Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4ebe502aa278d3b…

MALICIOUS

PDF

44.8 KB Created: 2020-08-14 04:59:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cfafc85cc12113d443de54cd3132935d SHA-1: 792cc6a3d18e9231bf7e104aaabdd221a363a4ce SHA-256: e4ebe502aa278d3bf568aca7fcdd613f2421034b2a98fa6b9b6796c6501c0056
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The document body, though heavily obfuscated, contains text related to 'iv cannulation sites pdf' and includes the malicious redirector URL, suggesting a lure for users seeking medical information. The ML classifier strongly indicates maliciousness.

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/wb?keyword=iv%20cannulation%20sites%20pdf In PDF document text
    • http://lirif.dunsmuirdeerhounds.com/uploads/1/3/2/8/132814930/7ff681b.pdfIn PDF document text
    • http://files.aptdevelopmentgroupllc.org/uploads/1/3/1/8/131872285/todebik_rowop_zimasobotidojob_waxekamezimuj.pdfIn PDF document text
    • http://mumefo.akashicgrove.com/uploads/1/3/0/7/130775045/bireda.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/1/0436/1817/3086/files/nitakevoxiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5265/2951/files/sukonugomezuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7777/1164/files/51880671154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9141/7505/files/xamefixejifusufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4760/0807/files/geometrical_optics_in_engineering_physics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2925/0719/files/lasax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1104/7575/files/vice_city_font.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/jexuwutowatilomera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0677/0849/files/zamipajabomofar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9957/8773/files/43464550008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3802/3592/files/panovel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8118/6972/files/dedufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6961/1932/files/7371733065.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C70 5052 bytes
SHA-256: 3d9ba776ba561db4a533d919cc8bfc28ef0e93ba5a5558b6bd76738f9dc6cf95
font_01_sfnt_off00007db1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB1 12828 bytes
SHA-256: 6d324ab0679b25fd4ed406cc1a766589b3f60d783b972088406cebbd655b46f7

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