Malicious PDF — malware analysis report

Static analysis result for SHA-256 497417a6ea436b64…

MALICIOUS

PDF

33.1 KB Created: 2020-08-23 14:44:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5af6ed60c9d2da8c58cf6acd3cb8b91e SHA-1: 433ebdfdb4fa93e1185b9f203368e68be13cd67d SHA-256: 497417a6ea436b648a034353d22633d62ce4c605780c25ef5e40c099a7741b1d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, with the primary link directing to a known malicious redirector. The document body, though heavily obfuscated, contains the same lure text and the malicious URL, suggesting the intent is to redirect the user to a malicious site. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the malicious nature of the primary URL.

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=airline+pilot+uniform+halloween In PDF document text
    • http://rovoxelig.splashsteamboat.org/uploads/1/3/1/4/131453526/fipesoja.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/1/0428/1915/8183/files/44261657688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7928/5401/files/koxobomuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6601/5396/files/64951754105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1274/6390/files/varigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6536/0034/files/wisokomepimisemin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dusegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/8608/9109/files/integers_addition_and_subtraction_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5936/3478/files/rorakitopulixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5468/6617/files/vibobowujizasidisapimizem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/zeruwi.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_off0000475b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x475B 5044 bytes
SHA-256: 37188ff94251faa4e57309a86def3c4b507aaaa7468f7d091b9b627e083c399b
font_01_sfnt_off00005860.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5860 9276 bytes
SHA-256: 5e95c5d71cdd30d4701bf44da012496b5bb5c2674cafedafa1a88005658527ee

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