Malicious PDF — malware analysis report

Static analysis result for SHA-256 7484fc1bd6cfad20…

MALICIOUS

PDF

49.0 KB Created: 2020-07-21 17:44:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07e94a24682079381a1104ec761243cf SHA-1: 723699e48cdf6ba5ef055b6670b84ffe082e24bd SHA-256: 7484fc1bd6cfad2026ba9b7b09b3d5b1b5e05d6d6003ceaac3bb1c8f6e47657a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links pointing to redirector infrastructure, specifically identified as a malicious link farm designed for SEO-based lures. The primary redirector URL is 'https://ttraff.cc/pify?keyword=50+exercices+pour+pratiquer+les+accords+tolt%25C3%25A8ques+pdf', which is flagged as malicious. This indicates an attempt to deliver a malicious payload or conduct phishing by disguising it as a free PDF download.

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=50+exercices+pour+pratiquer+les+accords+tolt%25C3%25A8ques+pdf In PDF document text
    • http://files.ultramtb.net/uploads/1/3/0/7/130775198/8833163.pdfIn PDF document text
    • http://files.wildwestrebels.com/uploads/1/3/2/6/132696015/00a0b6c01d1de1b.pdfIn PDF document text
    • http://files.nphsjrwolfpack.com/uploads/1/3/1/4/131483253/pageponiputi_gosalobire_vopepas_fatibo.pdfIn PDF document text
    • http://files.kingsvilleroofingcompany.com/uploads/1/3/0/7/130776511/95571f40a9a8.pdfIn PDF document text
    • http://files.taragraceericson.com/uploads/1/3/1/6/131606490/9294033.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/1/0428/9835/8432/files/kubogofire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1560/2339/files/mutum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pesaveput.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0489/5143/files/60421125256.pdfIn PDF document text
    • https://vavokoze.files.wordpress.com/2020/06/5324622172.pdfIn PDF document text
    • https://zudarimun.files.wordpress.com/2020/07/ravaxolezem.pdfIn PDF document text
    • https://duzulowapal.files.wordpress.com/2020/07/dabafameguledowudipiz.pdfIn PDF document text
    • https://fepudepamori.files.wordpress.com/2020/07/girinupuzexoxizevaxukudip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9121/3980/files/kekasetugudebonebuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5285/9543/files/35431251895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90675932679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76423385748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2509/5062/files/loborigojepax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5327/7589/files/xikiwudarokiregubom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9296/7581/files/ravisivezawineguraxam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6857/1299/files/84486579475.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C22 5432 bytes
SHA-256: 3ac640e478a76e78bc1b960da171b391cf864356889434e5ed4407d144044018
font_01_sfnt_off00008e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E69 11936 bytes
SHA-256: 3b958ce7c1c9cc2b5c0fdb780793c6a17675885161bdbb3454d4cdcc7b4967df