Malicious PDF — malware analysis report

Static analysis result for SHA-256 3af5e29271b79f17…

MALICIOUS

PDF

38.9 KB Created: 2020-08-11 14:13:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3bf240b49d64c4d6eb4a43317bddb5ba SHA-1: cbfbfad95fd708fe407d8bb540f66a52c02fb859 SHA-256: 3af5e29271b79f1789f3fe21cc20fe9dde6fd3fa74f4a0797ff9097a63ef2957
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector at 'ttraff.com'. This heuristic, combined with the presence of numerous other links to external PDFs, suggests a link farm or phishing attempt. The document body contains text related to a 'Biblia de estudio diario vivir reina valera 1960 pdf', likely a lure to entice users to click the malicious link.

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=biblia+de+estudio+diario+vivir+reina+valera+1960+pdf In PDF document text
    • http://files.halechannelvideo.com/uploads/1/3/0/9/130969548/97866183e2.pdfIn PDF document text
    • http://files.triadsbesthvac.com/uploads/1/3/2/6/132696512/8450511.pdfIn PDF document text
    • http://vesakejev.rahimaferguson.co.uk/uploads/1/3/2/3/132303195/bamod.pdfIn PDF document text
    • http://files.adriennewalters.com/uploads/1/3/0/7/130739780/gozuboxetofafa.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/1/0437/8247/1837/files/41027457243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6387/5486/files/cause_and_effect_of_climate_change.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5385/8472/files/tozijudam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9521/1680/files/muxotowuwanoturof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7202/7814/files/burda_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3295/2477/files/trastornos_alimenticios_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6871/1321/files/degajaposuxawopoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2596/4949/files/your_love_brandon_heath.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4222/5831/files/93791019121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8469/3160/files/50465988460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7927/0554/files/32627987422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1379/0106/files/ncert_exemplar_class_11_biology_solutions_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/james_rollins_torrent.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 5

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_off00005346.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5346 5788 bytes
SHA-256: b88f19fcc943fc6c378023a99db34ca33af92d78de17f5d7d5d875f93bdd5d86
font_01_sfnt_off00006700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6700 11476 bytes
SHA-256: d488ed197105f9655e5bf3ff9e06b2c4b7a16c90ff852185b6a4c559cdae0066

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