Malicious PDF — malware analysis report

Static analysis result for SHA-256 34d51e0edde3e396…

MALICIOUS

PDF

46.9 KB Created: 2020-08-20 12:41:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0357b8c7d03c54ffb5035b771a9f22b SHA-1: e9fe58132e8ec9681873942ff916b2c04bdb9bfa SHA-256: 34d51e0edde3e396dddf8ac3e312fabd3b566879d945bc93f54fd32efa566fc9
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to SEO-optimized PDF files, a common tactic for link farms and phishing. A critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final malicious destination. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the document's structure and embedded links strongly suggest a phishing or malware distribution attempt.

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=ballard+score+pdf In PDF document text
    • http://nadawu.menardcountycemeterymd.com/uploads/1/3/1/4/131406717/54ca9b.pdfIn PDF document text
    • http://jixosak.kansascitywriters.com/uploads/1/3/0/7/130738706/8241048.pdfIn PDF document text
    • http://files.storywings.net/uploads/1/3/0/7/130776567/melusabodekuzu_dobajo_pumizunibo_wunobalal.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7927/7467/files/bosch_c7_battery_charger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2410/5124/files/21838740756.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3449/9493/files/normas_internacionales_de_auditoria_interna_libro_rojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1072/7841/files/95564046918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8804/4447/files/46685675523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0509/1745/files/38057951518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1796/8543/files/www._hauppauge_wintv8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5514/4347/files/magistrates_sentencing_guidelines_drink_driving.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7628/7648/files/bizevaminopomig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5852/7397/files/40858173887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5489/0149/files/cfmoto_650_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6786/6265/files/34741869269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7902/5318/files/classical_sociological_theory_second_edition.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006db3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB3 4752 bytes
SHA-256: a3951ecf213019c5f5a477deee8af37c1f6f60f3dff847b750df143c8e9538b2
font_01_sfnt_off00007ddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDD 10060 bytes
SHA-256: 607e24d081a82d29a028fe1fa957f1e71d86d82b137015ad00576f178ee1b0a8
font_02_sfnt_off0000a056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA056 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176