Malicious PDF — malware analysis report

Static analysis result for SHA-256 18e05009f36d494c…

MALICIOUS

PDF

40.9 KB Created: 2020-08-25 07:21:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c30fbb472c3b3ed8b9e1bc48e91056f9 SHA-1: 618fb10736b6f34ff8b73769f48be6a8a05e18b0 SHA-256: 18e05009f36d494c6467bc26c16f2c10a3af455897958c00f27aed49ebfca849
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a redirector service, which is indicative of a phishing or scam campaign. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external links suggests an attempt to drive traffic to malicious or deceptive content. The primary redirector URL is https://ttraff.com/pify?keyword=target+khaki+uniform+shorts.

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=target+khaki+uniform+shorts In PDF document text
    • http://files.eastdulwichmummy.com/uploads/1/3/1/3/131381555/2480f4cedc31f.pdfIn PDF document text
    • http://tunuragu.apextravelogue.com/uploads/1/3/2/8/132814956/0f32dbbbc.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/1/0436/9799/5944/files/wibasefapekomodugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7742/5565/files/26397613210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6620/4066/files/novoxejexogenoxozomeguxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7143/1065/files/52468293932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2281/9233/files/zukelugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0970/3061/files/28451178799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5852/8405/files/apuntes_perspectiva_caballera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5278/6074/files/wavelet_transform_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1123/4199/files/amharic_alphabet_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0407/9778/files/crayon_box_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3608/0288/files/birewekovoninajaj.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_off00006195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6195 5164 bytes
SHA-256: 515c08cc2f586d7e9364d62c3de99cfbbb28c2a0678aeec7265ea3642888d700
font_01_sfnt_off000072fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72FD 10652 bytes
SHA-256: a0fedd680df3c2254bc2c8214696196ec94d72e124273c099de023db4d03e6dc

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