Malicious PDF — malware analysis report

Static analysis result for SHA-256 7181cf68d36e2c00…

MALICIOUS

PDF

38.7 KB Created: 2020-08-14 13:06:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5fca245b6ed8974c8724e4d3057cf84f SHA-1: bb3e1df45ce931fb1eab13e8d2108109dfb50c63 SHA-256: 7181cf68d36e2c00ac17aa9ce218fdd9170ef745897743a2753ddb531d94c967
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, suggesting a link farm or phishing campaign. The primary malicious link identified is https://ttraff.cc/wb?keyword=legoland%20malaysia%20map%20pdf, which is likely used to distribute further malicious content or lead to a phishing page. The document body, though heavily obfuscated, contains references to this redirector and other benign-looking PDF links, indicating a deceptive lure.

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=legoland%20malaysia%20map%20pdf In PDF document text
    • http://files.miraclevalleyceylon.com/uploads/1/3/0/7/130775921/b0a75bba4.pdfIn PDF document text
    • http://gidan.polozoffdesign.com/uploads/1/3/1/4/131437812/7296690.pdfIn PDF document text
    • http://files.junamustad.com/uploads/1/3/0/7/130776255/fonaturakexejuv_wadijutaba.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/1/0452/2305/1424/files/chocolate_lindt_nutritional_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0485/2386/files/fl_studio_pitcher.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0515/5240/files/84298670800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/intestinal_amebiasis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6277/9295/files/analytical_mechanics_of_space_systems_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0593/3730/files/xemowowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6980/8550/files/dokigavafalig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5340/6618/files/walap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2930/6263/files/wajenaxatawalovovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4994/2176/files/13674197914.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 4

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_off000058d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58D7 5308 bytes
SHA-256: 41351a8dfa26ec1795a3cacaefe06134752d54ce4536efa6ae3dd7c0840ffba0
font_01_sfnt_off00006aeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEB 10376 bytes
SHA-256: 1bbab9509253465b254d37bef65d30986fe98a9d672d2d5b3c724941aff7b248

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