Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6c9b700296d9a7a…

MALICIOUS

PDF

42.8 KB Created: 2020-08-08 23:30:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f0cece736f21392909cb74e98810aab4 SHA-1: 13a1b3d331a2b4e6a904e9bf5168d59462eeb759 SHA-256: d6c9b700296d9a7a84b924c2e2b1cdfba10fe2b15a518de034c8fb10601b44eb
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download for piano sheet music. The link leads to a "pify" service, which is a known redirector. The document also contains a large number of links to other PDFs hosted on Shopify, likely for SEO manipulation to improve the ranking of the malicious link. No scripts were extracted, but the presence of the malicious redirector and the link farm strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=boogie+woogie+piano+sheet+music+free+pdf In PDF document text
    • http://files.larisamantordressage.com/uploads/1/3/2/6/132683181/duvusujelefawa.pdfIn PDF document text
    • http://files.ascension-columbus.org/uploads/1/3/2/6/132681501/gubodonovamez-zexurupalu-sulodifa-poxaxa.pdfIn PDF document text
    • http://files.jmjfitness.co.uk/uploads/1/3/2/6/132682386/jilebojuzoxen.pdfIn PDF document text
    • http://files.evelandfarm.com/uploads/1/3/1/4/131436971/93088aafe1eb3.pdfIn PDF document text
    • http://files.fairytalejourneysbykayla.com/uploads/1/3/0/8/130813134/92d767786.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/1/0428/9835/8432/files/4077026649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3628/5860/files/wutele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5272/0543/files/18617317928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xugufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4536/3610/files/21638546308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/88490435411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4764/1511/files/36449286725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5361/2199/files/49907567033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6801/5260/files/robaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/38646928796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/dopedolupapusamaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5533/3027/files/bavexomavekarapotujigubi.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCC 5676 bytes
SHA-256: a824f54477aeb8c454824d76d50339a38bae638213e944ba33294fc12729ac5a
font_01_sfnt_off0000710c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x710C 14192 bytes
SHA-256: 9b2fba998326f39714c2331ebafc9c01f1823c81b5292909cab239ce51ad7d5e