Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2568f87b06f1917…

MALICIOUS

PDF

45.7 KB Created: 2020-08-04 06:51:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 95863b657858d281db25c5363e8b9359 SHA-1: b8cf2b0f45b3c40e69fec741366c8ceb17002608 SHA-256: d2568f87b06f1917889a13356a589484f628de86449fa55d42c21f2ca9345ca5
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text referencing a book title and a URL that matches the malicious redirector. This suggests a social engineering tactic to trick users into visiting a malicious site, likely for further exploitation or credential harvesting.

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=first+book+of+ansi+c+4th+edition+pdf In PDF document text
    • http://files.spirituallyfabulous.com/uploads/1/3/0/7/130776399/xogesujiragixe.pdfIn PDF document text
    • http://files.tyngsboroughpto.org/uploads/1/3/2/8/132816042/vetawolabeka.pdfIn PDF document text
    • http://files.azcofchrist.org/uploads/1/3/0/8/130813975/422d41f323ff.pdfIn PDF document text
    • http://files.mrswatsonsroom.com/uploads/1/3/1/8/131872087/fovobupanaz_puropataner_mofipujo.pdfIn PDF document text
    • http://files.itqansports.com/uploads/1/3/2/3/132303353/5213518.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/1/0436/3180/4574/files/breakdown_lyrics_j_cole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9987/9576/files/95787450790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3590/0569/files/streamline_english_destination.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9550/6592/files/tasizotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6339/1894/files/mayweather_vs_canelo_full_fight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78682713185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5013/7760/files/burger_king_kitchen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3976/0295/files/linear_algebra_3rd_edition_fraleigh_beauregard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4983/4901/files/les_neuf_quadrants_de_l_abdomen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/manual_cbx_200_strada.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_off000073c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C4 5456 bytes
SHA-256: 98236cb71c844166a5f97a8ec20a01868dcd2c65a545772a7b787e14fb0b8eeb
font_01_sfnt_off00008652.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8652 10280 bytes
SHA-256: d7de701910338ae342710e03f39122baf22fe911ced39f2f8ad1e5e559136c7c

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