Malicious PDF — malware analysis report

Static analysis result for SHA-256 016be286d076411c…

MALICIOUS

PDF

53.7 KB Created: 2020-08-08 10:28:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c7dd312ae7f7cbb81efea1a814b033f SHA-1: 73bd5774744b3805130c84106d029a190185c14b SHA-256: 016be286d076411c43e9570124d37d38e22bc0594f2570cbfaa0a2309c3e4008
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to a redirector service (ttraff.cc). The document body, though heavily obfuscated, contains a URL that matches the redirector, suggesting the document's primary purpose is to direct users to malicious infrastructure. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=agr%25C3%25A9ger+plusieurs+pdf In PDF document text
    • http://files.linseyart.com/uploads/1/3/1/8/131871984/8332955.pdfIn PDF document text
    • http://files.sydneyschiffdanceproject.com/uploads/1/3/2/6/132682739/ad45d3bb001d.pdfIn PDF document text
    • http://files.artistsmakeupstudiodoha.com/uploads/1/3/2/8/132814969/sotixokejo.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/1/0430/8143/3242/files/lufisolazimodifapitix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/83606779356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5335/0040/files/technical_documentation_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5949/4555/files/18978352516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7133/1742/files/xajogomefinukebatimirit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/cabanellas_diccionario.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9693/2505/files/ibn_rushd_books_in_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/32947658508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/67403749375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0360/1308/files/barepovofuvusas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7578/8190/files/89104466957.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B38 5132 bytes
SHA-256: 5be7c3d9c13fd20e19b8b76e53d0b9d6429c03d6004528fbb568afad535072fd
font_01_sfnt_off00008c7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C7F 11908 bytes
SHA-256: 310b6d99afde593876da8ecc44dd677c5bf3ab36eb8cef388cb83a1daf27428d
font_02_sfnt_off0000b206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB206 16312 bytes
SHA-256: bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939

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