Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4b18ad1e6316d1a…

MALICIOUS

PDF

41.2 KB Created: 2020-08-18 20:56:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 324d113169c62895358bbd157f4be296 SHA-1: 357aab50a0d4ab78b3b60069571f5a53f4c7614b SHA-256: d4b18ad1e6316d1a18cc2f8e589fc95a8996f62e66c7932dbae2e8bf5c8902d5
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text that appears to be a 'tenancy inspection report bc' and the malicious URL. The PDF_SEO_LINK_FARM heuristic also indicates a large number of external links, suggesting a link farm for SEO poisoning or redirection.

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=tenancy+inspection+report+bc In PDF document text
    • http://files.msgallardoela.com/uploads/1/3/1/4/131437655/c6817bb13b.pdfIn PDF document text
    • http://files.elizabethkilcoyne.net/uploads/1/3/2/3/132303278/8a64d1d527f52.pdfIn PDF document text
    • http://nixum.homesweethomemarch.co.uk/uploads/1/3/2/6/132681579/4827219.pdfIn PDF document text
    • http://files.christiantedeschi.net/uploads/1/3/0/9/130969238/de36831f903f3.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/1/0433/0687/7080/files/nosisuzamozozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66689816557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23631451812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93336639176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3831/9527/files/55119096762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19252536586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/dununadimukanud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1282/8833/files/the_bro_code_barney_stinson_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/bohemian_rhapsody_bass_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5486/5320/files/gezawepowinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7630/4544/files/airport_codes_in_world.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3410/8323/files/baxusibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3503/1712/files/gexodinegurilidofuwan.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 8

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_off000064d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D4 5084 bytes
SHA-256: eface8149c9be7a887c22ad5808440470157790f346bb02063646a4401254d96
font_01_sfnt_off0000762d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x762D 9880 bytes
SHA-256: ee02a99c140fb87c1933874516be5f9a1a4e826f34546f82e8a470a7978d7993

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