Malicious PDF — malware analysis report

Static analysis result for SHA-256 21f2f1d9eaa8f005…

MALICIOUS

PDF

35.6 KB Created: 2020-08-24 03:10:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ee051fd53294e586b82cbac4d27926c SHA-1: a0cb940c0e8e05fceb3854bbb0c3665737ae6908 SHA-256: 21f2f1d9eaa8f0059250a733af0f594294118c61d71899129c4a3d3e3dee8bf0
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector URL. The document body, though partially corrupted, contains text referencing 'Final Fantasy Lightning Returns guide pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.

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=final+fantasy+lightning+returns+guide+pdf In PDF document text
    • http://files.bacspto.com/uploads/1/3/1/4/131453998/8636046.pdfIn PDF document text
    • http://files.rainbowdesign.store/uploads/1/3/1/8/131871734/59900f0c0.pdfIn PDF document text
    • http://files.makeupbysarahe.com/uploads/1/3/1/4/131406841/157a8efeb9a27d.pdfIn PDF document text
    • http://buganezub.camusicboosters.com/uploads/1/3/0/8/130814017/5315938.pdfIn PDF document text
    • http://files.empoweringlivesnow.com/uploads/1/3/0/7/130775462/guwidona-regevifuxaxog-pukokaporivob.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/1/0433/9925/0081/files/73042927422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7348/files/vinaloxowenutagafopozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0188/8416/files/mojatafugozonusavuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3337/0529/files/59175051441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1822/2753/files/avg_mac_os_x_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7694/3000/files/38464204621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8231/7991/files/66665153342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9617/8849/files/2011726658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7211/1260/files/ics_700_answers_fema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9769/9992/files/7680965087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6640/0663/files/kozekefigekofalalimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9937/4233/files/business_plan_sample_for_supermarket.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C40 5360 bytes
SHA-256: 95a052d55fe13ba3d39fb61403d54f421279c93953657b67fe13b6b422313abe
font_01_sfnt_off00005e76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E76 10200 bytes
SHA-256: 262e48dcb15be4f648a6b2ceb7c5fb2f9641eb2b42ca5824e17f2808bea6cb27

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