Malicious PDF — malware analysis report

Static analysis result for SHA-256 c00a430e49336ff8…

MALICIOUS

PDF

49.4 KB Created: 2020-08-05 00:58:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8b05a62586cbcfe4279b07dbca103881 SHA-1: 44b111b0790685a397e3c93ce6ace7ca0b48a827 SHA-256: c00a430e49336ff8b8265b16634648341fa744fe9c00d367620ac8c9fe9e0fd7
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to a known malicious redirector at 'https://ttraff.ru/pify?keyword=anchor+tag+in+html+with+example+pdf'. The document body itself is heavily obfuscated but contains references to this URL and numerous other PDF files hosted on various domains, suggesting a link farm or redirection scheme designed to lead users to malicious content. No scripts were extracted from this sample.

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=anchor+tag+in+html+with+example+pdf In PDF document text
    • http://files.holdingupthesky.org/uploads/1/3/1/4/131453248/8414162.pdfIn PDF document text
    • http://files.mskhor.com/uploads/1/3/0/8/130874416/rurazuxor.pdfIn PDF document text
    • http://files.mariecharpentier.net/uploads/1/3/1/4/131483019/batipaxadas.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/1/0431/7950/7870/files/64599918950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8711/0037/files/16116930843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3817/8470/files/31078388900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6577/6030/files/18276836509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0755/7275/files/zobodakaviboxanisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7197/9172/files/tolepasisito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/84352485314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4382/3511/files/40251017433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5266/0901/files/5546615440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1536/2984/files/durofixun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0144/6554/files/14903061321.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 8

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_off0000795a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x795A 5540 bytes
SHA-256: d6193328d4172a6aa70357a43f218571b76db421f66a3d6544d8e398e6f2a9f8
font_01_sfnt_off00008c22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C22 14308 bytes
SHA-256: 0bac0fbcd07ec0f0cad8e82bd1af6c6e976dd324d5712dd3cd7e6ea41e367be2

Open this report in the interactive analyzer, or submit your own file for analysis.