Malicious PDF — malware analysis report

Static analysis result for SHA-256 02c604fab2449b5d…

MALICIOUS

PDF

41.7 KB Created: 2020-08-19 16:30:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e603642536ecb7b38f2443e16a2be41b SHA-1: ced07d0d225053fca4a96ddd5a936c5d9be266b2 SHA-256: 02c604fab2449b5d430b7a8bfbda644dbb1042231926b38f0a36f53d810e3b82
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to a malicious domain, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves luring the user to click a link that leads to potentially harmful content.

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=extraccion+y+almacenamiento+de+leche+materna+pdf In PDF document text
    • http://files.smashcakesetc.com/uploads/1/3/2/7/132740553/rofisazozizu_nafinituzebol.pdfIn PDF document text
    • http://files.westsideyouthministry.com/uploads/1/3/1/6/131637169/9a6d19c6a2d6.pdfIn PDF document text
    • http://fadozi.iheartbagel.com/uploads/1/3/0/8/130874359/komojelixabit.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/1/0431/9982/4036/files/tratamento_da_asma_bronquica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/1994793729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4551/7469/files/76661561561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4222/6854/files/43974933630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7264/3491/files/gosebidubimisurekodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/terrible_things_allegory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/tratamiento_del_nervio_ciatico_inflamado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0890/9734/files/piguwovamivuzajiludu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0905/6666/files/47126860042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6520/3093/files/act_kagerou_overlay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0610/7552/files/7582042268.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 4

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_off00006212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6212 5344 bytes
SHA-256: 43bbace54a11819599deebd06c272a7549562bf56498643b3f399a85b13315f8
font_01_sfnt_off00007416.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7416 11092 bytes
SHA-256: 022eeda2dab1d2ea0888fc9b475dfb1ce2f50babaec2439b75c5338d3239574d

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