Malicious PDF — malware analysis report

Static analysis result for SHA-256 0897e9592eb90b6c…

MALICIOUS

PDF

37.7 KB Created: 2020-08-02 18:20:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 95ba14cd7056df229bad39a6dbf9af4a SHA-1: 8e23eac567e8fd6bf9aa2de4899443a682fbafc5 SHA-256: 0897e9592eb90b6cad47c717ef0a27c82f1b7c2d8240d1678c7d8a20d105c54f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a lure related to 'cookie clicker 2', likely a pretext for a phishing or malware download scheme. The presence of a link farm and redirector suggests an attempt to obscure the final malicious destination.

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.cc/pify?keyword=cookie+clicker+2 In PDF document text
    • http://files.jblaw.ca/uploads/1/3/1/4/131437669/8a888b6012bbd.pdfIn PDF document text
    • http://togufa.kimberlyjamesphotography.com/uploads/1/3/1/3/131383775/situluzobitew-nusarelavutup-vobeba-kunakof.pdfIn PDF document text
    • http://files.harborimpactministries.com/uploads/1/3/1/3/131380619/jewopupudusiregokud.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/1/0435/3271/4139/files/lelezelaruxawijuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1488/1433/files/79485595191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zobuwavidojanunixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/gisiwof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jepomosojavadoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1053/1238/files/supazoginiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1969/7310/files/35780327498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/kamaposemulegup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/calculus_larson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1122/7300/files/22303779896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5213/7625/files/dikadalefevaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3754/1031/files/bizavufujisodufovez.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 4

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_off0000593c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x593C 4508 bytes
SHA-256: 3b9977b615ca3776ab50c648e342df37e1a4bb0d2e90a55898045f3554f5f517
font_01_sfnt_off0000689d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x689D 9892 bytes
SHA-256: 75b9ac68ac9366b5ad10635da78fdd3642d5646b103a2a36442b5e1c5704df6e

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