Malicious PDF — malware analysis report

Static analysis result for SHA-256 507e377df8895b3b…

MALICIOUS

PDF

62.7 KB Created: 2020-08-10 15:06:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cfee0bca291be5668da49e8653f0f93e SHA-1: 6ca33581cd7a0c31a85869668d24c22b1051e45f SHA-256: 507e377df8895b3beee867a73da23307cb11cdf9ed17ac8d500dbc2a7953db00
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the primary purpose is to redirect the user to a malicious site, likely for phishing or malware distribution.

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=the+bobbin+lace+manual+pdf In PDF document text
    • http://files.themademoiselles.org/uploads/1/3/1/4/131454034/2111405.pdfIn PDF document text
    • http://files.cedartrees.org/uploads/1/3/1/6/131606262/9999786.pdfIn PDF document text
    • http://files.magicatglass.com/uploads/1/3/1/4/131453056/4e1cc02.pdfIn PDF document text
    • http://woxedo.solboxfitnessclub.com/uploads/1/3/1/3/131398140/3a8d85274.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/1/0439/7613/0718/files/brevet_pondichery_2020_maths_corrig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6854/5442/files/wuxagavujifazulatope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8135/1839/files/jodi_picoult_house_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0276/4184/files/41690966010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9411/4455/files/abwaan_dhoodaan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3170/5238/files/cctv_surveillance_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mukevomisuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0196/0854/files/4128972864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6811/9453/files/2862255676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7093/0600/files/vati_rn_comprehensive_predictor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3623/7206/files/jokiwawesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3883/3816/files/zaposubuviluwazijepino.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 2

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_off0000b5de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5DE 5208 bytes
SHA-256: 4236c8ccf2c39ae080586680401a370d209bb09babbd04fdd081b5e2811fff33
font_01_sfnt_off0000c75d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC75D 11344 bytes
SHA-256: 372b83e6ea1021cc5b46ae9443dff99e4ef5b0dc3de56421cb9733a4a163f93d

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