Malicious PDF — malware analysis report

Static analysis result for SHA-256 477cd98fef8325fc…

MALICIOUS

PDF

39.8 KB Created: 2020-08-18 17:33:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 37e594194f57d7d4904ded9528460d3b SHA-1: ed84ebe3615b364df444db54d8dd87938b0d3609 SHA-256: 477cd98fef8325fcb4d73f36631947f120a5938e36147a4c46b98498e9ca5619
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=pokemon+amaryllis+gba+rom', which is also listed as a malicious redirector. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a link farm designed to attract traffic or SEO manipulation, ultimately leading to the malicious redirector.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=pokemon+amaryllis+gba+rom In PDF document text
    • http://pexadew.destinyeve.com/uploads/1/3/0/7/130738748/2731444.pdfIn PDF document text
    • http://files.sgbc.net/uploads/1/3/1/3/131379296/wawenajamasoxumuzexi.pdfIn PDF document text
    • http://files.inkandscribbles.co.uk/uploads/1/3/0/8/130813796/zidij_pinenejomegax_totex.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/1/0431/3962/9218/files/11507032908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1961/4882/files/73564544822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0850/3456/files/catalogo_de_cuentas_de_un_hotel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5299/8556/files/zupufasukimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2021/2645/files/mtga_launcher_invalid_command_line.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1605/2123/files/maths_worksheets_year_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/53071375224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8935/3117/files/36764713977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0894/0441/files/strategic_marketing_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6562/9077/files/san_diego_craigslist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3874/4469/files/artificial_intelligence_4th_industrial_revolution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2388/2645/files/macromolecules_worksheet_high_school_biology.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_off00005bc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC0 5312 bytes
SHA-256: e35d20c734bc4f247ae65e75d4a4a398a966d15091a013ddd48a21ee9ef88436
font_01_sfnt_off00006dbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DBF 10368 bytes
SHA-256: 2ca98ae36a21b323f0ed5654f9120bda8e5e055dfa470af5bd11094a1a48a9ad

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