Malicious PDF — malware analysis report

Static analysis result for SHA-256 803e107a69b75a03…

MALICIOUS

PDF

44.1 KB Created: 2020-08-12 13:47:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b3722956bb42717c0fe3a11f3f02eb9 SHA-1: d1c7948a54cac8141205c64c376b8d2d70fb7736 SHA-256: 803e107a69b75a030ca2237d80e9b0280bab7e53b50daed1cfa2ebbad97a478a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple embedded links, with a primary redirector identified as 'ttraff.com'. The heuristic firings indicate that this PDF is part of a link farm designed to redirect users to malicious content, likely for phishing or malware distribution. The ML classifier also strongly flagged this PDF as malicious.

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=bacterias+gram+negativas+aerobias+pdf In PDF document text
    • http://files.covertscales.com/uploads/1/3/1/3/131379443/9097a19942b.pdfIn PDF document text
    • http://files.customcellardesign.com/uploads/1/3/1/1/131164308/goxevifawogiluz.pdfIn PDF document text
    • http://rubodosib.nardamohammed.com/uploads/1/3/0/7/130776757/narimujubagolisivi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1710/8642/files/84681364358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4357/7256/files/nisasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6957/8147/files/scarlet_letter_study_guides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4964/7271/files/munanetukarad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2641/4748/files/62861438182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8520/9506/files/download_asme_section_viii_division_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3013/4427/files/20912242639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91960476686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7256/1050/files/34288459079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4890/2560/files/archaic_words_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4451/1645/files/corel_draw_x6_tutorials_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/xipozet.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F7 5480 bytes
SHA-256: caa9a33f075cb7e99013fb3c4b49a663ed24e870ef54c1620fac4d963e06d51e
font_01_sfnt_off0000737f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x737F 9908 bytes
SHA-256: 7a8a239e0ad8a3eb2945db30c191780315a8efb9435a06e4d1d6bfab6a33c30b
font_02_sfnt_off0000956e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x956E 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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