Malicious PDF — malware analysis report

Static analysis result for SHA-256 15f1697246be33c1…

MALICIOUS

PDF

38.9 KB Created: 2020-08-06 11:50:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 94de699e55b0c6105ffb1d2635757ed9 SHA-1: b75b7a78ab03b413d615d631329392bb748a14ec SHA-256: 15f1697246be33c196ee9b96359f46090f1224ece2f3d27fa30af48de1ec50e7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to a redirector service. The primary redirector URL, 'https://ttraff.cc/pify?keyword=adjectifs+francais+exercices+pdf', is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other benign-looking PDF links, suggesting a link farm or SEO poisoning tactic to lure users to malicious sites under the guise of free downloads.

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=adjectifs+francais+exercices+pdf In PDF document text
    • http://files.gregbrownportfolio.com/uploads/1/3/1/6/131637357/3552b.pdfIn PDF document text
    • http://files.heatherwittmezzo.com/uploads/1/3/0/9/130969310/4a131d7c6.pdfIn PDF document text
    • http://files.compassclay.com/uploads/1/3/1/4/131454114/3440063.pdfIn PDF document text
    • http://files.jagregina.com/uploads/1/3/1/8/131871535/lurusut.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/1/0432/7673/0528/files/jizanorelulik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/zimesuvinobexewetigalus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/yoshi_story_rom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9234/3970/files/memivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/67111426025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1320/9246/files/55627681178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2960/2205/files/29687149336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3651/5221/files/meio_ambiente_livro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1737/1797/files/77324759108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9141/1615/files/ethernet_controller_driver_windows_xp.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_off00005a28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A28 5248 bytes
SHA-256: 8701ede476e93a0203ce17f00ccdfe086b3139d0ad819d61317bbcbd84d46dfd
font_01_sfnt_off00006c22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C22 10192 bytes
SHA-256: e3c28104f6755ff8ac0224a1161c29c60a32bdb3f96413f19580011c1b75793c

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