Malicious PDF — malware analysis report

Static analysis result for SHA-256 04f1a98479126d88…

MALICIOUS

PDF

40.3 KB Created: 2020-08-09 19:10:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8212c6207135dfe34c6b79bae1f02f8f SHA-1: 55f0a2e4124ae398e33263e49685a2b560718bd4 SHA-256: 04f1a98479126d8883d62532172657169918a87892c254898eef1afd809d94f2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links designed to appear as free downloads, leading to an SEO redirector. The primary redirector URL is https://ttraff.cc/pify?keyword=adverbs+worksheet+for+grade+2+pdf, which is flagged as malicious. This pattern suggests a phishing or scam attempt to redirect users to malicious content. No scripts were extracted, but the PDF structure and embedded links strongly indicate a malicious intent.

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=adverbs+worksheet+for+grade+2+pdf In PDF document text
    • http://files.anniesatticonline.com/uploads/1/3/2/7/132740723/a65537.pdfIn PDF document text
    • http://files.gretchenjude.com/uploads/1/3/1/6/131637814/vosifuzefawuzeju.pdfIn PDF document text
    • http://files.16knight.com/uploads/1/3/1/0/131071249/pukotex_sakad_debij.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/1/0429/9040/3737/files/wosebusitav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/78255794727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5260/4319/files/50993338660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7974/6207/files/92448396144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1062/8511/files/vaworafagubex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1562/files/neroguwebigozevanesepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30106301206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/xizadibotomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/divoxikidobotitija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9776/0668/files/nejesuw.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_off00005e9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E9B 5748 bytes
SHA-256: f9f82916e842b5b8d03abee3a9592e0b60174b1cfd0123be0c1fb281cbd97451
font_01_sfnt_off00007241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7241 10072 bytes
SHA-256: 395a1995d39dd31ac2840d04bddd5dab43333edc35a75460e7b60b9dc31b2c54

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