Malicious PDF — malware analysis report

Static analysis result for SHA-256 713bd319c023106b…

MALICIOUS

PDF

46.2 KB Created: 2020-08-18 22:18:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 35ce4d02387056ded05268c94ab1c2f0 SHA-1: b22b1d235dfd854e27e96185571fb53f0c1c845a SHA-256: 713bd319c023106bb5747f38eda28911b0009bae8948edec9cd500f01aef3609
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to SEO-optimized pages designed to lure users with book titles. A critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=capitalismo+socialismo+y+democracia+pdf'. This suggests the document's primary purpose is to redirect users to potentially malicious sites, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=capitalismo+socialismo+y+democracia+pdf In PDF document text
    • http://files.tulibro915.com/uploads/1/3/1/3/131398504/lazularerir-lokogotulek-moduv.pdfIn PDF document text
    • http://files.z-emotion.com/uploads/1/3/0/7/130740522/8261722.pdfIn PDF document text
    • http://pamape.vignericandleopera.com/uploads/1/3/2/6/132681352/vuvifipe.pdfIn PDF document text
    • http://vutiga.diversitypractitioners.org/uploads/1/3/0/7/130739206/8887768.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/1/0441/4029/8392/files/analytical_chemistry_by_g._d_christian_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2541/3782/files/ashrae_standards_handbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/21951228821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5240/0789/files/email_formal_en_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3116/7137/files/bamarugepumutoduk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/vowobawezozos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/memibumemogurab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/ammonium_sulphate_precipitation_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3595/9191/files/duzifesozup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0036/0094/files/lawesamojegewapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2222/9397/files/deux_arabesques_free_sheet_music.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 8

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_off0000734d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x734D 5308 bytes
SHA-256: b11af94b4636dff5ce83e880eebc444cb3548ed74a69855e80c15a434a3aade1
font_01_sfnt_off0000854a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x854A 11336 bytes
SHA-256: 17fbe28501d20d26971e7084efc9a459815ee1992a1e7f440412eee4d90c7821

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