Malicious PDF — malware analysis report

Static analysis result for SHA-256 e55e8034e97e3741…

MALICIOUS

PDF

43.6 KB Created: 2020-08-12 12:07:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ec9ae7db4f2c8035b5a0ba7cf3fccc4 SHA-1: 7bf586009166664eac20144b74fc20a9a67fb1b1 SHA-256: e55e8034e97e3741554b19f56e33d86a59c7713963ccd7b1d5db03d8594f89d2
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to physics problems, suggesting a lure. The PDF also contains a mass external PDF link farm, with many links hosted on Shopify, but the primary malicious indicator is the ttraff.com redirector.

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=exercicios+de+fisica+associa%25C3%25A7%25C3%25A3o+de+resistores+resolvidos+pdf In PDF document text
    • http://bozirele.needsofmany.org/uploads/1/3/1/3/131379894/peferisod-valolu-tuzixepe.pdfIn PDF document text
    • http://files.muslimahcommunitygroup.com/uploads/1/3/2/6/132682685/sokapivomixuk_nurelaxatut.pdfIn PDF document text
    • http://files.monicacarrollart.com/uploads/1/3/1/6/131606431/81755a9.pdfIn PDF document text
    • http://files.lorrieboylen.ca/uploads/1/3/1/3/131382808/9b872d.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/1/0434/3480/3352/files/kapukonub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1126/7990/files/71752890178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6065/8333/files/61575812038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4975/4519/files/synonyms_worksheet_3rd_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2552/5918/files/appreciation_letters_samples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/aprender_hablar_ingles_rapido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9664/6556/files/43681655891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4296/1570/files/encyclopedia_britannica_all_volumes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/attestation_de_prise_en_charge_pour_visa_etudiant_france.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6165/8279/files/44941282681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8899/3703/files/zefiweju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8299/7148/files/7962308425.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_off000065da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DA 5736 bytes
SHA-256: db14db3b07aebe9a7f676d48435125a2ecf92e600bc05e62184a9f37bf8f5d0d
font_01_sfnt_off0000789b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x789B 12152 bytes
SHA-256: f45915ca44fb502ffafe2b671b1059a6b12c9739043c44bda63b825af20af3db

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