Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd01d6fa7857e612…

MALICIOUS

PDF

44.0 KB Created: 2020-08-07 15:14:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6482b2603e0d5fbc97ad4fa3ec0322d6 SHA-1: b38e386e73eff2006005d83fcd6e05e2ea68d02c SHA-256: dd01d6fa7857e6129b3306821ed55b2cf631c5863835cc44103f79fad6462634
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector. This suggests a link farm or SEO poisoning attack. The primary malicious URL identified is https://ttraff.com/pify?keyword=tableau+de+l+alphabet+phon%25C3%25A9tique+international+pdf, which is flagged as a malicious redirector. The document body itself is largely unreadable due to encoding issues, but the presence of the link farm and the malicious redirector are strong indicators of 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.com/pify?keyword=tableau+de+l+alphabet+phon%25C3%25A9tique+international+pdf In PDF document text
    • http://files.writingarguments.com/uploads/1/3/0/8/130814118/60f4f32be6.pdfIn PDF document text
    • http://files.ckfacials.com/uploads/1/3/2/6/132680901/80ba1eda7c.pdfIn PDF document text
    • http://dotipo.trailers4u.com/uploads/1/3/0/7/130775997/7920ab52f52d33b.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/1/0433/4672/2974/files/62216226105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8865/files/58875609044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18842325712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5064/7204/files/banking_and_finance_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/videjovefepemagigigefot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8527/4024/files/5911488747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5274/4347/files/pifirumodum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0708/1630/files/69736548217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2780/7908/files/bamunusewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8512/8095/files/lagna_biodata_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7230/4790/files/99482334281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0324/7781/files/70734869100.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 5

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_off00005af3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF3 5308 bytes
SHA-256: c64743e3f28941eca12b8e0fa0ef3879d64d69a95e528f8a8dd3afcfc08b5f11
font_01_sfnt_off00006cac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAC 17436 bytes
SHA-256: d7986f83e01ac44f0cd7267e880c27fdad4ea96f15a718ccc29436d7c9f86879

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