Malicious PDF — malware analysis report

Static analysis result for SHA-256 630652db9c9a33df…

MALICIOUS

PDF

48.5 KB Created: 2020-08-20 09:15:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ded913026a96b5308f7098ac59c58ab1 SHA-1: cdb6483182fe8b1f641e54a2d56f5a002caced73 SHA-256: 630652db9c9a33df50a87522a89bd2db543b019637eaf3740af28d7f4b6a06ba
194 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, which is part of a link farm designed to phish users with free download lures. The ML classifier strongly indicates maliciousness. The embedded URL and the document body both point to the same redirector, suggesting an attempt to download a second-stage payload or lead the user to a phishing site.

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=mediums+book+allan+kardec+pdf In PDF document text
    • http://files.tiffanyshocklee.com/uploads/1/3/1/4/131438682/labaza.pdfIn PDF document text
    • http://virewiwew.secondstoryhoney.com/uploads/1/3/1/0/131070894/bb3aa89b1b1acd.pdfIn PDF document text
    • http://files.harvestonthereservoir.org/uploads/1/3/0/8/130873876/jexiverif-zuduzevofevos-zosegasusefot.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/1/0432/5621/7750/files/81862150850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5657/8206/files/biophysical_chemistry_cantor_schimmel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4011/1782/files/juvifezog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/8138/8452/files/mudabavosizojakexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1684/5469/files/wajizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1618/3205/files/ma_cuisine_algrienne.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84005007378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0796/5345/files/cations_and_anions_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0427/8422/files/75727182358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/medium_clue_scroll_maps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1305/4359/files/lupe_fiasco_the_show_goes_on.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mokotutirajozejimus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0607/3759/files/424980089.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_off00007f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F6D 5508 bytes
SHA-256: 19ce0240b39e586413a639cddb4ea70bb1c028252ca324c802b1ebc45f05eb39
font_01_sfnt_off0000920c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x920C 10216 bytes
SHA-256: 475e80e82828cb7ed4b0574fec613d4e27244d33848b786fa82fed20f6623454

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