Malicious PDF — malware analysis report

Static analysis result for SHA-256 4be4ca8b5ab96d80…

MALICIOUS

PDF

34.6 KB Created: 2020-08-18 19:46:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b7717b79df33fc8de17aa06bb64874c SHA-1: 3d58c765dfaa736fa11bfbaf009566f1f09d6f6e SHA-256: 4be4ca8b5ab96d80e93973c6669a5614b899002711edea5bd48b1a95f322f689
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the text 'Virginia adoption petition form' and the malicious URL, suggesting a social engineering lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely to improve search engine ranking for malicious content.

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.cc/pify?keyword=virginia+adoption+petition+form In PDF document text
    • http://roger.nwgirlstock.org/uploads/1/3/0/7/130739783/3537249.pdfIn PDF document text
    • http://jivefon.arizonacondemnationlawyers.com/uploads/1/3/1/3/131383483/336c0d.pdfIn PDF document text
    • http://files.tacdlo.org/uploads/1/3/1/6/131637484/3718105.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/1/0429/8866/7034/files/lg_g6_bloatware.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2456/1829/files/job_application_format_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2715/2539/files/jewikorinodisimuradifiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3202/6008/files/validity_and_reliability_of_qualitative_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6009/1287/files/tmux_kill_session.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2023/8503/files/90055834134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9479/3630/files/12649657403.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A25 5116 bytes
SHA-256: 8bad37ee71ce8fa1ed61256d6df953993346808f61b263e096558e9078461d85
font_01_sfnt_off00005b79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B79 10140 bytes
SHA-256: be964282296a70c1cde7ba13d80c2f4fb507474414716ef1230274e2cedd7bfd

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