Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a917719329de739…

MALICIOUS

PDF

33.7 KB Created: 2020-08-18 19:56:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9175e1bf445e2353b235a5156feb169e SHA-1: 35d26d4c8e582f53e0b4a1fd8739f406af82ccb3 SHA-256: 7a917719329de7398d1e820aeb652c77e1764786ecb2a8cc08cbeeccc023da4c
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service that ultimately leads to malicious content, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The document body, though heavily obfuscated, contains a URL that appears to be a lure for movie downloads, suggesting a phishing or scam attempt. The ML classifier strongly supports the malicious verdict.

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=amityville+o+despertar++hd In PDF document text
    • http://files.douglascornishwebsite.com/uploads/1/3/1/3/131384777/rumimomux-xegitizebif.pdfIn PDF document text
    • http://files.thesekidshavetalent.com/uploads/1/3/1/3/131379875/ba8e8fba62b41c0.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/1/0430/2821/8010/files/dinovavexuzejebin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8368/5274/files/vofel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/5551/6570/files/bkav_pro_full_crack_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8770/8825/files/catfish_and_mandala_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4603/4853/files/87296002588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6393/5129/files/piwurezazugapadiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/73976873022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6267/3054/files/wozovorajiwuwuwatobazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6841/files/mugutop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/4150889034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3668/0102/files/9141109852.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 5

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_off000045aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45AA 5352 bytes
SHA-256: a8466a263bcbc11eab135cc2e88a7c9ebf543a619ca97ccd071fb7a58ea1905d
font_01_sfnt_off000057bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57BF 10048 bytes
SHA-256: efbe930dab0526bba1d453666f3497d1aa038041dd6a678693a3361d5f76cd21

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