Malicious PDF — malware analysis report

Static analysis result for SHA-256 364566ce42bc5585…

MALICIOUS

PDF

59.1 KB Created: 2020-07-31 14:58:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 18c0032157ff3c8418cb1d9338fe82df SHA-1: b5ffd70853be3535be73d273cb024ccddea88d62 SHA-256: 364566ce42bc55851592bd6a396f075086ee4f26f46969573c3b9cadaa58685b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a large number of external links, many pointing to Shopify domains, which are likely part of a link farm designed to improve search engine rankings for malicious content. The primary malicious URL, ttraff.com, is identified as a redirector. The document body, though heavily corrupted, suggests a lure related to finding a textbook PDF, which aligns with the link farm's SEO-focused nature. The ML classifier 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.com/pify?keyword=ways+of+the+world+textbook+pdf+chapter+12 In PDF document text
    • http://files.threeaineconsultancy.com/uploads/1/3/1/0/131070125/587526f65.pdfIn PDF document text
    • http://files.buppertsfarmcsa.com/uploads/1/3/0/7/130738755/buzon-zaxiwutepew-vebes-wumuvojunozari.pdfIn PDF document text
    • http://files.natashadownes.com/uploads/1/3/1/4/131454355/5a3407158f.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/1/0430/5816/7959/files/jekixowumumawebimutumise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9886/4804/files/17316454830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8878/2236/files/sojavijixipadimiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2602/1527/files/maxukokugulemone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6274/7548/files/30274742444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89462818099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0043/0746/files/78726415334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nemubowakupupoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9950/3272/files/25558420341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0948/1624/files/54731671639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/36777894782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8027/7406/files/59100783113.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_off0000a876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA876 5540 bytes
SHA-256: 02dec4b24f254cdce9409ac0125059893a780672b94894952e6cce3383368751
font_01_sfnt_off0000bb8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB8A 10332 bytes
SHA-256: bdbd32e61ff13f7a788ad8a07a1c413092a71241dca024e08b3e362b58268939

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