Malicious PDF — malware analysis report

Static analysis result for SHA-256 5169a0c78eb26eb7…

MALICIOUS

PDF

40.5 KB Created: 2020-08-20 23:15:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d5af39ae0c4f25a4305bfb69d43fd721 SHA-1: eb11bad88ade6ca6af9ad019f9da865cf5c2e558 SHA-256: 5169a0c78eb26eb7eb72702b1ef3ea611f7e679dce30547c0a4c09a8c286d6dc
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the primary malicious URL, suggesting the document's purpose is to lure users to this redirector.

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=ambala+song+masstamilan In PDF document text
    • http://files.bridgetutorial.net/uploads/1/3/1/3/131380445/tarevusijojapob.pdfIn PDF document text
    • http://vexew.spotteddots.com/uploads/1/3/1/4/131437069/3026803.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/1/0433/7149/5574/files/75521998149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9813/5966/files/kittens_game_religion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3304/2839/files/pujuvesipelipejasuratiniz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2112/2211/files/33471745190.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4143/1464/files/wisexurefus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6529/5526/files/76179701626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2536/7193/files/31279318504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7975/3121/files/55036640912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9007/6067/files/burris_fastfire_2_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/1423/8887/files/19492751663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6545/0391/files/nifuwanuzusop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4399/3238/files/fatapanupumiwamosopupogun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1415/1589/files/35362742675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3262/4808/files/gikawamewezijutumiz.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 5

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_off00005348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5348 5040 bytes
SHA-256: be1259b39c55363e06c5175d316ddf70313d09b1c4c7e4918ee32ecac73ecddf
font_01_sfnt_off00006459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6459 15092 bytes
SHA-256: ae52cf968de72c3464e5d8a695f016cd81cbc41541013a812663364d2a0ec1fd

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