Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ec8b8cb20b97724…

MALICIOUS

PDF

35.6 KB Created: 2020-08-25 18:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e95b611604a248ff2e8af0142b971d3 SHA-1: 0e23539e6ccf918462d38c0d1e94683ce09bbd01 SHA-256: 3ec8b8cb20b9772436e1e0eac2f2f85b809cb6e574b7442d697674d6b260c112
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded URLs, with a critical heuristic firing for a malicious redirector link to 'ttraff.com'. Another critical heuristic identified it as a PDF link farm, with many links pointing to Shopify domains, likely to obscure the malicious intent. The ML classifier strongly indicated maliciousness. The document body text, though partially corrupted, contains the phrase 'Fringe 1. sezon indir' which aligns with the malicious redirector's keyword parameter, suggesting a lure for potentially pirated content.

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=fringe+1.+sezon+indir In PDF document text
    • http://files.thetruthstandsforever.com/uploads/1/3/0/8/130815437/vubapatemumojuva.pdfIn PDF document text
    • http://files.mectacprinstructor.com/uploads/1/3/1/4/131437740/2f469132278.pdfIn PDF document text
    • http://wutavabad.traderiverefc.org/uploads/1/3/0/7/130739059/lejisonilato.pdfIn PDF document text
    • http://files.essenceofbeautydublin.com/uploads/1/3/1/6/131637057/9362341.pdfIn PDF document text
    • http://files.spechicago.org/uploads/1/3/0/7/130775727/veduwemegowewimok.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/1/0433/3522/1403/files/guzojixepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3611/4076/files/59740686338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5293/3021/files/nuwofixekadamepaponerarud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4991/8362/files/fufifedujigefanugulevebod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5741/3270/files/80784670627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7467/3050/files/jipuketewajupomunekaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1017/6662/files/wepopam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5442/3464/files/circular_motion_experiment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7886/0454/files/95416795613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1737/9745/files/33663736933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6209/1167/files/job_interview_samples_questions_and_answers.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 8

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_off00004ed1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ED1 4840 bytes
SHA-256: c19a38d2b3d54e98eed9903c1c34a731a632704c63ba0da575e600aef0f2a457
font_01_sfnt_off00005f67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F67 10348 bytes
SHA-256: 72b67e5c095cf18843bf9bc5568885abdf2a99980e2e991fde94e336a1939e76

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