Malicious PDF — malware analysis report

Static analysis result for SHA-256 83db84a6d987ea22…

MALICIOUS

PDF

39.7 KB Created: 2020-08-01 19:25:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76a7c7d6e5a32681cdc49b2c15a89eb8 SHA-1: d8d748470d5077b3e526baf300752127491a41df SHA-256: 83db84a6d987ea220e4acd2140c958ec06bb8a288f690e34e6ad9aa799db3303
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a primary redirector identified as ttraff.com, which is known for malicious activity. The document body, though heavily obfuscated, contains references to 'mega man x rom hacks' and a URL that aligns with the identified redirector. The presence of numerous external PDF links further suggests a link farm or phishing attempt to direct users to malicious content.

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=mega+man+x+rom+hacks In PDF document text
    • http://files.keepthomascountybeautiful.org/uploads/1/3/1/3/131383383/zanikobideton-jupupa-lebux.pdfIn PDF document text
    • http://files.reveirterlabradors.com/uploads/1/3/1/3/131379402/6c0000.pdfIn PDF document text
    • http://files.inki.co.nz/uploads/1/3/1/8/131857756/webavukazixile-jebez-numuxumi-jefij.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/1/0434/0151/1064/files/50514715387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1620/9059/files/xagokox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1357/0709/files/xisorujubus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9883/8942/files/pogibanedowunipegar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3526/1085/files/d3._js_heat_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0426/4602/files/telokawukikotenubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0250/2048/files/48869177701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87664315042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2361/3595/files/xodukutiwilifajimolidaruv.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 5

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_off00005ed0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED0 5316 bytes
SHA-256: 401c9aca5d84f132b4c68406bb39883084d24f11c547babce75936fc9b3470b2
font_01_sfnt_off000070ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70CE 9792 bytes
SHA-256: 2dce480f2baa9e60565f5c878695bc11f334d7b3227aaf8a6acc4cad895144d3

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