Malicious PDF — malware analysis report

Static analysis result for SHA-256 3002019fb99424fc…

MALICIOUS

PDF

37.2 KB Created: 2020-08-04 16:40:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 947c9f500e89023e85fa0bbfef42d485 SHA-1: 2f1d20a824cb13a738e7db8e0d97272b092fb916 SHA-256: 3002019fb99424fcbdbde0190d5a85f2ca45c445d97ab800c85c8a352e05c2cf
202 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is further contextualized by the document body's attempt to disguise itself as an English grammar exercise. The presence of a download button heuristic reinforces the social engineering aspect of the lure. The primary malicious IOC is the redirector URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=prepositions+of+place+exercises+pdf+perfect+english+grammar In PDF document text
    • http://files.satindollsbundles.com/uploads/1/3/1/3/131381804/wilaweratowuw_wiremejat_budefu_dulip.pdfIn PDF document text
    • http://files.conresnet.org/uploads/1/3/1/4/131437657/bujetimonufigemipiz.pdfIn PDF document text
    • http://files.pellandconsutling.com/uploads/1/3/2/6/132681836/6417755.pdfIn PDF document text
    • http://files.bandsourceproductions.com/uploads/1/3/1/4/131408209/venituxixiwuvaw.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/1/0428/9835/8432/files/norojakibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3658/0759/files/71037279370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/merewazamex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0360/0283/files/nalejifekidafokufowetuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5989/5717/files/39825892241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4678/0566/files/kibipoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9940/5977/files/20429937908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1384/0794/files/84977477067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3365/7507/files/xebosiwijozurev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8674/0646/files/gatufiruxabupaf.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_off0000526e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x526E 5640 bytes
SHA-256: 6ddb23e6e7552e90c8dd85b3a837ebdba037cc99fac51bda57f9e65033055be2
font_01_sfnt_off00006575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6575 10060 bytes
SHA-256: 791aef441726341d4d8a39ad37da8694aa3fd3f1a4d86c449b332ac5489db083

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