Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ea8d63dc435b6ac…

MALICIOUS

PDF

42.2 KB Created: 2020-08-11 14:49:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 26587ea74f8714565994dbfa9b30a995 SHA-1: ba8f212f3210d78fc9093e76638a6e15dd69e821 SHA-256: 6ea8d63dc435b6ac5664d9bbe2ee321776a582424ea75a4dcac8484cdf8053f7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a known malicious infrastructure, specifically `ttraff.com`, under the guise of offering a free PDF download. This indicates a phishing or scam attempt, likely to deliver further malicious content or harvest credentials. The ML classifier strongly supports the malicious nature of this PDF.

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=mathematical+physics+by+rajput+pdf+free+download In PDF document text
    • http://files.iesagency.com/uploads/1/3/0/7/130738741/4977867.pdfIn PDF document text
    • http://files.sisterspiritwomensharingspirituality.org/uploads/1/3/2/8/132815154/58853863.pdfIn PDF document text
    • http://files.leopardpineapple.com/uploads/1/3/2/8/132815298/zidorezebage_zarilem_vuzezez_vuzanapalavag.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/1/0435/0879/3510/files/45421440429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/battery_charging_circuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6440/9764/files/5321000985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6780/1749/files/jovazirobugupazal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/jiporuzesabewowogamuwem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8334/7606/files/fibras_textiles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xodujanizovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3594/1274/files/suves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/67266214337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3551/7337/files/tipos_de_respiracion_aerobia_y_anaerobia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9387/7145/files/nursing_care_plan_for_postpartum_hemorrhage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7945/7173/files/63300230878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/83373145504.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_off000061b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B3 5812 bytes
SHA-256: 27c890400b3d527863261c829578ad9c4e232f53e948d2640e57c463779809de
font_01_sfnt_off00007565.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7565 10620 bytes
SHA-256: f83f0d86dab28c8f89856b6f4a8a0820862be96fd73041937640bedbcb66da67

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