Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dd8153d8d03cb5f…

MALICIOUS

PDF

40.3 KB Created: 2020-08-11 22:39:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3c2beaa21017b1add319312de3674e2d SHA-1: c598fd993d930aedc55418c0d1dda4978f6afde4 SHA-256: 5dd8153d8d03cb5fdeae27058800e3b17d53bc2dc4f48ed42b07581d2fe7863a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a 'catering menu' lure, and the presence of many external PDF links indicates a link farm or SEO poisoning attempt. The ML classifier strongly indicates maliciousness, and the overall structure suggests a phishing or malware distribution scheme.

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=newks+catering+menu+pdf In PDF document text
    • http://files.nworldweiqi.com/uploads/1/3/2/6/132683088/vubifazuzixo_womerefiv.pdfIn PDF document text
    • http://files.judithavers.com/uploads/1/3/1/8/131856112/8387156.pdfIn PDF document text
    • http://nobivoxi.bisonbikes.com/uploads/1/3/0/9/130969204/74f0d.pdfIn PDF document text
    • http://files.foodjourneywithraul.com/uploads/1/3/0/8/130874587/jikezowosomidomi.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/1/0432/5621/7750/files/gosefagovawera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7469/8912/files/95796932211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8143/1195/files/46035316487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5863/4658/files/13837717119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0899/1143/files/aminoacidos_aromaticos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4347/1010/files/adverb_clause_exercises_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5371/9452/files/sopalexoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1651/files/kitowagopibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/6357738023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5792/9621/files/mojijolodim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9535/7595/files/sika_waterproofing_membrane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rumifagekesodurelakalon.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_off00005556.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5556 5568 bytes
SHA-256: 2c90ec6a07ae39a3b2eef55da90050d67086bf502d1d3f6801a75495da677756
font_01_sfnt_off00006856.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6856 14304 bytes
SHA-256: 048d93fb13c899c592e97b4547c91e259975b85525352ba1830ebb1d23227bab

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