Malicious PDF — malware analysis report

Static analysis result for SHA-256 b303de580177056a…

MALICIOUS

PDF

42.5 KB Created: 2020-08-13 23:09:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a90d75fab9a27ab270bf99024cd856a9 SHA-1: dbce6a01b9c48fdb13875c753141f385ee6784c4 SHA-256: b303de580177056a0bc2d7494bb0d24bca06088fbb08cc800466eaadad3fbfe0
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing a malicious redirector link and a large number of external PDF links, indicating a link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=eclipse+shortcuts+java, which is likely used to redirect users to a malicious site. The document body contains garbled text but also includes the same malicious URL and several benign-looking Shopify URLs, suggesting an attempt to obscure the malicious intent.

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.ru/pify?keyword=eclipse+shortcuts+java In PDF document text
    • http://zanufe.alamodekabashsewingshop.com/uploads/1/3/2/8/132814930/jefuver.pdfIn PDF document text
    • http://files.shannonmcferrinfineartist.com/uploads/1/3/1/4/131438013/liwozikapewusotojov.pdfIn PDF document text
    • http://zokete.vi-vi.org/uploads/1/3/0/8/130814328/a95f82b5291.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/1/0435/5319/4133/files/equipos_de_control_de_contaminacion_atmosferica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8388/8808/files/55509450893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5815/0046/files/redol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4745/0789/files/statistical_rethinking_2nd_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2924/9694/files/python_true_false.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/72791431931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9875/8557/files/89956699707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7258/5888/files/37082280017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8499/7017/files/15453013610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6354/1913/files/prentice_hall_america_history_of_our_nation_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/girotimovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1030/7749/files/95253629350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1816/6167/files/pagawanagapivafonobaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7383/1066/files/19665752571.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_off00006947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6947 5112 bytes
SHA-256: 23d6f5193e1662f5c1a31ef5a965cbc7cebc36e8b88a2cea79674e0b9757c915
font_01_sfnt_off00007aad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AAD 10128 bytes
SHA-256: 3e4f5b1df6af3292adca2ea11bae7fa783afd560c324d785c60c0dc94644ec96

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