Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2784540dbd8ec10…

MALICIOUS

PDF

41.8 KB Created: 2020-08-14 21:52:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c5c6d89fcc8b238aef1926d9fc9e1f1 SHA-1: cba07e75d5f1d6d06974953d81a0b15b80024a96 SHA-256: f2784540dbd8ec10e960a21c0ea1a53d8c544be710277ada6f4c461f8dca60ba
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a PDF link farm. One of these links, 'https://ttraff.cc/pify?keyword=transformation+chimique+physique', is identified as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL and other links hosted on cdn.shopify.com, suggesting a coordinated effort to distribute malicious content through a large number of external references.

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=transformation+chimique+physique In PDF document text
    • http://files.youthfoodsovereignty.com/uploads/1/3/1/3/131380723/lemejuji_xilevokud_babolisiv.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/1/0427/7128/4135/files/64172020956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/casio_hr_100tm_ink.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4102/1334/files/23114349610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/12214683834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0890/7688/files/69045657462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7995/7669/files/52601788181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0472/3349/files/44619723639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/tirebigasawaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0252/5856/files/nikarilevawawuxirokosufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nitopufekuriwuk.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_off0000620a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620A 5400 bytes
SHA-256: 42e8ccd8fcbff23ab920da687d854f464aa8ea91fda07a61492bfc8db303a283
font_01_sfnt_off00007444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7444 11604 bytes
SHA-256: 794c827f7daa1d7d6d21dc2e70684ecde529db7dc541e94cff71df43701d8361

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