Malicious PDF — malware analysis report

Static analysis result for SHA-256 792df8bdd2ed7f1b…

MALICIOUS

PDF

42.2 KB Created: 2020-08-18 17:03:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2669c39a42fb97abaf5eb4c6c664961e SHA-1: ea352b73a094c76e3e9531f27afdc4f7f3757130 SHA-256: 792df8bdd2ed7f1ba95b903452022ed7310edf318e85a5bc45f9c288c0959b24
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics. This suggests the document is designed as a lure to redirect users to malicious sites, likely for phishing or malware distribution.

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=aerodynamic+car+pdf In PDF document text
    • http://files.topshelfbonsaipots.co.uk/uploads/1/3/1/8/131857334/foxigolinusa.pdfIn PDF document text
    • http://files.3jsmobilmusic.com/uploads/1/3/0/8/130813314/zuruzagati_pajozezaxu.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/1/0439/1842/6267/files/nofezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8213/0332/files/biselewinanodajorenafug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/bldc_motor_drives.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7341/4055/files/56919337487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5723/3576/files/45479380024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7080/7461/files/dehydration_synthesis_and_hydrolysis_vocabulary_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0537/0791/files/third_trimester_checklist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/forerozalonejibexasekogar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72163988246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/mrc_dyspnoea_scale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44368867506.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 3

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_off00006823.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6823 5184 bytes
SHA-256: adae4876f366eacf4004d049d83c1ec82459327089ae93352b4b52823343d3a4
font_01_sfnt_off000079b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79B6 10068 bytes
SHA-256: 04182517d2d3840db128e264bae01c4989ee683ff2a563121faa1ef10053fefc

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