Malicious PDF — malware analysis report

Static analysis result for SHA-256 662499fa1adfaff8…

MALICIOUS

PDF

51.7 KB Created: 2020-07-28 01:53:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d5515a396bf1b766e150cf19a82d34cf SHA-1: bc51cf77559a9d8951b9fd64cbe4a2caccaea2f3 SHA-256: 662499fa1adfaff8875e8278946a4d3369cf7c1a2b4c6ae87daff2920c760522
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a link disguised as "Attorney general forms kenya" that redirects to a malicious URL, likely for phishing or malware distribution. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate the presence of redirector infrastructure and a link farm, suggesting a coordinated effort to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious.

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=attorney+general+forms+kenya In PDF document text
    • http://files.usasportsassociation.com/uploads/1/3/0/7/130775707/fawirejimivunefefi.pdfIn PDF document text
    • http://files.jestbecause.biz/uploads/1/3/1/0/131070309/kuzuk.pdfIn PDF document text
    • http://files.studiosirishop.com/uploads/1/3/1/1/131164093/b2e1fe.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/1/0432/3501/6863/files/63209787775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6769/5509/files/sunagifotevegitafijopowud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7234/7550/files/10284695227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6950/4662/files/62053715941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5692/2778/files/wasorifubemepir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0244/5475/files/zudora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/90028364721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5405/6092/files/dawidadazovunavesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3521/3467/files/64652541813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0714/7162/files/87032988877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9140/2660/files/51741226440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2468/4968/files/16660014030.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 6

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_off00008084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8084 4984 bytes
SHA-256: 50471f5a500a708fd31bad1a90503ddfa14297f31647e505169ed7c17c34d76d
font_01_sfnt_off00009169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9169 15864 bytes
SHA-256: c54418bff7f548b62ec34e1fbbf141b8cde512a891958161857a6845e7db0d58

Open this report in the interactive analyzer, or submit your own file for analysis.