Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae06b79943e79d90…

MALICIOUS

PDF

62.5 KB Created: 2020-08-21 14:30:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 95e7ce7689cc2bd9db227f3f175ffe7c SHA-1: bc4c0ae85d3358b34dc4d31491bb6a33ced1e78a SHA-256: ae06b79943e79d908dc4ff7140c2349cc5a0ec6e0b191dcccbda7935874eb2b4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The link leads to a URL that is part of a link farm, suggesting a phishing or malware distribution attempt. The document itself appears to be a lure, using 'jazz clarinet sheet music' as a pretext to encourage clicks.

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=jazz+clarinet+sheet+music In PDF document text
    • http://xapom.airlineace.com/uploads/1/3/0/8/130814328/5696733.pdfIn PDF document text
    • http://files.minebricks.com/uploads/1/3/2/7/132740836/2090716.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/1/0433/5930/5877/files/foxom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4547/6762/files/human_anatomy_and_physiology_book_for_pharmacy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6255/8874/files/pexesikebuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2977/3981/files/41335456820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/1621904897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4881/0149/files/mejoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0953/2316/files/vijamabesuxumedufatoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5039/2984/files/stored_procedure_in_sql_example.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000902a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x902A 5080 bytes
SHA-256: c40c23ad5f33fc13d9ac4af21a41b33b8119ebec73d636657d3bdf5dc2faac29
font_01_sfnt_off0000a146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA146 16996 bytes
SHA-256: 5b7f902960acd52993856837c2f7b974d239981c9bdf1aa679fec91003a63474
font_02_sfnt_off0000d5d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5D5 16292 bytes
SHA-256: bebdae4f72cee612b1595ede016db5bd0d111515040e9f0eaeddc625df1d0941

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