Malicious PDF — malware analysis report

Static analysis result for SHA-256 67659e4777d373ce…

MALICIOUS

PDF

42.0 KB Created: 2020-08-16 20:02:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ab1ee6f1477478213f9dfb0167834f0 SHA-1: d0678c985f5c743e38279c957f971176525d7d42 SHA-256: 67659e4777d373ce648254a19a5f95b3fa3d16573211354a1fd8b82fceba3af2
202 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service identified as malicious. The document body, though heavily obfuscated, contains URLs that are likely part of a link farm designed to improve search engine ranking for malicious content. The presence of a 'download button' lure further supports a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=software+al+quran+digital In PDF document text
    • http://files.theiceridge.com/uploads/1/3/0/7/130775607/wesufanoke-venufakezopuse.pdfIn PDF document text
    • http://files.amerifencellc.com/uploads/1/3/1/3/131379054/9098011.pdfIn PDF document text
    • http://files.truevibrancy.com/uploads/1/3/1/3/131383838/9fa8ea965e.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/1/0433/6150/1336/files/wcirb_class_code_search.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/4644/7776/files/96992977767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lozafawofife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/benebinufuzuwak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6154/1014/files/vusipagosupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9131/0232/files/verifica_analisi_logica_seconda_media.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8456/2084/files/kepapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8837/9032/files/9113830302.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 4

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_off00006848.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6848 5220 bytes
SHA-256: d9c2eaec05599a74897ac0b948355ee6b10868682ab0a5ffe6bf439d1399c2c3
font_01_sfnt_off00007a1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1B 9804 bytes
SHA-256: 281d036076b437127784361db872cd6baa63f7737dc98c2bdb938a081572784a

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