Malicious PDF — malware analysis report

Static analysis result for SHA-256 63dc6e03a20e00c9…

MALICIOUS

PDF

41.6 KB Created: 2020-08-23 02:46:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4562b32b7e29648e9b157540bd54d657 SHA-1: 71dfadc0395211816a0a7d3b4154a19ebb99ba6a SHA-256: 63dc6e03a20e00c902fcdd47b2bd76539492b3b74ca38b4762da2f0b925ce9e9
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including a primary redirector to 'ttraff.com', suggesting a link farm or SEO manipulation tactic. The ML classifier strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded links point towards a malicious intent, likely to redirect users to harmful content or phishing pages.

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=que+es+la+alicina+pdf In PDF document text
    • http://files.rosekeith.net/uploads/1/3/1/4/131453348/842c115b.pdfIn PDF document text
    • http://files.tangns.ie/uploads/1/3/0/8/130874435/58b6b800ac69c.pdfIn PDF document text
    • http://files.thewooliers.com/uploads/1/3/1/4/131406744/rakowoj.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/1/0431/6463/1189/files/remove_bloatware_android_without_root_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2981/8532/files/eye_of_azshara_boss_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1925/5456/files/901846750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/61104061498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2092/7644/files/96579512145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1596/8667/files/schneider_electric_db_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/31245124570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/sky_blue_background_hd_wallpaper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4072/7463/files/cowpeas_production.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1465/1038/files/process_of_mummification_worksheet.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 5

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_off00006213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6213 5112 bytes
SHA-256: 33b97eb813ce736cad9c9cd086317499e9e6bd2be948979d5fd848a3a03a3087
font_01_sfnt_off0000738d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x738D 11440 bytes
SHA-256: c62cd1c508c68d2feda164d499129148ef0fa1650e4c65432d30d4f6df090c52

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