Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddeab7fe23a0ee97…

MALICIOUS

PDF

33.9 KB Created: 2020-08-09 13:27:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1beb59bd630b649b16fbc03cbb102dcf SHA-1: b691bfc5ed0fb19dca17d4930804eb5841a9cd8d SHA-256: ddeab7fe23a0ee973e0949f225774a6eb96ee8cdc4f553464f3f8cc480ab625a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded URLs, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains text referencing sheet music and includes the malicious URL. The presence of a link farm suggests an attempt to distribute malicious content or engage in SEO poisoning. The ML classifier strongly indicates maliciousness.

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=festive+trumpet+tune+sheet+music+pdf In PDF document text
    • http://files.ccanorth.org/uploads/1/3/1/4/131438190/8be1b423dc9f52.pdfIn PDF document text
    • http://files.tradewindsroofingsc.com/uploads/1/3/0/7/130776275/9133442.pdfIn PDF document text
    • http://files.beatawiggen.com/uploads/1/3/2/6/132696015/ximasitap-saforitog-piwejefateta-tubike.pdfIn PDF document text
    • http://files.trnwestchester.org/uploads/1/3/0/7/130776575/movenolonusemi-safazepe-toguju.pdfIn PDF document text
    • http://files.redefiningwoman.com/uploads/1/3/1/8/131871633/10de90120fd.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/1/0435/7256/0033/files/mac_ps3_controller.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1222/6206/files/mokififosisisumow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4032/6300/files/wogitixisefoled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8256/3232/files/lexington_ky_tv_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5837/3542/files/tumotozawefunudimuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9076/files/ponepato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/the_pearl_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2655/3755/files/davorurotewoduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7260/0726/files/zosubukojiwafelanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/64699321748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/kowarubekeviwaku.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 8

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_off00004665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4665 5168 bytes
SHA-256: cf791ee1085b6722dd2198174037edcffba1d032e2866de935e5a22c81a432c5
font_01_sfnt_off000057dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57DD 10108 bytes
SHA-256: 9e1a6a045c9c1731081afa9b9ceff39a69ea5108ecc24580e37bac044f992e3c

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