Malicious PDF — malware analysis report

Static analysis result for SHA-256 b76cb7c7e517c6ce…

MALICIOUS

PDF

45.9 KB Created: 2020-08-06 14:55:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 29affdd90b3a204239f8e10b9925ec0a SHA-1: 74ccb012b64e760d57b47fefa56dd7484985e82a SHA-256: b76cb7c7e517c6cede4f4809a16753e709314850794bd2725d5c29c0f495cf13
274 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File T1059.007 JavaScript

This PDF document employs social engineering tactics, presenting itself as a lure for job analysis in HRM to trick users into clicking malicious links. It contains numerous links to external PDFs, many of which redirect through a known malicious infrastructure (ttraff.com). The document also explicitly instructs users to install browser extensions or remote support tools, a common tactic for credential harvesting or malware delivery. No scripts were extracted, but the embedded URLs and the nature of the lures strongly suggest a phishing or malware distribution attempt.

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.
  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=importance+of+job+analysis+in+hrm+pdf In PDF document text
    • http://files.michaelwarrenmurphy.net/uploads/1/3/1/4/131454012/regezewowif-wofenur-puvuvinaveloxi-vugim.pdfIn PDF document text
    • http://files.silkroadresearchcenter.org/uploads/1/3/1/4/131438708/1bf520.pdfIn PDF document text
    • http://files.andrewbroomphotography.com/uploads/1/3/0/7/130775310/9be3c5b88fd891.pdfIn PDF document text
    • http://files.tyrarexin.com/uploads/1/3/1/1/131164399/nusegerotu.pdfIn PDF document text
    • http://files.flaseal.com/uploads/1/3/1/4/131437157/vikozipoxerukul_jisose_pewizubuzuwi_votodinukipesuj.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/1/0427/4647/8759/files/zoxojakusadefozavetolewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8669/3023/files/42242842907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2234/3577/files/33133548548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0766/1464/files/aphasia_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/48392201225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4945/0663/files/zadot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9151/5797/files/roturexelozegefinomutesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1801/8216/files/jelojunaropow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7010/3452/files/kogarituzizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2814/3510/files/25485261913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2702/7352/files/office_building_design_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7301/1863/files/the_strange_case_of_benjamin_button.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0926/9156/files/72741752435.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_off0000751e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x751E 5648 bytes
SHA-256: 2fdf4daba9ffdde887397e6e57c6e4f70219bb02b7958864a2799cbf747bb342
font_01_sfnt_off0000882c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x882C 10076 bytes
SHA-256: e4d97d21dc3c8d222f29cd935ab20f7603805b2b82d3157bc2d480c3cdb7bf25

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