Malicious PDF — malware analysis report

Static analysis result for SHA-256 7677f07fc3019570…

MALICIOUS

PDF

334.9 KB Created: 2020-09-07 19:54:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a80a1e5de433e2db035c37e224887da2 SHA-1: d080e9edcf1b8a17e57390ef8dbf61db8f3a314d SHA-256: 7677f07fc3019570260326b7e596c32fd6801859154f6855aff6451b47870d22
142 Risk Score

Malware Insights

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

The PDF contains embedded links pointing to a known malicious redirector, ttraff.com, which is used to obscure the final malicious destination. The document body, though heavily obfuscated, contains text that appears to be a lure related to medical guidelines, combined with urgency language, suggesting a phishing or scam attempt. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9945

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.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=ventricular+tachycardia+treatment+guidelines+esc In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/121e37_8b8c55c348e14867b0b32c2c3560e0dd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/81d6a4_7c618c81b47d4b79b0a093254acc73de.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/f55bec_bfb759b4fdff4b509515a7f0f2c504fc.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/73cb9e_9face4000f4e46c691d5ea74aad73458.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/544e7e_39919356018b4750bc145009eb8ccea9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5567/6580/files/87133046245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8468/5224/files/32134430165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/fundamentals_of_flight_richard_s_shevell.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2555/3815/files/55703014856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3781/0075/files/80154163239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5271/8494/files/angular_momentum_formula_derivation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8699/3813/files/punctuation_worksheet_for_2nd_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8717/4557/files/75870465739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5788/0994/files/application_format_for_college_professor.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/04e6f9_4ac9477961f44bbf9d03506c2522e7c1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/67e251_fcd65ded83f94fce98cfb6e6e32dcbe3.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004d039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D039 5420 bytes
SHA-256: 9799f91b31d418e939c196c9fb3b0c345a0ca96fecb777fe7a3f67b1f4a7dbfb
font_01_sfnt_off0004e288.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E288 16620 bytes
SHA-256: 46413b70da00d079167729a16e650554da9b9807d78e895f4eadf6864b311530
font_02_sfnt_off00051637.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51637 16148 bytes
SHA-256: aabbb95e4258a1bccfe6759090a0a8b97a33e8154131110566ffb2eaa8fdb080

Open this report in the interactive analyzer, or submit your own file for analysis.