Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f7b04e2f6878359…

MALICIOUS

PDF

65.7 KB Created: 2020-08-14 05:02:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 791917fcfadc6f1a66d1ad8efbc36821 SHA-1: 92d7917fa649ae98e1ba13b617381e40ee941d2a SHA-256: 5f7b04e2f68783591865b6942adf6b3f093a17078f086a7c8719339e1d206385
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, including a primary malicious redirector at 'https://ttraff.com/pify?keyword=radiology+chiari+i+malformation'. The document body and heuristics indicate a lure related to medical information to encourage users to click these links, which likely lead to further malicious content or phishing pages. The presence of many SEO-optimized PDF links suggests an attempt to distribute malicious content widely.

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=radiology+chiari+i+malformation In PDF document text
    • http://files.photographybysherv.com/uploads/1/3/1/3/131398605/gamasebufiwaw.pdfIn PDF document text
    • http://files.justiceamick.com/uploads/1/3/1/4/131453146/4658394.pdfIn PDF document text
    • http://files.ncosea.com/uploads/1/3/1/8/131871984/panudatusufoluf-kogoxojobuja.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/1/0428/5513/7447/files/levafifusexipamofozupogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5618/4992/files/exercice_orthographe_6me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jokopewizemaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5684/0354/files/dinghy_towing_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5639/7464/files/xetinezuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8606/1480/files/chuyn_i_file_thnh_nh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/datuxozoguwixasodumek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6138/7170/files/dumusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/389628068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/josuzafegeda.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
🗂 Part of campaign: bitsnpieces.ca 5 samples

Related samples 1

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_off0000c28b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC28B 5368 bytes
SHA-256: f5d24198f6a03297e1a90743de59d364b08a53f3a11fd9fd8aee61ca04c7b7e4
font_01_sfnt_off0000d4ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4AB 11664 bytes
SHA-256: 87865889509ddd37dc71b77c270264acc40bb7ee9cc36b004206ddd081a7b7b0

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