Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cef46fc932afb2e…

MALICIOUS

PDF

50.1 KB Created: 2020-08-21 19:49:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c2595cb18b40313f4b511226fec8ee70 SHA-1: 262e7e6ecee1af116004f4d42dbb57ddc60b1910 SHA-256: 2cef46fc932afb2e7f9d1c579e963c34ade32784f2f98519f4ede61d6cbc5589
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This indicates the document is designed to redirect users to malicious sites. The PDF also contains a link farm heuristic, suggesting it's part of a larger SEO poisoning or link distribution scheme. The embedded URL 'https://ttraff.com/pify?keyword=frozen+piano+sheet+music+free+printable' is the primary indicator of malicious intent, likely serving as a lure for further malicious activity.

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.com/pify?keyword=frozen+piano+sheet+music+free+printable In PDF document text
    • http://files.propertiesbypaula.com/uploads/1/3/0/7/130739265/2722954.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/1/0428/3557/4943/files/1769901719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3532/6624/files/irkutsk_oil_company_annual_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2160/4763/files/95817015665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3250/5502/files/44378075591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7087/1970/files/magazine_street_shopping_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3903/8360/files/bidding_strategy_in_construction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/70869794349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8349/7621/files/ap_literature_and_composition_textbook.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 8

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_off0000707b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x707B 5400 bytes
SHA-256: d54e0f3d2c9976a6d659a296a1200d94258eaafa75d4692cfc975aee769dacb1
font_01_sfnt_off000082ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82AC 10560 bytes
SHA-256: ba06d9c42f6138ad81f409c7bc4147c2dbc8fa674e75e304d7c8eb0f7b2308a8
font_02_sfnt_off0000a6d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6D8 16100 bytes
SHA-256: 84650fe671c70ac66f3af0994468c9b9feb42d01905b0f030d5781e095ef8e52

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