Malicious PDF — malware analysis report

Static analysis result for SHA-256 d208d9c4fe626b74…

MALICIOUS

PDF

33.9 KB Created: 2020-08-21 04:07:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7dbcaa5cc94e014450c94ba6eb1caf9e SHA-1: 233102014c8e111fc35a76a4e8d65ca2f49cfa19 SHA-256: d208d9c4fe626b74f1e6112efaf8916483fbd42166d80e87282d8b06f1c4da6b
194 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to product keywords and the malicious URL itself. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, as indicated by the PDF_SEO_LINK_FARM heuristic. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=zapatillas+converse+plataforma+mujer In PDF document text
    • http://xepigefuw.houseofblackart.com/uploads/1/3/2/3/132302782/c78de0aa2.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/1/0435/4146/3189/files/46966559173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3849/9235/files/repipamumemeputu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1136/5272/files/xepenurijebasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5892/9570/files/zixotorowizototar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0786/8834/files/whatsapp_watusi_para_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5749/4686/files/contemporary_mosque_architecture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/le_spleen_de_paris_english.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_off000046a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46A9 5256 bytes
SHA-256: 2aa469e2736ffec5d5cc5223affd0c9ae649efcd1e5861aec317308b13251c94
font_01_sfnt_off0000587a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x587A 10212 bytes
SHA-256: 9faa6f454db5a973559a52f8591f0bfb0019966d7c96687087f5d93f7bece472

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