Malicious PDF — malware analysis report

Static analysis result for SHA-256 717f9e3ae5c54e51…

MALICIOUS

PDF

42.3 KB Created: 2020-08-24 10:28:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 333405fa4f5d04346a17c9e0cc083da9 SHA-1: 8c420ec2d5612fe86844a38d678043eae24108a7 SHA-256: 717f9e3ae5c54e51acd8e5972c3af78cc7818ca1e63f7ed7844875b2d1b956b2
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, all pointing towards a phishing lure. The document body, though heavily obfuscated, contains a URL that redirects to a malicious domain, likely to download a second-stage payload. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ttraff.cc/pify?keyword=kindle+file+format+convert+pdf In PDF document text
    • http://povuwidu.theletterkstore.com/uploads/1/3/2/6/132681337/2289834.pdfIn PDF document text
    • http://fevoki.nourishbodymindspirits.com/uploads/1/3/1/4/131406821/monogasu.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/1/0431/2216/3876/files/59104975412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4931/2666/files/bulusadabawiruzaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9956/9829/files/xagebopikarigawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8865/7049/files/kamiguxigonaboguvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3928/4645/files/ruwoxalideseziwabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7013/6220/files/53336561505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4519/9777/files/fesexirufan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/calidad_de_vida_laboral_en_colombia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3850/6146/files/ouran_highschool_host_club_episode_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8508/6374/files/blast_furnace_maintenance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9456/5271/files/nordick_track_a2550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5025/1941/files/nulowedaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6791/5936/files/charminar_express_platform_in_secunderabad.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006880.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6880 5152 bytes
SHA-256: 83afd7d709b73bd243ef87621bdefb2a00783e04098e4e8ea92a23b8febaa56a
font_01_sfnt_off000079f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79F0 10120 bytes
SHA-256: 2a93e3bcee3b8766405ce626cf149fb08fd8d473fec70df176f80598390da52a

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