Malicious PDF — malware analysis report

Static analysis result for SHA-256 655b24eda80cf016…

MALICIOUS

PDF

44.5 KB Created: 2020-08-18 16:32:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36a67516fe9d89fda8fa0baa2b6da48e SHA-1: 4fa1c1032871c73abb5d33098ae44dc8a53a7bab SHA-256: 655b24eda80cf01619780f7cc1e20af2266b3a46263c19ab6324b85aadff90c7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a redirector at `ttraff.cc`. The document body, though heavily obfuscated, contains text suggesting it is a "Dragonfable leveling guide", which is likely a lure to entice users to click the malicious link. The presence of numerous external PDF links further supports the SEO link farm heuristic, indicating a campaign to drive traffic to potentially 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.cc/pify?keyword=dragonfable+leveling+guide In PDF document text
    • http://dotenobew.fefesdesign.com/uploads/1/3/1/3/131384240/882847.pdfIn PDF document text
    • http://files.azeyemds.org/uploads/1/3/0/8/130814169/abb40b2f7b9f393.pdfIn PDF document text
    • http://files.msrhondajwilliams.com/uploads/1/3/2/7/132741535/gasixodub.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/1/0432/0077/4307/files/38869921262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4959/8632/files/xanetoxabelovis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4976/0421/files/phi_x174_phage_life_cycle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/rexevebekatomulijufamuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/pojoloduvurifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3605/7501/files/chaupai_sahib_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2515/9576/files/lavazavad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5589/files/88379040262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8843/7655/files/us_states_abbreviations_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9144/4390/files/surface_area_of_rectangular_prism_word_problems_worksheet.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 6

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_off00006fd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD3 5096 bytes
SHA-256: 99799f0d0a683cc09e1cb201d37332398371077eef842c2baaf8240e800f8dc2
font_01_sfnt_off0000813d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x813D 10588 bytes
SHA-256: 8bfb804f6c73b89e259328421a89405d7ec166a2bb555ecdb7c79595ebcf7668

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