_rip_models_from_switch_games.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013688.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13688 5716 bytes
SHA-256: dd894f74efbfe5c08e7edb486ce930098940dbf20fac93fe20d64b5b12aae8ca
font_01_sfnt_off000149cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x149CF 10932 bytes
SHA-256: fb049c44297a850a990ffcbd6c43a6d4eed06276d2eb9bee4814a4a84b16b1c2

Open this report in the interactive analyzer, or submit your own file for analysis.