Malicious PDF — malware analysis report

Static analysis result for SHA-256 8950d54f3270165a…

MALICIOUS

PDF

40.5 KB Created: 2020-08-15 09:25:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3d6618be911ef460f6ec1ac9c41762d SHA-1: ef9f7d52a4ba975589a86f452ab55ee0761b7c87 SHA-256: 8950d54f3270165a4881800ae327037ed0729f1b246d480d9790a4ae803ce929
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links, many of which point to a redirector service designed to obscure the final destination. The primary redirector URL is https://ttraff.com/wb?keyword=solitary%20reaper%20questions%20answers%20pdf, which is flagged as malicious. The document's structure and link farm indicate a phishing or scam attempt, likely to lead users to malicious content or further phishing pages.

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.com/wb?keyword=solitary%20reaper%20questions%20answers%20pdf In PDF document text
    • http://files.franklincommunityarts.co.nz/uploads/1/3/1/3/131383453/f01d6b66884721.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/1/0435/1698/5503/files/jogaxubazuxufixozalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9494/1603/files/bixitimenuresaragaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2683/3823/files/11494990337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4708/files/2005_nissan_altima_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5348/2138/files/48099973803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1610/8701/files/55370104670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9381/files/8860819306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2804/5209/files/wozesinebejuburamanisaxaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0353/files/47669540031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0555/8436/files/diatonic_arpeggios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6249/2325/files/big_ideas_math_algebra_1_a_bridge_to_success.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_off00005fa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA2 5460 bytes
SHA-256: 1e1ea374ed212cc718a790c50288873a7f68e24e7f8bc71820ed4d04e90ae6c5
font_01_sfnt_off00007253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7253 10360 bytes
SHA-256: 69bb05ed76d0cd9e1c4c173c02b9e429b022594e10b65557e91d144e5e455f31

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