Malicious PDF — malware analysis report

Static analysis result for SHA-256 02e5d19a57fd4494…

MALICIOUS

PDF

41.5 KB Created: 2020-08-03 15:22:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 405f23b039a7d61a982a29d4ff266b06 SHA-1: bb79618b56ea0b4ee3f01ade51a75376af33a153 SHA-256: 02e5d19a57fd4494c42ca8c5bcdf3fe0cf9d7e6806bf5ada4545ab1802a6b16d
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, `https://ttraff.cc/pify?keyword=wings+of+fire+book+in+kannada+pdf+free+download`, designed to lure users into downloading other PDF files. This is a common tactic for distributing malware or conducting phishing attacks. The ML classifier also strongly indicated maliciousness.

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://ttraff.cc/pify?keyword=wings+of+fire+book+in+kannada+pdf+free+download In PDF document text
    • http://files.melissahaneyart.com/uploads/1/3/0/9/130968981/7239708.pdfIn PDF document text
    • http://files.kumacorp.com/uploads/1/3/0/8/130874170/5f78bd36.pdfIn PDF document text
    • http://files.tyeetonga.org/uploads/1/3/0/7/130739883/533841.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/1/0433/4908/2264/files/welusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6993/9612/files/webuxotetigibelegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7508/4193/files/50873362774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1409/2960/files/sift_heads_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7954/8574/files/baritusuwumomegixib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vidabuvuwegorowomilamum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1338/9992/files/37365216095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3520/4511/files/fighting_sound_effects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/naxenisugivuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0623/7604/files/96783446919.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_off000063cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CC 5516 bytes
SHA-256: d707370a5bbe7455909f6606b836723dbe81d4012a3cb0757af93125e0d9672d
font_01_sfnt_off000076bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76BD 10088 bytes
SHA-256: 46d9e7e3d65b75bb2d0e07e6f35e0b7c9f7b95cfd78bc829f091f09d18f42d36