Malicious PDF — malware analysis report

Static analysis result for SHA-256 82ffefedd0f4f500…

MALICIOUS

PDF

43.2 KB Created: 2020-08-01 14:57:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da9e2b820e1edf5677d39f86fb9f84de SHA-1: a7ec26d0065ed96eb275e8348de2aa3627eb0f04 SHA-256: 82ffefedd0f4f500137b13c8ae10c2cd6831efb9222ad3c5104164b72874566d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service known for malicious activity. The document body, though partially corrupted, includes text related to 'Verizon fios cancellation fees' and a URL, suggesting a phishing or scam lure. The presence of multiple embedded links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

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.ru/pify?keyword=verizon+fios+cancellation+fees In PDF document text
    • http://files.blcmorris.org/uploads/1/3/1/4/131453260/8000632.pdfIn PDF document text
    • http://files.afrocamming.com/uploads/1/3/2/7/132740637/0056564b83c.pdfIn PDF document text
    • http://files.saintalphonsusschool.org/uploads/1/3/1/8/131857071/b41fba5.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/1/0432/2240/1192/files/90577176750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/57434022708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4130/8320/files/86577419365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9965/9176/files/favomofofafuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6941/files/10387275891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0094/7103/files/dofirorufulazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wonazonuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3178/1791/files/31980891546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6129/6790/files/9294046937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3902/files/21163546781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5592/2856/files/wurisunufopoxaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/satisagagevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3631/9637/files/lodumuniwodefupaxulomaf.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_off00006b7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B7D 4888 bytes
SHA-256: 5e59d9c27051215224b0910669f9efd8bc7eed9b1427054114b9ffc74408a7b7
font_01_sfnt_off00007c3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3D 10316 bytes
SHA-256: 0403a161b355c4cee2bbd6b3adc469761393cbaf89ec4b1a1976e7f60285666e

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