Malicious PDF — malware analysis report

Static analysis result for SHA-256 f280bc8717eba433…

MALICIOUS

PDF

43.2 KB Created: 2020-08-19 03:51:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d32c31edb24c44ceba90b3cfc2217654 SHA-1: 5f7bc673e377e225918f273c0766cd39ae6489be SHA-256: f280bc8717eba433b1688924c7af84e11427180268296e53410622101a106cc6
202 Risk Score

Malware Insights

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

The PDF contains a lure for a 'Cartoon hd app for laptop' and embeds a mass of external links, many of which point to shopify domains hosting other PDFs. One critical heuristic indicates a link to a known malicious redirector, ttraff.com, which is likely the primary payload delivery mechanism. The document body is heavily obfuscated and contains embedded URLs, reinforcing the malicious redirection attempt.

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.com/pify?keyword=cartoon+hd+app++for+laptop In PDF document text
    • http://notuputot.naturalfoodsofkearney.com/uploads/1/3/1/8/131856543/8014392.pdfIn PDF document text
    • http://files.neoshoalumni.org/uploads/1/3/1/4/131453045/37c551.pdfIn PDF document text
    • http://files.kengoesclick.com/uploads/1/3/1/8/131858592/9358853.pdfIn PDF document text
    • http://files.cynthiakgoeller.com/uploads/1/3/2/7/132712508/861155398e5.pdfIn PDF document text
    • http://files.thealbertaroseschool.com/uploads/1/3/1/4/131437584/78dd8d05ec13e82.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/1/0434/3863/7208/files/sort_values_pandas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3119/1975/files/mezabejexatojotaliberoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6224/8095/files/minecraft_nuke_mod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5764/2648/files/convert_to_word_doc_adobe_reader.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3886/6593/files/powunenerakafonen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7352/files/79587262457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5562/1031/files/velerenuxorilojoderivufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7577/1304/files/zapefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vidabuvuwegorowomilamum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2091/7668/files/guide_taille_ceinture_diesel_homme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zadolodiwifunum.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_off00006d39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D39 4856 bytes
SHA-256: 0e55a724384647f054a3286f8dbdb357c226513552a0a3d872d83bc7bc668905
font_01_sfnt_off00007db1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB1 10020 bytes
SHA-256: 393c2b25299a0bf78b213575f9b09e408cc00942118e6ba49ebce21b24624e49

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