Malicious PDF — malware analysis report

Static analysis result for SHA-256 82a38dfbed3daa7d…

MALICIOUS

PDF

44.5 KB Created: 2020-08-14 11:13:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fb6cf925625a010ea7132e88d2c76dd7 SHA-1: b50fe72940996aa309a690a16ee1139fc6f5b8cd SHA-256: 82a38dfbed3daa7d9daaad69549220198c1fd3fe4afe9f1284ccdf631ed2b929
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (`ttraff.com`) that is flagged as malicious. The document body and heuristics indicate this is likely a phishing lure, disguised as a free download, to redirect users to malicious infrastructure. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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.com/pify?keyword=noun+adjective+and+adverb+phrases+pdf In PDF document text
    • http://netide.5islandsfarm.com/uploads/1/3/1/6/131636725/wilin-xavogo-gorikafote.pdfIn PDF document text
    • http://faxiwiw.aztardis.com/uploads/1/3/0/8/130813765/1779411.pdfIn PDF document text
    • http://files.premiumlimousines.ch/uploads/1/3/1/8/131855992/gexuf_ximotikezig_zuxegevepumos_basipa.pdfIn PDF document text
    • http://files.stjoachimorderusa.org/uploads/1/3/0/7/130739126/radis.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/1/0433/2588/2518/files/mcpe_too_many_items_mod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/5589/3928/files/short_biography_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/gapufezujakuvolegekira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7773/0455/files/81411741714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lurexemip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0654/7352/files/plague_inc_premium_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/stardew_valley_sound_effects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/2352/8099/files/pdf_astronomy_today.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9375/2997/files/que_es_el_apriorismo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8832/1435/files/sogitelerojajimos.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 2

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_off00006ef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF3 5456 bytes
SHA-256: 097fcd3f2facf111286436aaa60ae49b587dfe6217334ff9efb66f8c767412ee
font_01_sfnt_off00008184.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8184 10356 bytes
SHA-256: 5319c3e54a8b12e48cd526fa087811020b3bc2ff319b1869c11114fe65cea741

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