Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1b3e239e4f8484a…

MALICIOUS

PDF

41.9 KB Created: 2020-08-13 22:28:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 50ba24cc0572764c99f5c39b8b518df7 SHA-1: 0305f642d3731fcda55f2c5d0140244587811491 SHA-256: e1b3e239e4f8484aaeb644f8d3749690e564c7df627c8370c411f3894e9c95ea
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. One critical heuristic firing indicates a direct link to known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=video+game+platform+definition', suggesting a lure to a malicious site. The presence of numerous PDF links, many hosted on Shopify, indicates a potential SEO poisoning or link farm strategy to distribute malicious content.

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=video+game+platform+definition In PDF document text
    • http://kedotodi.skillassoundandvision.com/uploads/1/3/1/0/131069992/pimuwum_mebelegopokuk.pdfIn PDF document text
    • http://files.toymigos.com/uploads/1/3/1/8/131856381/61b8c1a.pdfIn PDF document text
    • http://xuzoxif.jweinsteinlaw.com/uploads/1/3/1/4/131438096/8944131.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/1/0434/0318/2231/files/cpsm_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66541571973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2474/3591/files/how_to_use_airshou.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2103/2859/files/xuvizavofabajak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8794/4096/files/37203938533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/remusuwifetotusip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2201/4885/files/kovowidowixusamem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2353/1175/files/luxuworazud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/kusixinir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1804/4063/files/tugumedesobitixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gotisirifiwixi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006647.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6647 5148 bytes
SHA-256: c41d49129097132a8426bb77cdd810e4711bbab2725a8a854bdc6e63b46f9986
font_01_sfnt_off000077bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77BC 10292 bytes
SHA-256: 63a8b7a468abe1e367d54a34a6e1e31ac3be41022fe91ef1d6767f101033ceb4

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