Malicious PDF — malware analysis report

Static analysis result for SHA-256 854b9a66f9a5fe8f…

MALICIOUS

PDF

66.8 KB Created: 2020-07-31 07:55:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9651b375bc9b031ec38b7352eee9ddc1 SHA-1: 32f1e5297583b71eecdde38f8283db1673935b8c SHA-256: 854b9a66f9a5fe8f1e2f01c163861d93eabade30793b5d3bbd28181f96be0699
194 Risk Score

Malware Insights

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

The PDF file contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to distribute malware or conduct phishing. The ML classifier strongly supports the malicious verdict. The embedded URLs, particularly the one pointing to 'ttraff.cc', are identified as malicious redirectors, likely serving as a gateway to a secondary malicious payload.

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=american+heart+association+acls+provider+manual+2020+pdf In PDF document text
    • http://files.mcpa4you.org/uploads/1/3/0/7/130775352/jewekunefokevi.pdfIn PDF document text
    • http://files.greaterhudson.org/uploads/1/3/1/4/131438420/mabebefixilemi_nibavoxopelaz.pdfIn PDF document text
    • http://files.thestoreinstaunton.com/uploads/1/3/0/7/130775934/d7b1e7dd3c4666c.pdfIn PDF document text
    • http://files.osakiselimchurch.com/uploads/1/3/0/8/130813100/fef0fe5.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/1/0430/6518/0321/files/90757401133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9878/3382/files/66029118688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0636/9703/files/jilejakedevapoluxarejeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0412/3557/files/vuritokik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/84233577660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/xufidozosopofoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1084/1000/files/xikakemenasakijiperaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/33431081314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1127/4914/files/89541349022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9291/8947/files/78376976244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7409/3217/files/81880117663.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_off0000c6ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6ED 5600 bytes
SHA-256: 827d062486ea9bbc17b41575ec0cd22531b09a73356f4d496c685f4b412c812d
font_01_sfnt_off0000d9bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9BF 10552 bytes
SHA-256: 980ad1e6644d6ea5fde185811aefd550c4d2ca36df890c6af7e31378669d6b7f

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