Malicious PDF — malware analysis report

Static analysis result for SHA-256 05a7afe4c1d06752…

MALICIOUS

PDF

32.1 KB Created: 2020-08-24 07:08:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48277f1c2cb2616a81520d805971a4e0 SHA-1: 5f84eef78fb23bfc81632a8094635daf34695a65 SHA-256: 05a7afe4c1d06752c0d4e92f95bd01da8e2da88190b98849baeba966a15cb299
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector for SEO-based phishing. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. The presence of numerous external PDF links, many pointing to benign Shopify URLs, suggests a link farm designed to obscure the malicious redirector.

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=bol+ke+bol+bam+dj+song In PDF document text
    • http://pilaxuru.jackpotsportfishingcostarica.com/uploads/1/3/1/3/131379578/nositir_saxemoxif_zukosenutevodig.pdfIn PDF document text
    • http://jalinasa.wcreekoh.com/uploads/1/3/1/1/131164250/kakusiwujabexu_tadudotage_nogewete_remed.pdfIn PDF document text
    • http://files.specialdental.net/uploads/1/3/2/7/132710683/7f39e.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/1/0431/0482/9589/files/60921650116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1822/1730/files/south_african_food_based_dietary_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0306/0128/files/understanding_the_time_value_of_money.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9675/0746/files/calculus_3_final_exam_with_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/mowapawal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/81582037216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/2807/7733/files/2037809626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3947/2288/files/biology_11_textbook_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9515/4070/files/pibunulezovoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1802/6142/files/tofonalowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2726/5693/files/23004277781.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 2

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_off000042b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42B1 5376 bytes
SHA-256: 62523c915902d1f769a64f40b1dda89650890af200c3560d309793a3ae2f1da8
font_01_sfnt_off000054f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54F6 9052 bytes
SHA-256: 6a8744e940c8a84b2d3335632e16c919a014cc55d751b3b0e6dfe84cad5fe616

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