Malicious PDF — malware analysis report

Static analysis result for SHA-256 1663e5fc8cc4c8d8…

MALICIOUS

PDF

66.5 KB Created: 2020-08-03 01:37:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f14b09e03c96d76432d67c157164452 SHA-1: 7d473e1d70b614eb0ceff2d05953d25b63fd2825 SHA-256: 1663e5fc8cc4c8d81d03edee2ad0b51373de3995a525a59782e3ca9e4552dd89
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=cast+of+blunt+talk, which is also flagged by heuristics as a malicious redirector. This suggests the document is designed to trick users into visiting malicious sites, likely for phishing or malware distribution.

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.cc/pify?keyword=cast+of+blunt+talk In PDF document text
    • http://files.nicolloabe.com/uploads/1/3/1/3/131379406/vujikawibij_tulefoto.pdfIn PDF document text
    • http://files.madxllc.com/uploads/1/3/0/9/130969146/8852600.pdfIn PDF document text
    • http://files.micheldaigneault.com/uploads/1/3/1/4/131407796/bulojekamedekovot.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/1/0428/9835/8432/files/22271122494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2773/2379/files/tefasug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6585/1542/files/7446341499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2548/9320/files/60763973714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/xuxuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/joxola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7975/3121/files/55036640912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8011835234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4873/9740/files/7808132948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9966/8121/files/pinazuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5135/1207/files/newiripotubelej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8888/7460/files/79030929948.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_off0000baca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBACA 4772 bytes
SHA-256: 296c50e02cca81dfbfd0acf633c9c0d34881ad39f2baeb13678504b8e258722b
font_01_sfnt_off0000cb18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB18 15972 bytes
SHA-256: c9fe77de975e117a49617ed88e0ddf2a0c0e87eaa24494f7994c3a4a02e47250

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