Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd9154aed7c7f91e…

MALICIOUS

PDF

52.4 KB Created: 2020-08-10 16:18:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4583e30f793252713d7ac3267870dd6c SHA-1: 3e663a4c7df609c2db26b300bf804c6f1414c38f SHA-256: dd9154aed7c7f91e86262547def393c7330043780add5b093517684c4974cca0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'El viaje del heroe pdf gratis' and the malicious URL, suggesting a lure for users seeking free content. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the intent to redirect users to harmful infrastructure.

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=el+viaje+del+heroe+pdf+gratis In PDF document text
    • http://files.totallyrendang.com/uploads/1/3/0/9/130969717/cedd900affdf.pdfIn PDF document text
    • http://files.terpstrasinafrica.org/uploads/1/3/0/9/130969993/f2da6238c2.pdfIn PDF document text
    • http://files.whatsnextmiddlesex.org/uploads/1/3/1/6/131606984/mobufebagosafezologi.pdfIn PDF document text
    • http://files.nhsafelock.com/uploads/1/3/1/4/131406068/cae9252026.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/1/0431/2052/5469/files/bnc_connector_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0023/3123/files/49332053560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1804/4063/files/miforafuzudutejotopozeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/xidusorogozudowazivuki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/kupasopijin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0023/3112/files/dobigexakomadesomeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5837/3542/files/73148349051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52665001447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4211/9592/files/kebifaduripozaritizolimil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9908973296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2250/0518/files/bizudigutozaminob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3500/7893/files/39852994122.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 8

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_off00007e12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E12 5080 bytes
SHA-256: 31df667bdc48d7349ce54988a4ea7d0033c8a2f9b440ee8dfdec3ccad85556d7
font_01_sfnt_off00008f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F80 11588 bytes
SHA-256: 2f5444717df1b6cc9d64a5401b65a332ff6f26f08d2d60700196b68eac1ae346
font_02_sfnt_off0000b52a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB52A 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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