Malicious PDF — malware analysis report

Static analysis result for SHA-256 08a76976bcc6a1a1…

MALICIOUS

PDF

46.4 KB Created: 2020-08-25 00:56:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06f0fbd8dce96174de254b70e4202890 SHA-1: 6b8d7c4a75f239b26f756a09397cc9662cf558a5 SHA-256: 08a76976bcc6a1a131cc78875eb23ae68c71bbb9b917aa7edaa5363a18edc44a
194 Risk Score

Malware Insights

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

The PDF file contains embedded links that point to a known malicious redirector infrastructure, specifically 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to malicious content. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics indicate it's part of a link farm designed for SEO manipulation to distribute malicious content.

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=tipos+de+riscos+ambientais+pdf In PDF document text
    • http://files.natemichaels.net/uploads/1/3/1/6/131606060/685b85.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1310/9917/files/42248373864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/magobusiriwolozun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8565/8280/files/wowowuzapokim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2614/4670/files/lolivore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9890/5507/files/reading_test_2_answers_venus_in_transit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/45114033105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0508/2781/files/vsco_mod_apk_latest_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9824/2214/files/weravozizus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6596/6754/files/vomoradatozewitusavupam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7768/8743/files/31301735971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8382/4294/files/fenefufubataxi.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 1

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_off00006768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6768 5144 bytes
SHA-256: 7021e82700fa4b2ef964872ff5d91cd93efa62ffff785da4d390ea5c8c950451
font_01_sfnt_off000078b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78B9 12648 bytes
SHA-256: 0b6972642668bc3ff975bee0bf78f395ce7771912d7972310039aeb1f72c7374
font_02_sfnt_off00009eae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EAE 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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