Malicious PDF — malware analysis report

Static analysis result for SHA-256 eba444d3a2829456…

MALICIOUS

PDF

42.4 KB Created: 2020-08-25 11:45:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1c9602ec17984fee60588dc58d65e79 SHA-1: 3b0199d2660dc37d9352f4b10fdcec86fc6c573d SHA-256: eba444d3a2829456017e3ccf58c1706d2e36284ff72227e3b71907713d87cede
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and a redirector URL, indicating an attempt to lead users to malicious content. The heuristic firings confirm the presence of malicious redirector links and a link farm, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains the primary redirector URL.

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=alphabet+letters+writing+worksheets+pdf In PDF document text
    • http://files.learncprnyc.com/uploads/1/3/1/4/131438759/moxowunoxufogob.pdfIn PDF document text
    • http://files.rabbiraficohen.com/uploads/1/3/0/7/130739658/5339371.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/1/0432/6827/6384/files/saint_seiya_omega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3459/0878/files/nigalepazasesiziravonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35403674757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7663/9127/files/ctet_dec_2019_form_last_date.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0693/3661/files/android_tv_box_x96_mini_firmware.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7163/8421/files/gekosebonodusuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0224/7838/files/kerawogetivajotodafusow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1889/6038/files/sukotogob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2687/3509/files/pdf_rewriter_free_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3393/5519/files/mujadisavalidux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8362/0757/files/how_was_your_weekend_best_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5238/3907/files/netflix_apk_mod_ita_ios.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 2

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_off00006818.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6818 5588 bytes
SHA-256: 577a117b6c6a6fd3303431a6ff2e70f4819d76ba83521b7b34ec4793f997de8c
font_01_sfnt_off00007b17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B17 9888 bytes
SHA-256: 58c0aab44f89a31b961515d0aca2d525931b1169fa60aeda93b48313f736ca9a

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