Malicious PDF — malware analysis report

Static analysis result for SHA-256 550b69c63fd70276…

MALICIOUS

PDF

54.5 KB Created: 2020-11-05 01:30:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-04
MD5: 30500f4534be7b2767c74b15cb35b5ab SHA-1: e08cc5413a0138d41b6a3baab5e67aa0b1f91541 SHA-256: 550b69c63fd70276ecd9959ca98120c07517bf7776801c7ffcab2fa85f04bb27
134 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, identified as a redirector for phishing or malware distribution. The document body content, discussing how to reach Cinnabar Island in a game, serves as a lure to entice users to click the malicious link. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.club/123?keyword=how+to+get+to+cinnabar+island+in+fire+red In PDF document text
    • https://s3.amazonaws.com/tokafanawa/laziwebovarabozid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389792/normal_5f971036babf2.pdfIn PDF document text
    • https://lekinowi.weebly.com/uploads/1/3/4/4/134476644/274915.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374699/normal_5f8a2308ea87f.pdfIn PDF document text
    • https://muvesajaduxu.weebly.com/uploads/1/3/4/0/134012660/2118626.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365660/normal_5f9393148b682.pdfIn PDF document text
    • https://wiwawuvagowe.weebly.com/uploads/1/3/4/4/134496439/2315900.pdfIn PDF document text
    • https://sazunanul.weebly.com/uploads/1/3/4/4/134488017/nevigulufi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416506/normal_5f9db4bc932bf.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/kopugimakamirotalof.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/30145297222.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385228/normal_5f903fa65873f.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000095dc.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000095dc.bin)
    • https://uploads.strikinglycdn.com/files/bde8e9f3-9ab4-4495-baca-91794fa51427/tcs_decoder_manual.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 extracted file (font_00_sfnt_off000095dc.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000095dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95DC 5384 bytes
SHA-256: b9de002a4cf91446243a05fa91372c032696daf4f78edb3a7b1a4189caecb26f
font_01_sfnt_off0000a849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA849 10844 bytes
SHA-256: f36cbbd501506053f5ddbfa2a6a90d664761a80bc17860d2a3c7c1cca47cd51d