Malicious PDF — malware analysis report

Static analysis result for SHA-256 62625d6f5dc106d5…

MALICIOUS

PDF

35.7 KB Created: 2020-08-05 23:44:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0ddf0de792e6c758370fb849276fbd5a SHA-1: 7862a74ffa643137da047db0cbc8f3b6f9d14b21 SHA-256: 62625d6f5dc106d5cf2c9cc2b3c3205759b4ca2e141439b5ebb2fe7dc729682b
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document contains multiple embedded links, including one to a known malicious redirector at `https://ttraff.com/pify?keyword=medicinal+chemistry+2+notes+pdf`. The document body, though heavily obfuscated, also contains this URL and numerous other links to Shopify-hosted PDFs, suggesting a link farm or SEO manipulation tactic. The presence of a malicious redirector and the sheer volume of links indicate an attempt to drive traffic to malicious infrastructure, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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.com/pify?keyword=medicinal+chemistry+2+notes+pdf In PDF document text
    • http://files.rusticchalkdecorshop.com/uploads/1/3/1/0/131070317/4ca0dc7cdf92523.pdfIn PDF document text
    • http://files.tiffanyarivera.com/uploads/1/3/0/7/130775229/9181963.pdfIn PDF document text
    • http://files.bluemarlin3grancanaria.com/uploads/1/3/0/9/130969545/8278960.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/1/0437/5229/2513/files/nuriweja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3428/0090/files/satuxijalijep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6607/2994/files/85848966489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2756/1634/files/13013403108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/92255524386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1335/8247/files/85908711135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2669/3789/files/67440503132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/dugufakimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6333/6350/files/litumobepemenosalezazivim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5171/6503/files/tell_me_about_yourself_example.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 8

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_off00004c88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C88 5636 bytes
SHA-256: 9b428e8ef7983e10379c6ff2c32e88175c2c8515515c449fe181a86177f5a21a
font_01_sfnt_off00005f9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9C 10132 bytes
SHA-256: 4e9549a0412de8d1ed82aa1ea1fafe404d8d349e6c1d4ec326a7f182416a00ca

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