Malicious PDF — malware analysis report

Static analysis result for SHA-256 575667af69a715e6…

MALICIOUS

PDF

38.3 KB Created: 2020-08-24 02:57:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4edc55a40e395d5e55312da6841007ce SHA-1: dcc300af3969830a1a64747dfdb42672106ccdd9 SHA-256: 575667af69a715e60a94388fae91460ff96a49510c9cc9f0eda363d4dd85524f
194 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector at 'ttraff.cc'. This redirector is likely used to obscure the final destination and potentially deliver a malicious payload. The document body, though heavily obfuscated, contains the same lure text and URLs, reinforcing the malicious intent.

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=intro+html5+template+free In PDF document text
    • http://files.ctpartyrental.com/uploads/1/3/1/3/131381555/20ff1.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/1/0434/3532/7653/files/kuwulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8259/6008/files/26682676267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42479515564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1895/9523/files/37142750840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/79915271246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/tezufagibed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7920/3992/files/alanina_funcion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6471/1575/files/83447636058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5190/0310/files/gusoluz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/5130/4348/files/bba_syllabus_ipu_2018.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 1

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_off00005a3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3F 5024 bytes
SHA-256: 247070719e5aea9a4fd5b97779e9e65911854ca37386893ef850d57819b71f22
font_01_sfnt_off00006b25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B25 9816 bytes
SHA-256: 40463e9d9afa63329749c381552552eeac3cea49e097fe0e58b03b39c8310dc6

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