Malicious PDF — malware analysis report

Static analysis result for SHA-256 92b3fdc74d311218…

MALICIOUS

PDF

77.0 KB Created: 2020-08-20 21:39:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a125b8b955e3a7203decd5fe5cb0e05 SHA-1: 55b4368ad42af3910f17661a6166f7b9c0fa086a SHA-256: 92b3fdc74d3112189049338f75069f5bc0a96739c23d91ecdd03576194231178
294 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=brocade+fabric+os+upgrade+guide+8.+2'. The document body also contains this URL, suggesting a lure to download further content. Additionally, heuristics indicate the document is part of a password-protected archive lure and a secret recovery lure, implying an attempt to trick the user into providing sensitive information or credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=brocade+fabric+os+upgrade+guide+8.+2 In PDF document text
    • http://files.westashdesigns.com/uploads/1/3/1/3/131398479/mawavoban-bugowawax-lepireserov.pdfIn PDF document text
    • http://files.incanonmedia.com/uploads/1/3/1/0/131071258/2149966.pdfIn PDF document text
    • http://files.creameryartscenter.org/uploads/1/3/2/7/132740628/982905c820b0d93.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/1/0434/2287/5797/files/75055853565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3849/8206/files/63218967729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2112/2211/files/jebotedesuveb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jedufejaselikaruratemop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/space_marines_codex_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/japajesawel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1587610690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5482/5621/files/anonimo_veneziano_stelvio_cipriani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0736/9639/files/batangas_state_university_college_entrance_exam_reviewer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5395/6758/files/design_and_analysis_of_approximation_algorithms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8120/3861/files/advantages_of_5g_technology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0743/5167/files/41763284927.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_off0000e882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE882 5840 bytes
SHA-256: 061b07e913017d3f358d976756d2c42711bbf30ccd1fd8e98738d839ff618f4f
font_01_sfnt_off0000fc6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC6A 13208 bytes
SHA-256: ef4a94d95dfc1e1d3e7b585fabab96e76cf0b657ed4acb41974b142cca1a0c1c