Malicious PDF — malware analysis report

Static analysis result for SHA-256 67fa999c2ff50cf8…

MALICIOUS

PDF

47.1 KB Created: 2020-07-31 10:21:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 193aa61747ce98e3f2ddb0db8b5db056 SHA-1: 35071e377efe97e3415ee0b0512fa3b0461c7cd9 SHA-256: 67fa999c2ff50cf8fa34319c0f525a52d025cc0d9cb1a880c7736b2cc20e1394
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to external websites, including a critical finding of a malicious redirector at 'https://ttraff.ru/pify?keyword=easy+piano+sheet+music+pdf+christmas'. This indicates an attempt to lead users to potentially harmful content, likely for phishing or malware delivery. The ML classifier also strongly flagged this PDF as malicious.

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.ru/pify?keyword=easy+piano+sheet+music+pdf+christmas In PDF document text
    • http://files.laurenhendersonmusic.com/uploads/1/3/0/7/130739678/zuledibovoweta-zipuvuv-jukajomemiwuda.pdfIn PDF document text
    • http://files.xenondesigncreations.com/uploads/1/3/1/8/131871745/libozizidigemet-zetupu-gadedamuvegitip-fomebinirid.pdfIn PDF document text
    • http://files.elainealec.com/uploads/1/3/1/4/131438348/tupaxevimobegimoxe.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/1/0433/3142/0319/files/jikajagixiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2877/3021/files/vupob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6901/3144/files/15403230731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7564/1247/files/xaxunazidakedotibenifede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/47988307700.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5939/4213/files/390833347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8679/0304/files/tekulolobufemiluz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2553/8970/files/16672644759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/lelaretototif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/zebupozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1315/2673/files/xazejotiloko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8982/9800/files/fuzonupokuwezisuxasis.pdfIn PDF document text
    • https://musescore.com/davetheviolist,imaIn 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 2

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_off00006f39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F39 5304 bytes
SHA-256: 53f8791127aa37029c2dab55a346962bbaae4dffddb5036484cc46c34eb747dd
font_01_sfnt_off00008116.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8116 14452 bytes
SHA-256: 6035c38b20a3a9c7815b183b1a5d30b0262013d0a654e38ba4aa0d3a026498d1

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