Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eaef31c3a8ce728…

MALICIOUS

PDF

34.2 KB Created: 2020-08-27 22:45:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 063d633ecc2b418105cdb7f291e6e143 SHA-1: 4809b0082f31073ac186c3a8abfaeb30b541817f SHA-256: 5eaef31c3a8ce7281d1289e8f5dff0946c6871b8e10b748ead3364e2b7385402
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.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of a lure for free content, likely leading to a phishing or malware download site. The presence of many external PDF links suggests a link farm used for SEO manipulation to attract victims.

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=sims+4+cc+christmas In PDF document text
    • http://zojanop.dedethford.com/uploads/1/3/1/4/131410399/444bc6cce2.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/1/0433/4125/0714/files/camicie_nere_uniforme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5748/6753/files/64035179432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8067/9577/files/wuxapopiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3702/3641/files/mosufarunipafajutibonimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/gojotovusafew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1055/4016/files/clinical_pathophysiology_made_ridiculously_simple_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6179/5230/files/27626922217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2492/5340/files/67117506209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7028/2142/files/virufekaposogojuguza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/41487309037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3019/7925/files/red_storm_rising_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8035/8811/files/5521689998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kefemomorevogik.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 7

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_off000048b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48B0 5196 bytes
SHA-256: 527c7d1ff13643a9632db9bf3c925960cfe852e79d2644635b8e2ca581dffe15
font_01_sfnt_off00005a29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A29 10080 bytes
SHA-256: 13725dfdd9839df8124df15ae7bcef05b1438c3dedd7063536d7731340c6dfbe

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