Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b2dea069e27d9e3…

MALICIOUS

PDF

66.2 KB Created: 2020-08-24 01:32:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d9c25a7720eb22aee7165998599fca3 SHA-1: b94b846cda43d229b51d35b2ba8473f9970c0c4b SHA-256: 0b2dea069e27d9e35a398880d873a5a4256669241d540cb7a2d6f95ca602d5c7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains multiple embedded links, with a primary redirector URL pointing to a "free download" lure. The heuristic firings indicate the PDF is designed as a link farm, directing users to numerous other PDFs, likely for SEO manipulation or to host further malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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/pify?keyword=bhaiya+tamil+movie+video+songs In PDF document text
    • http://files.americanartsfestival.org/uploads/1/3/0/9/130969742/kenidavatuzozekovida.pdfIn PDF document text
    • http://tewov.aatp-mysterygames.com/uploads/1/3/0/8/130814347/27e981b01ec15.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/1/0434/6177/1430/files/color_street_catalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4233/9992/files/82318051200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1715/0357/files/19650637196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1054/6070/files/effective_police_supervision_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89462818099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2127/9138/files/52726990119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1913/1285/files/40617505329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0239/4786/files/54458217339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9934/8389/files/markdown_101_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9421/1750/files/how_to_crack_a_geode.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a1f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1F1 5140 bytes
SHA-256: f782e6f4d5c915592eea2140294b69aee5880cf8e3d493c8e449fafdaf7fd992
font_01_sfnt_off0000b35a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB35A 10704 bytes
SHA-256: ae006a689d3b3d81f440ca9e675f9e87a78afd93d52ae3a5d1d2efc8c028fa5c
font_02_sfnt_off0000d822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD822 16164 bytes
SHA-256: ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8
font_03_sfnt_off0000ed3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED3B 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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