Malicious PDF — malware analysis report

Static analysis result for SHA-256 886b2fcd977346e7…

MALICIOUS

PDF

41.9 KB Created: 2020-08-02 20:52:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a91fc674cb6a47aae871e94cd982965 SHA-1: f0abb94fb16c45022591e5082650f658a103813c SHA-256: 886b2fcd977346e78363dae5c1200e221a7cfb24c21e2ee4136352f266e2cdc6
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to an SEO redirector infrastructure designed to phish for information. The primary redirector URL is https://ttraff.ru/pify?keyword=rang+and+dale+pharmacology+pdf, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other benign-looking Shopify links, likely to create a link farm. The ML classifier strongly indicated maliciousness.

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=rang+and+dale+pharmacology+pdf In PDF document text
    • http://files.hesaidshesaidproductions.com/uploads/1/3/1/4/131438639/d64ad1101c7776.pdfIn PDF document text
    • http://jigaluk.charlotteturkeybowl.com/uploads/1/3/2/7/132740805/rubopuna.pdfIn PDF document text
    • http://files.urbandesignmentalhealth.com/uploads/1/3/0/7/130775747/04da9a3318c5.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/1/0431/6486/0580/files/givekotaxubeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1468/3815/files/fowowuva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6640/1692/files/dazibudafuvazutax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7529/7689/files/vogeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5612/8412/files/waxujub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2246/7740/files/ratuxevokop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8977/9106/files/77396054693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4606/7621/files/nudofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5410/3713/files/lazuxezajavof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9776/5528/files/logenolawuguxorepawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8019/7031/files/32970327478.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_off00006494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6494 5500 bytes
SHA-256: 2809a083ff300a970cfda0c8d3e83a19ef4a7902dec984c255d9fbf4d499357f
font_01_sfnt_off00007733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7733 10368 bytes
SHA-256: 859d1153502e224a6588141a704e1f279eee64f3c7412a9f7d6300bd6fd80573

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