Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d46c23c203bc099…

MALICIOUS

PDF

42.1 KB Created: 2020-08-04 20:56:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: de201ba1a14d9a33df5a304c671e700f SHA-1: 1c1d77e82e8f9e7293b7c46fa1f6d712cc4b44da SHA-256: 1d46c23c203bc099c83c454989282cd7536ed6a55c0cb192656e8e685b68c938
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, also contains the URL 'https://ttraff.com/pify?keyword=lamiaceae+characteristics+pdf', suggesting the primary purpose is to redirect users to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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=lamiaceae+characteristics+pdf In PDF document text
    • http://files.metroacc.com/uploads/1/3/0/9/130968960/251aa093d88da62.pdfIn PDF document text
    • http://files.adamshandmadesoap.com/uploads/1/3/0/9/130968943/bibawefibukadi.pdfIn PDF document text
    • http://bufajiwen.popgalleryorlando.com/uploads/1/3/0/7/130776366/f980ef59.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/1/0428/9835/8432/files/tovovowegafakaroseras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7706/6140/files/regular_expressions_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4638/7362/files/china_ip_address.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8489/7701/files/20824594981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/bigus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5950/3519/files/lalupizilikijonedomagipon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1145/5645/files/90495888918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1603/6249/files/va_forms_4138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61403973964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8601/0776/files/26114334859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4421/6727/files/8867554339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6159/9656/files/galopanosunube.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_off000067d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67D4 5304 bytes
SHA-256: c66ace33ae38178a1e5fa760dd5bd9047c5be30c2a3f1aa96ed519a7456b3184
font_01_sfnt_off000079b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79B6 9920 bytes
SHA-256: 8a0fd41799c04f4ec27e22297f9880b81587801b24752f011df2f838c3f46448

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