Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b8ea5ba8583fe4d…

MALICIOUS

PDF

44.9 KB Created: 2020-08-06 14:41:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ba3b6cf0b72bb8bb10a7e028a0a6e83 SHA-1: 7e83f6a66f06d9118af8af7ce99fad492eeaa0c5 SHA-256: 7b8ea5ba8583fe4d12bc7fcbcb6ec9f29d6f4f09ce8dff3efffbde01e99a97a2
202 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector infrastructure designed for SEO spam and phishing. The primary lure appears to be an 'asthma action plan pdf texas', which redirects to `https://ttraff.ru/pify?keyword=asthma+action+plan+pdf+texas`. This redirector is known to lead to malicious content. The document body itself is heavily obfuscated but contains references to the malicious URL and other PDF links, suggesting a link farm or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=asthma+action+plan+pdf+texas In PDF document text
    • http://files.newlifetabernacleupc.com/uploads/1/3/1/0/131069978/67a619.pdfIn PDF document text
    • http://files.pilgrimbaptistchurchdurham.com/uploads/1/3/1/4/131452838/3695862.pdfIn PDF document text
    • http://files.gunitsponsorbootcamp.com/uploads/1/3/1/3/131380397/ca0c24.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/1/0431/2976/6039/files/28303366895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0763/1779/files/78460276483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4794/3330/files/berserk_of_gluttony_volume_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5083/4847/files/lokoputexox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5198/0712/files/97038758629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9777/4497/files/61009164155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/46902406380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2191/0694/files/dagirajafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5297/1685/files/silver_strand_surf_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0649/2831/files/minecraft_castles_downloads.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0846/6845/files/88134222421.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_off000071bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BB 5356 bytes
SHA-256: bde437519aa4fcda5473f287d55a8646a3d5a7cd6de3e603578b1f3c11ff7a3a
font_01_sfnt_off000083d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D9 10176 bytes
SHA-256: 0ce869aed221a5e53cba6626726878844406a2ceb2f8d3c8a9559febb6beba3b

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