Malicious PDF — malware analysis report

Static analysis result for SHA-256 79f1bce0befedbdb…

MALICIOUS

PDF

44.4 KB Created: 2020-08-14 01:00:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c48226a64a17852d8e1dd34691059ba SHA-1: 33b7aec07b52859c1de8c91f3c005628d156b29f SHA-256: 79f1bce0befedbdba67470bd79a45638e5fcd8cd0f1893f6aa8491f0a7e3f511
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body text, though obfuscated, includes the same lure text and URLs, suggesting an attempt to trick users into downloading further malicious content or visiting phishing sites. The ML classifier also strongly indicated maliciousness.

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=blend+phonics+worksheets In PDF document text
    • http://seloxuko.jebmotley.com/uploads/1/3/1/4/131454859/24b1a9.pdfIn PDF document text
    • http://ninizevuz.daytoneyecareinc.com/uploads/1/3/2/8/132814742/1932835.pdfIn PDF document text
    • http://files.ethanrmarshall.com/uploads/1/3/0/7/130738722/9aa6f29c89fab2.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/72274594547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vizinedidobirefeguj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9105/9097/files/xupezezapejimojelutid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1011/2163/files/swing_trading_simplified.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7476/5475/files/dietrich_bonhoeffer_eric_metaxas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3801/4616/files/70592727393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28664871254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1461/8262/files/81939194727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/lifujumegerenan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85755015361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6564/7002/files/irritable_bowel_syndrome_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/4013028411.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_off00006488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6488 3144 bytes
SHA-256: f43c3c4636b252422b6484477cee2cb5f50e5c8ead4763327aaa57baef5b4787
font_01_sfnt_off00006fab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAB 5156 bytes
SHA-256: 614e5b9d2987d21776fea70a746545b30a6aa5ef868e40795ee9f1f592520956
font_02_sfnt_off0000813e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x813E 10364 bytes
SHA-256: 078e311bdabe9dd2bacf5a8f2bd0ea2160eed7b4a8f588eaab5c5579334878db

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