Malicious PDF — malware analysis report

Static analysis result for SHA-256 459bbb7d690d62bd…

MALICIOUS

PDF

43.0 KB Created: 2020-08-05 04:14:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d99d8a03f8681ba93863e8ea37e52361 SHA-1: b28ac6f3325c53e50ab81fbf968258101b665aea SHA-256: 459bbb7d690d62bde4c36d6fa8a536765c6ef759d895eb2f5cbb00c84996c5cb
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector. The document body text, though partially corrupted, includes the same URL, suggesting a lure to trick users into clicking it. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector link indicates a phishing or malware delivery attempt.

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=basic+terminology+of+stock+market+pdf In PDF document text
    • http://files.yhwhourrighteousnesschicago.net/uploads/1/3/0/7/130775646/fatojuviwozit.pdfIn PDF document text
    • http://files.missouridefenseforce.com/uploads/1/3/1/1/131164488/fowudenagamowag.pdfIn PDF document text
    • http://xujaz.eightpointsafrica.com/uploads/1/3/0/8/130874232/b3fec76b3da7.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/1/0433/9469/5329/files/2015_chevy_equinox_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9463/8749/files/dunaros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pewugokujugiwiburonanas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7750/1095/files/42516996784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3495/9256/files/wujisovuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/titewilegonegedupegilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5812/5207/files/jipezijexoxuramo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0463/2992/files/saparafasabuwuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9100/8418/files/gettimeofday_c_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4921/3349/files/tupisijijofotedev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42632515291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5011/3943/files/articles_worksheet_for_grade_5.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_off000068a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A0 5692 bytes
SHA-256: 7e1a203707ec457aaf49bda5c09053baed10c9d771f8589b833c0f7240056eb0
font_01_sfnt_off00007bf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BF9 10304 bytes
SHA-256: e9ca98f903dc3449eb3d21ce57fba13008840801f3c9462491518a128a01a4fa

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