Malicious PDF — malware analysis report

Static analysis result for SHA-256 351130dc0dc7bba1…

MALICIOUS

PDF

37.8 KB Created: 2020-08-18 20:22:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68af57280d15bb9882a48c27bd0a07fb SHA-1: 50ad3cb4bb6c80d2f6d449b999bdea014da1decf SHA-256: 351130dc0dc7bba1eb087b1b8d8513dcd2e076620d3c62a5427af98f29751235
194 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. The PDF also contains a large number of external links, as flagged by PDF_SEO_LINK_FARM, indicating a potential attempt to manipulate search engine results or distribute content widely.

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=black+platform+heel+ankle+boots In PDF document text
    • http://files.thesportdome.net/uploads/1/3/0/8/130874330/1231640.pdfIn PDF document text
    • http://tuxebediw.aaandc.org/uploads/1/3/1/4/131454762/jofeguvobekiresov.pdfIn PDF document text
    • http://kimoli.southernalbertabowhuntersassociation.com/uploads/1/3/1/4/131452883/vevano_filawesuruba_sisigemojex.pdfIn PDF document text
    • http://luzaxu.glittermesassyonlineboutique.com/uploads/1/3/0/8/130874620/razigof.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/1/0437/3417/1800/files/linksys_e1200_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8555/3061/files/fuziwexisuwefukedejaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4118/5189/files/saxejoboduma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3422/9398/files/wejaxosufigadik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/88883943705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0600/8216/files/ae_power_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0000/3747/files/separajigenanonajan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2597/2904/files/8460325991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/mefigarerumites.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7456/8860/files/bejozofutuvetozesuz.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 6

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_off00005519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5519 5508 bytes
SHA-256: e7253e16b59dcc2e4fdbb34e796f62b0898a2d48d0e104798a8d78fe6435ec14
font_01_sfnt_off000067a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67A9 10312 bytes
SHA-256: e41c9329dabb021ca9e8bdda10c3de6a6d5428319925b157feb98deb00ad8a16

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