Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc57c942f1f4914…

MALICIOUS

PDF

39.2 KB Created: 2020-08-14 20:57:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 626f0063a8dc348369d1795698d19376 SHA-1: aa6dda5e0625568134ba9396267f1b2080eb7e69 SHA-256: 1dc57c942f1f4914d13c5d11c18093b26dcf6703ce70c995b3a785a10f3f3e14
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination of the malicious payload. The document also exhibits characteristics of a link farm, embedding numerous external PDF links, many of which point to benign content on Shopify. The primary malicious link is https://ttraff.cc/pify?keyword=beth+hart+sheet+music+piano, which is likely intended to deceive users into clicking through to a harmful site. No scripts were extracted, limiting the analysis of direct execution behavior.

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=beth+hart+sheet+music+piano In PDF document text
    • http://files.pagesofmypinkdiary.com/uploads/1/3/1/4/131406701/beveromisa.pdfIn PDF document text
    • http://rakal.bonniesminiaturedolls.com/uploads/1/3/0/9/130969368/rurex.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/zowebutejisavajuzoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3751/5176/files/agora_resumen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5506/2948/files/67396330559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6395/7918/files/stack_implementation_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5803/6889/files/tupedonegilugesekuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/sisojuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2487/5674/files/sopuravulago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0883/5234/files/wetuvifubabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8135/8759/files/tonewowidimi.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 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_off00004ef4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EF4 5072 bytes
SHA-256: 379f730d83287fd44ae9f2eb0858e546cc11e61a3f6943e13e6e50a26c1cfc17
font_01_sfnt_off00006009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6009 9980 bytes
SHA-256: 2c54944b46ec4a1a5832e5cec3a980d1f460c39f6f50a87e7a1ed1e3890075cc
font_02_sfnt_off00008259.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8259 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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