Malicious PDF — malware analysis report

Static analysis result for SHA-256 096f437cf2423e8d…

MALICIOUS

PDF

41.0 KB Created: 2020-08-27 22:28:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f103f05e7a65ddef795db361bd2fa18d SHA-1: acb25e32a1a0eb53954ff1b4fbaf6a7af2b99eae SHA-256: 096f437cf2423e8d45ef18a22c85266b8e86147436b9b5442099ddde5e75feb7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF contains a large number of embedded links, many of which point to a redirector URL associated with malicious activity. The document body, though heavily obfuscated, contains references to the redirector and other URLs, suggesting an attempt to lure users to malicious sites under the guise of free downloads. The ML classifier also strongly indicated maliciousness.

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=eternal+mirror+divinity+2 In PDF document text
    • http://files.growingupstpete.com/uploads/1/3/1/4/131438617/folumu.pdfIn PDF document text
    • http://files.stjohnbaptistpreschool.com/uploads/1/3/0/7/130775646/baxanuvupime.pdfIn PDF document text
    • http://files.markcgarrett.org/uploads/1/3/1/3/131383613/4938918.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0497/files/vudabemavuzuzesabebesonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2940/5600/files/best_definition_of_artificial_intelligence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1974/7996/files/66026828782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9421/1750/files/48569323394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/adobe_reader_11_editor_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1778/0896/files/awdhesh_premi_video_2019_mp4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2496/5019/files/jawokokara.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000568c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x568C 4832 bytes
SHA-256: 87840004722687eb80d13150ba419b7c61b3e886d63a6e79379b707c7a54af6f
font_01_sfnt_off000066df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66DF 10164 bytes
SHA-256: e22e2ed83d7a22ec8e09c4873c50972940b77a466beda5e4d3534cf1e905452d
font_02_sfnt_off000089a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89A8 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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