Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f790c84a2dcdd46…

MALICIOUS

PDF

44.9 KB Created: 2020-08-02 17:03:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d393a183ca8f495b56a661f8f1aa020d SHA-1: ced8a2259ed950765f13c7ba12512ace79e106e3 SHA-256: 5f790c84a2dcdd460a76738f117973db957734a0c478611bc424a3e700d4d753
194 Risk Score

Malware Insights

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

This PDF file contains multiple links to a redirector infrastructure, specifically `https://ttraff.com/pify?keyword=drtx+stock+price`, which is flagged as malicious. The document body, though heavily obfuscated, appears to contain similar URLs and text related to stock prices, suggesting a phishing or scam lure. The presence of numerous external PDF links also indicates a link farm for SEO manipulation, likely to distribute malicious content.

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=drtx+stock+price In PDF document text
    • http://files.busseltonrifleclub.com.au/uploads/1/3/1/3/131380469/05aefdab1c8a.pdfIn PDF document text
    • http://files.kristysinsara.org/uploads/1/3/1/3/131398144/takotine-lodapetubav-dulogikur.pdfIn PDF document text
    • http://files.rachelwilliams-animalbehaviour.com/uploads/1/3/1/3/131398000/bifone.pdfIn PDF document text
    • http://files.cutofnova.org/uploads/1/3/1/3/131379761/xegukuwusak_fepivavamere_wasajisive.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/1/0431/6214/0840/files/16946953003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8252/2528/files/dizufotepux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7120/1695/files/78517261571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0381/2773/files/marevuxebigujoleti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9095/8752/files/ditudoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/6498147468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2373/5720/files/ruseledufigoweserajepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6987/5111/files/88446160178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7749/1105/files/26423906739.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_off000063d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D5 4816 bytes
SHA-256: 60a839d59c3999ff124afdf3b8d9c135b709b4bbde92851ce90cf085cf137d0d
font_01_sfnt_off0000745e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x745E 16164 bytes
SHA-256: 782fb0b737490e5f9d09dfbe22c5642b97144767c109dd0afaf3d0fe10af8787

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