Malicious PDF — malware analysis report

Static analysis result for SHA-256 895651b88df425c1…

MALICIOUS

PDF

52.2 KB Created: 2020-08-09 22:49:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f816c774af343012cdeab2d36579309c SHA-1: 530a2a26cb574bf3bbe36f8219d224718884e530 SHA-256: 895651b88df425c1a15f3494e0b81e9066fd1eadc6937eb8b660f460b65e7514
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to redirector services designed to obscure the final malicious destination. The primary redirector URL is associated with malicious activity, and the document body, though obfuscated, contains similar URLs. This suggests a phishing or scam attempt leveraging a link farm to distribute malware or lead users to fraudulent content.

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.cc/pify?keyword=aquatic+ecosystem+notes+pdf In PDF document text
    • http://navenuwaj.xenastrategies.com/uploads/1/3/2/3/132303189/bdd0403b829e319.pdfIn PDF document text
    • http://sogajisut.design-digest.net/uploads/1/3/0/8/130873851/9589755.pdfIn PDF document text
    • http://files.dreamhighstudio.com/uploads/1/3/1/4/131407692/487ccc479fa9.pdfIn PDF document text
    • http://files.pickeringchurch.com/uploads/1/3/1/6/131606291/0560dfce6907.pdfIn PDF document text
    • http://files.mhaedc.org/uploads/1/3/0/8/130874284/tobumug_zarod.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/1/0431/0089/7440/files/reasoning_questions_for_sbi_clerk_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/vibudigurol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3841/6801/files/69457222426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0691/0887/files/nogibesel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7221/6483/files/beretta_m9_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3143/6186/files/91923849082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/timagamivubomakugotaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7591/1321/files/27554474111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5470/8389/files/89697881315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8706/9348/files/one_tech_genius.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7030/7995/files/87622616198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/poxusulijupidokubeb.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_off00008d20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D20 5388 bytes
SHA-256: cd7889cf7439aa48a08858cc06f458b552274bf0cdbad3bc078316f1e1dbfac5
font_01_sfnt_off00009f73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F73 11216 bytes
SHA-256: 0f9d48209f21cf22cf3428472c9fb58a2dc5f0078a75934dd64846a1d792feb8

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