Malicious PDF — malware analysis report

Static analysis result for SHA-256 1303a0fdccc70bb9…

MALICIOUS

PDF

55.2 KB Created: 2020-08-23 09:58:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 165cb5fa71e812736f74c00a337d1bb9 SHA-1: 293d745b5cd7f4a6268fbdf765c39937ccad7997 SHA-256: 1303a0fdccc70bb9946e0d084c184af60807719ccc17afe3fbdd270d5e884921
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious URL, disguised as sheet music. This indicates a phishing or scam attempt, likely to lead the user to a malicious site or download further malware. The ML classifier strongly supports the malicious verdict.

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=creedence+clearwater+revival+drum+sheet+music In PDF document text
    • http://vamejado.lvapparel.net/uploads/1/3/1/4/131436977/bivibofavovam_pudamaguti_dijoros_mixopibilar.pdfIn PDF document text
    • http://files.dkgalphalambda.com/uploads/1/3/2/6/132695438/ruwurovedukope.pdfIn PDF document text
    • http://files.mywrappingco.com/uploads/1/3/2/6/132681342/zerisizivugidinat.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/1/0434/4234/0007/files/62825291719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1910/7480/files/21712942053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3600/6810/files/59242095844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1359/3499/files/foluxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7428/8793/files/solid_converter_full.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5812/files/nokojagok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0173/2520/files/envision_math_grade_3_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2812/7637/files/sap_basis_administration_practical_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/5890/8584/files/cvc_words_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kosetomamevisired.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_off00008864.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8864 5236 bytes
SHA-256: 8064432a1e51539a7535a21064ff6050c4dcb0e6d327b8cde5bdd4daaf0d3387
font_01_sfnt_off00009a13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A13 17392 bytes
SHA-256: 4fffe70d09954fa1732e8d69ba29724a4527fa3a9d964a6571f092503479bb89

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