Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7db586f76bbf86d…

MALICIOUS

PDF

35.0 KB Created: 2020-08-24 17:05:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6cff238701b6f2842806195f6015448a SHA-1: 40c3540f02ab582a4cd445939c72e7c73914de30 SHA-256: b7db586f76bbf86d5a44b8b1ea0db0021e267896a609ae51cc80c318502a121d
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with a critical heuristic firing for a PDF link farm. One of these links, 'https://ttraff.cc/pify?keyword=barter+6+free++sharebeast', points to a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a lure to external content. The primary intent appears to be redirecting users to malicious infrastructure.

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=barter+6+free++sharebeast In PDF document text
    • http://nulan.holytemplec.org/uploads/1/3/0/7/130776321/301983.pdfIn PDF document text
    • http://albumbustle.com/leaked-young-thug-barter-6-full-album-downloadhttp://albumbustleIn 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/1/0430/9758/7861/files/80091533633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/24345823961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40313354442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2095/1450/files/31344828914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0098/7811/files/arquitectura_renacentista_espaola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6681/7689/files/2143256499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6564/7012/files/61954977229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0354/6533/files/apneia_do_sono_e_obesidade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5342/4540/files/buzenugorutam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2017/9864/files/98545485741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7351/2359/files/nokemevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0682/8441/files/29471845579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9304/0029/files/23173448927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9442/4232/files/biomaterials_for_tissue_engineering_applications.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 6

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_off00004b81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B81 5164 bytes
SHA-256: 911a9918338ba814d8d1195a05d8ff9b42b9e876296ea82031a8a26a64ec018f
font_01_sfnt_off00005d0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D0B 10048 bytes
SHA-256: 4707c4202ec16ae19d1bd403ac8445dbe36a92bd96ca5ff2786df88fdd9fe285

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