Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b0a078396e3e8d1…

MALICIOUS

PDF

65.1 KB Created: 2020-08-20 02:56:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 130149ef5af2283da7b3e8fb597b0e6c SHA-1: ce2e98bd0e88697f1319bf206d7639415bd68678 SHA-256: 9b0a078396e3e8d16c1e482fd50e82cc0c694afa6c62618b35377b9b4357f9b7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised with a medical guideline keyword. The ML classifier strongly flagged this PDF as malicious. The presence of numerous embedded links, many pointing to Shopify domains, suggests a link farm or SEO poisoning tactic to distribute malicious content. The document body, though heavily obfuscated, contains the same URL as the malicious redirector.

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=hypertensive+emergency+guidelines+jnc+9 In PDF document text
    • http://xofote.amcirealestate.com/uploads/1/3/0/8/130874523/9d016b5df04.pdfIn PDF document text
    • http://jutopabuv.mogulmeadows.org/uploads/1/3/2/7/132712315/594cfcd7ee0f7d3.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/1/0431/3228/9180/files/tadilunolevoxagidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/apresolina_50_mg_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1514/2551/files/john_deere_lx188_manual_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0382/9657/files/warrior_tank_talents.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1174/2628/files/jugolivivuxaxaxokisened.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7508/4193/files/zatil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1792/0934/files/ximipagunemapowunodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/meditech_user_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4216/1319/files/97445031435.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c1ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1AE 5540 bytes
SHA-256: f541d63fee1dbfb45b97eb0b05d2848ab44a961fee742611572eb4a055653340
font_01_sfnt_off0000d47d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD47D 10140 bytes
SHA-256: f53c878c574a4753470b6cb897484dab18fdca5ccacdf9c1e9ea35767126eabf

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