Malicious PDF — malware analysis report

Static analysis result for SHA-256 51514678ee83a927…

MALICIOUS

PDF

34.8 KB Created: 2020-08-25 22:07:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 030142209f42187a26ee59e1f76993c5 SHA-1: 700c356c73f231e9dd4c51768e51f5d8200d779e SHA-256: 51514678ee83a927e3eee2995ef8a690063a9fdbe700ce64368ca6481495799c
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and contains a link to a known malicious redirector. It also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The primary malicious URL identified is https://ttraff.ru/pify?keyword=dacor+wall+oven, which likely serves as a gateway to further malicious content. The document body itself is heavily obfuscated and contains the malicious URL, suggesting a lure related to 'Dacor wall oven'.

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=dacor+wall+oven In PDF document text
    • http://files.goodchoicedogtraining.net/uploads/1/3/1/3/131379830/7487867.pdfIn PDF document text
    • http://jaxokoge.evosilverstudio.com/uploads/1/3/0/9/130969060/vujexubazik.pdfIn PDF document text
    • http://files.csplash.org/uploads/1/3/1/3/131381374/3499815.pdfIn PDF document text
    • http://files.paper-scraps.com/uploads/1/3/0/8/130814715/viwivepotugun-nebamipakaki-duxiwu.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/1/0430/3749/1354/files/13088833306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6844/0232/files/contoh_soal_akuntansi_perusahaan_dagang_beserta_jawaban.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1954/3199/files/71855592467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5820/8674/files/kazebibiboguwixori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6412/1749/files/video_from_vimeo_password.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1480/7974/files/44417128561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/8921/7960/files/tugir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/catecismo_menor_explicado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0659/0104/files/malubapori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7900/7398/files/gamestop_gta_5_ps4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/adhyatma_ramayanam_tamil_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6017/3717/files/password_safe_pro_full_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1234/1416/files/16270065589.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 6

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_off00004c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C50 4768 bytes
SHA-256: b4af3521b8884bfdea8f01b01252d0ba5d3d5787f7c78f22441e053912b54c76
font_01_sfnt_off00005ca6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA6 9952 bytes
SHA-256: 5df41d6c3328edbce220a6cfc6fe7eab776d7dc7de8fed891c5e0f7d8e5e5962

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