Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbdb98341591b315…

MALICIOUS

PDF

44.2 KB Created: 2020-08-19 18:10:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 276c85b807053427ac6ccbc4647b2cab SHA-1: 643ffe6ebb4383953536235ee440d399813c31c9 SHA-256: bbdb98341591b315f86053a4da6fc42bbb20cc7f153d3840cd1d217a6176c2db
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic indicates that these links point to a known malicious redirector service, ttraff.com, which likely serves to obscure the ultimate malicious destination. Another heuristic identified a link farm, with many links pointing to Shopify domains, suggesting an attempt to leverage legitimate platforms for distribution.

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=leaf+report+western+north+carolina In PDF document text
    • http://files.pinemountainchurch.com/uploads/1/3/0/7/130776645/1347146.pdfIn PDF document text
    • http://romixi.jacquelinedeangelis.com/uploads/1/3/0/7/130739616/fd4ca3.pdfIn PDF document text
    • http://lapob.brannanblascak.com/uploads/1/3/1/4/131437252/kikenupetute-goxub.pdfIn PDF document text
    • http://files.cristen.net/uploads/1/3/2/6/132680781/8879615.pdfIn PDF document text
    • http://files.speakingaboutautism.com/uploads/1/3/0/7/130740536/3fb2ba7.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/1/0428/7712/4774/files/71136824516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0582/1599/files/piano_bar_sheet_music_cowboy_bebop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/43778875991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6200/0806/files/judirudomosizerowitixalew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3765/5191/files/23525566709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/dalaran_heist_guide_priest.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4595/2408/files/kufevexobenamuzetaruju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2556/1757/files/structural_geology_map_interpretation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4062/0200/files/gutoviza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/brucella_abortus_morfologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8421/8532/files/sawodedosidisifeguriwif.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 4

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_off0000706c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x706C 5136 bytes
SHA-256: ca53e609849444905cacb1826cc44c51cd44794b3394f5c0d1c7391d23b47ada
font_01_sfnt_off000081ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81EF 9796 bytes
SHA-256: 372e8bd2b8a4ae6e068816703bfd0aa4346ce8110f4cdbd4a873e0849bc513e7

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