Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4445c53d509fe2f…

MALICIOUS

PDF

38.9 KB Created: 2020-08-23 12:15:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7bd40f0880f99a7b0bab8b5c183a3dec SHA-1: 4c7ff1f4a65eb299a6b98c4ff5e02142711caf1c SHA-256: b4445c53d509fe2f5ee1368cd1903bf2c7454a0b6b00a88e9f54a8e7566178f8
194 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to its inclusion of a link farm containing numerous external links. One of these links, 'https://ttraff.com/pify?keyword=stonebwoy+ft+beenie+man+shuga', points to a known malicious redirector. The document body contains obfuscated text and embedded URLs, further supporting the malicious intent of redirecting users to potentially harmful 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.com/pify?keyword=stonebwoy+ft+beenie+man+shuga In PDF document text
    • http://files.aymank.com/uploads/1/3/1/6/131606789/855ccfc3.pdfIn PDF document text
    • http://vavuwe.consuelojunderwood.com/uploads/1/3/1/6/131607131/fanodokavepana-vafojikafesok-pitajil.pdfIn PDF document text
    • http://vevatu.lunafiberartist.com/uploads/1/3/1/1/131163494/pebusotoleg.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3502/8630/files/83163924288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7663/2214/files/recursive_pascal_trianle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2342/3912/files/bridgewater_hall_seating_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/sogiwafowuporokip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8849/4236/files/senran_kagura_estival_versus_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5145/0519/files/lijidelofudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8258/6014/files/story_of_an_hour_full_text.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6404/9318/files/ralerajovowofuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8095/8617/files/navimilegukawuzoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1165/3282/files/11511708294.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_off00004c8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C8C 5372 bytes
SHA-256: 47207d34506cb580283bd8f211dfa841b03bced7c81342f7a09adb42aa5027c1
font_01_sfnt_off00005eba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBA 10060 bytes
SHA-256: 05fea287f9285d20611d1606eeeed436490a551412a22a3d0d03aeaa243bfcb5
font_02_sfnt_off00008124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8124 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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