Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ba323a19477b215…

MALICIOUS

PDF

47.4 KB Created: 2020-08-30 11:59:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f12e503dbdecb7508c1f32a0599a0991 SHA-1: af3caee813041437030b8bea519de1222ae47d81 SHA-256: 0ba323a19477b215cc962da44b912bab504b96c90bb55790e833fa2de80e6c6f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a redirector URL, which is flagged as malicious. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'wwe aj john cena beso'. The PDF also exhibits characteristics of an SEO link farm, with numerous embedded links, suggesting an attempt to distribute malicious content through search engine optimization. The ML classifier strongly indicates 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.cc/wix?keyword=wwe+aj+john+cena+beso In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_7184c0ae76c04ed7bf1622da833e4e82.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a382ee_3fc2525b741c491ca6a4fa56df848320.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8bbd7_b3276632fb2b4971b507ddfde41d6b2d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/ladagowoposopinaju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/5346/2183/files/decomposition_synthesis_single_double_replacement_reactions_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/albinismo_unam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5725/9420/files/72677398247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6976/files/latam_ecuador_informacion_de_vuelos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27039997465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0112/4760/files/nozove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5482/4598/files/tratados_internacionales_unam.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9c0842_c28e77a8dd384851a3e19b8229e5fece.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_fba2d7fd4ffa4bb090902dfd8f85fd70.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_fba2452068a84ca7a8008921feeaa2fe.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9c43ec_dfd8a853ed94495abb21f3fe26a2c10f.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 7

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_off000071e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71E2 5080 bytes
SHA-256: 5d612ade1ce9334feaee2ee6c4af1498683b42519c95a4a82e076a89286c6d7a
font_01_sfnt_off0000833c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x833C 1964 bytes
SHA-256: 7c4880219e9625d2a4e9dd9baa4d28a857a57833d139bcdeda5c52338edb6e7f
font_02_sfnt_off00008c48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C48 10636 bytes
SHA-256: a6b7b6cad52c30379f659538990e25721f8bb2e014d7ca97aad21a719c25f0ae

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