Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b3059d3b14250e1…

MALICIOUS

PDF

36.1 KB Created: 2020-08-17 12:30:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3a461d8c213c46d6b7ba47d9f3af31b7 SHA-1: 400adc8a8668978701293f7c1bab8b39d2492bab SHA-256: 4b3059d3b14250e16e7076690543c320296545d063b0239081f842976caa3b36
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to piano sheet music and the malicious URL, suggesting a lure. The primary malicious URL is https://ttraff.cc/pify?keyword=in+the+river+piano+sheet+music, which is likely used to redirect users to a phishing or malware distribution site.

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=in+the+river+piano+sheet+music In PDF document text
    • http://delem.coffee2rise.com/uploads/1/3/0/8/130873791/7137846.pdfIn PDF document text
    • http://files.vetwoundlibrary.com/uploads/1/3/1/8/131871479/mipabibajab.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/1/0448/8301/7895/files/28670743662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1204107997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/zojopisuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4971/1781/files/cbse_examination_bye_laws_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12086745869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4017/files/tumudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/2955/7411/files/junior_girl_scout_way_badge_requirements.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4620/5602/files/53710453689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4192/9886/files/boundary_wall_estimate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/27482348981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6427/7657/files/anatomy_and_physiology_of_brain_and_nervous_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/sipaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7318/1598/files/loresuli.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 3

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_off0000442e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x442E 3136 bytes
SHA-256: 5c0553f442a93f5f8ff360bda6b4b11911ffa90e0f8a122bb913a22ae4833061
font_01_sfnt_off00004f72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F72 5140 bytes
SHA-256: 7e3b3fe474a18a8040f5fabaa22b5e8ad0dd4718555b20026728fcf0e8ea43d5
font_02_sfnt_off000060b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B8 9640 bytes
SHA-256: 7b20899ace2b4e5097db67678c7e821b7c61eaba8fb661c33fa2fb232b766b2f

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