Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b4d2eee826a1031…

MALICIOUS

PDF

48.4 KB Created: 2020-08-30 03:37:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bb18186dfc4577b41606e26f2fb7863d SHA-1: 469b1616cd20b6315dcbe941f7d0c75ae112cf7b SHA-256: 5b4d2eee826a103174650a96da127cb5173b84fdccfca1d8feba2637c6bee362
194 Risk Score

Malware Insights

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

The PDF contains embedded links pointing to a known malicious redirector, ttraff.com, which is likely used for phishing or distributing further malware. The document body, though heavily obfuscated, contains the same redirector URL and appears to be a lure related to a product recall. The ML classifier strongly indicated maliciousness, and the PDF structure suggests it's designed to mass-link to external resources, potentially for SEO manipulation or to hide malicious destinations.

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/wix?keyword=my+little+lamb+cradle+n+swing+recall In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://static.usrfiles.com/ugd/bd5c68_c9c5d8fb5498487482c40a66d7d9dc6a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_9171afc45e8b4b4cacd8a07933505dd2.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_535339157c3a470bbe0f33f86c89d5e8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0774/5958/files/xatuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41732402988.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_c74140e3b1914e63870d22d8e7cf02ed.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_bbd587d567d54cbfa75066e5bd6bfa59.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/289c5e_c29bb85be02f4c20a5e884545bfd7430.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_cf155e1798dc4d58ad38a62e6c9f8df3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/097bd5_62326d5fd4dd42409818c3b1f8e4f98f.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9725/0205/files/40765323443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0273/1430/files/ayushman_bharat_scheme_details_in_kannada.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://www.gnu.org/licenses/gpl.htmlIn 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_off00005886.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5886 5588 bytes
SHA-256: 40ed7a59e93a39a2357a6714e82246a7d8382393c541a7d084f33d2bd6126fa4
font_01_sfnt_off00006c16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C16 5596 bytes
SHA-256: c03c6e48913a4ca426b8e903c0b76105986b54582d4f497396234371732948fb
font_02_sfnt_off00007f14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F14 6640 bytes
SHA-256: eca62b72654736461a635ba366d09d794777fd95c58152d2b251becdfce657e0
font_03_sfnt_off000090b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90B1 10492 bytes
SHA-256: 71a3c14d9837f436b28e1dbf81ae7cabb820510bfdbdab87386fe08e351f4907

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