Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ee03cc42973aab5…

MALICIOUS

PDF

41.1 KB Created: 2020-08-06 00:04:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cdfa99e24760abf28bee32693088602f SHA-1: 00b1a3600d0c1d5b3abd15152e3e5ef46c2c58e2 SHA-256: 4ee03cc42973aab5c58157d867964d84c79cf284b00f850bb470d5547dda7483
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) disguised as PDF downloads. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs suggests an attempt to direct users to malicious sites. While no scripts were explicitly extracted, the PDF structure and link farm heuristic point towards 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.com/pify?keyword=shielding+and+deshielding+effect+pdf In PDF document text
    • http://files.twistssponge.com/uploads/1/3/1/4/131453333/jufula.pdfIn PDF document text
    • http://files.isorhythmsmt.com/uploads/1/3/2/8/132815752/8e34c7b.pdfIn PDF document text
    • http://files.hallelujah-lighting.com/uploads/1/3/1/4/131407823/4466680.pdfIn PDF document text
    • http://files.greentreeassociation.com/uploads/1/3/0/7/130740517/koxoke-xunigex-titenowesubi.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/1/0436/8410/2297/files/ppm_modulation_and_demodulation_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8553/6159/files/jezabozamokukiguwut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8211/3433/files/vazonotojutudaxopajaxowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9889/8592/files/64175868624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5158/1591/files/faa_aviation_weather_services.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6909/3541/files/kenmore_series_70_washer_won_t_drain.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65529241957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6977/5782/files/25171231593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/81345294306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5525/0598/files/ravak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1612/6625/files/kotumuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7678/8117/files/95177790740.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_off0000617e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617E 5424 bytes
SHA-256: ea378aaef90d26eb5c0dd7c0eb0c4d31a6b8961762e9d98559577506a1e8537e
font_01_sfnt_off000073f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73F7 10392 bytes
SHA-256: 302b2eb5daff508349c80fa95d8515e967e9c6e561eea26adb2cc38bc1262b72

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