Malicious PDF — malware analysis report

Static analysis result for SHA-256 77b88aedc35d3941…

MALICIOUS

PDF

39.5 KB Created: 2020-08-14 21:02:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1bac865977218c6acee8c1115c599755 SHA-1: 2294213aba80b166b4477aa5412d667830311d05 SHA-256: 77b88aedc35d3941e4ca577635099bbc404ce5f61de668c3b2bcd58a12db5dd8
202 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body and embedded links suggest a lure for free downloads, likely leading to phishing or malware. While no scripts were explicitly extracted, the PDF structure itself facilitates the redirection, and the ML classifier strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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=richard+clayderman+piano+music+sheet In PDF document text
    • http://files.queenletiziastyle.com/uploads/1/3/0/8/130814430/jemawer.pdfIn PDF document text
    • http://files.chamisachocolate.com/uploads/1/3/2/6/132695428/6052314.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/1/0429/8624/2209/files/28603181754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4909/0200/files/jazz_vocal_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/livre_analyse_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5697/1432/files/fekavituf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4321/7830/files/case_files_obgyn_5th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2017/2957/files/60881587032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1104/7575/files/17161884693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/55298043185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3341/9166/files/70773577167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0881/0398/files/punctuation_rules_uk.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 3

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_off00005095.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5095 5424 bytes
SHA-256: 08cfbea2f91391646e6c50c48112d1714d3e033be1501bab69d6279da8378666
font_01_sfnt_off000062d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D4 2276 bytes
SHA-256: daeabc9ae32f0170af018034206da36b615b538ad94b4b8b4d954fb2a06fe6c0
font_02_sfnt_off00006d37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D37 10344 bytes
SHA-256: 2ffa556e5c0a286c3d2b454bfc8edfcfcd668f054542315c4f4193398778c24e

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