Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ebbd7c665af536…

MALICIOUS

PDF

39.1 KB Created: 2020-08-19 07:17:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: baa5157b116f588078c582033b8213a7 SHA-1: c5162853a394bf8828599d81267af3942a485a1f SHA-256: e9ebbd7c665af53635a95ec3f417e209c08d6ac5d61b8db78ebbe2ec24042030
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com and redirect to malicious infrastructure like ttraff.ru. This indicates a social engineering attempt to lure users to malicious sites under the guise of providing educational materials. The ML classifier also strongly flagged this PDF as malicious.

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=six+kingdom+system+of+classification+worksheet+answers In PDF document text
    • http://files.rangerrodgun.com/uploads/1/3/0/8/130873951/posofuzuwekewavexu.pdfIn PDF document text
    • http://files.magnificentheavens.com/uploads/1/3/1/6/131606453/rugurezazokun.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/1/0432/9681/7312/files/xababopevogavetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/multivariate_data_analysis_seventh_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1003/5609/files/because_he_lives_guitar_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2945/7064/files/the_v_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3229/0215/files/76263387934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4513/3207/files/96943898110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26443777516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8362/7686/files/wokazexigisevebivom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6200/0806/files/inpatient_psychiatric_treatment_plan_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6426/2818/files/12088125902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6766/0706/files/69798062893.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 2

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_off0000589f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x589F 5864 bytes
SHA-256: 42a751d69877a824933545a716bd128a8159c275cf3404a2d789a5cad047651a
font_01_sfnt_off00006c7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7D 10588 bytes
SHA-256: 30cc276e33c4cf0f69375c996585073196f9f95197a63002cb7d45d892c42c90

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