Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2de220c9a94f00d…

MALICIOUS

PDF

40.7 KB Created: 2020-08-24 15:57:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 835184f29e38db937f1fa8eefac06edc SHA-1: c97937abfbf1033349efe525960f222939b22f90 SHA-256: d2de220c9a94f00d45dc32f55a844fac4b813442898c119327da0c2e30e52b3c
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the text 'Bolt nut dimensions metric pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous links, likely to obscure the malicious redirector.

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=bolt+nut+dimensions+metric+pdf In PDF document text
    • http://negelop.doneyparkhomestead.com/uploads/1/3/1/6/131636725/gukuvegabar.pdfIn PDF document text
    • http://sofibudo.mixmasterrod.com/uploads/1/3/0/8/130814328/7620c6eb5cb092.pdfIn PDF document text
    • http://files.dlindphotoartisan.com/uploads/1/3/0/9/130968993/6a8b0be706c.pdfIn PDF document text
    • http://files.pirouettesschoolofballet.com/uploads/1/3/2/7/132710795/be644710.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/1/0428/2220/5607/files/descargar_mi_certificado_de_secundaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3050/3846/files/c_n_ratio_in_soil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7651/8049/files/midigirelelovemaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4529/8074/files/79402429372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8529/9874/files/la_biblia_thompson_de_estudio_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5669/2390/files/assembler_2_fichiers_en_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3430/3912/files/dizab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1158/7752/files/skyrim_books_beggar_thief_warrior_king.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1974/7996/files/zomezofulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5387/4329/files/57947155191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5366/2883/files/40820537711.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_off00005ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF6 5140 bytes
SHA-256: f827ca9138b56b5346d0c9c69e8d44c6bffd27605beb9c26d24383bb031a5c1c
font_01_sfnt_off0000715c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x715C 10456 bytes
SHA-256: b905a8c346a28d010d6f3694b0e7941dc56722b60c8ee91fc893b34a06caa612

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