Malicious PDF — malware analysis report

Static analysis result for SHA-256 666c8e6b4d50e235…

MALICIOUS

PDF

45.0 KB Created: 2020-07-29 02:14:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68debb35d691f09afb01c8bddc541961 SHA-1: a504b0585cb1831fc79b3b78a3781dd48c41e538 SHA-256: 666c8e6b4d50e235af14e91f4fb97df4bcecc4348e1d987c715300b3e600b187
194 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to redirector infrastructure, specifically identified as a malicious redirector and an SEO link farm. The primary redirector URL is `https://ttraff.cc/pify?keyword=ring+savvy+inc.+answering+legal+inc`, which is designed to lead users to potentially harmful content. The ML classifier strongly indicates maliciousness, supporting the conclusion that this PDF is part of a phishing or malware distribution scheme.

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=ring+savvy+inc.+answering+legal+inc In PDF document text
    • http://files.curtisnewmanartist.com/uploads/1/3/1/3/131383544/pifewokowisasikelomu.pdfIn PDF document text
    • http://files.blueridgechildrensmuseum.org/uploads/1/3/0/8/130874238/zovumix-lutorenip.pdfIn PDF document text
    • http://files.belizelionfish.org/uploads/1/3/2/3/132302802/7889735.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/1/0433/1434/8197/files/padazatizadegafodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7201/8845/files/mexirikamovipigor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tanedikefiresemur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6055/9013/files/88238488526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4477/2759/files/zadubivijivapenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8457/1031/files/90223361306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4232/4125/files/dobojerixovanew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2060/6885/files/wemikuxiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2838/0839/files/41109481754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1158/7752/files/zixoxokigoxono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6631/8230/files/tawesik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8164/4697/files/watizurox.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 6

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_off00007436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7436 4860 bytes
SHA-256: 63f48531f1a1f94078098be43aa807ba3110f5e273d186591e513c62ddaab230
font_01_sfnt_off000084d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84D5 10020 bytes
SHA-256: 1ec8c12f02cc6ae040e571565ec11673e740c993769c9857fecdfc8e548070d1

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