Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3fc5a556079a8cd…

MALICIOUS

PDF

45.9 KB Created: 2020-08-22 21:13:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ca130c502f419a8e35d65f781aa58698 SHA-1: 39fe64f3099096b37efe32b3da8252ce9158174b SHA-256: b3fc5a556079a8cda09fa75e094f18e9999f2d2f71c94b51adb0beb6d072c800
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on Shopify and other domains, suggesting a link farm or redirection strategy. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern involves luring the user to a malicious site via a deceptive link.

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=gopro+hero+7+settings+guide In PDF document text
    • http://files.healthypetspetpro.com/uploads/1/3/0/8/130814907/bujuwilomap-dujaga-werikakoked.pdfIn PDF document text
    • http://files.desertblossompreschool.com/uploads/1/3/0/7/130738889/mogozusekadoj-xopowajixajaxo.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/1/0430/9581/8404/files/41394796959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7106/8565/files/36315695986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9721/1551/files/88531051388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7301/1863/files/tazomabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5667/7543/files/81036811031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8187/8942/files/vupuxilufebiwivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2977/3981/files/37906337491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4899/2922/files/41216676604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2007/4663/files/bigozukenojubakasava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7245/4807/files/67674453307.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6961 4972 bytes
SHA-256: f5fbb42770d11b71b3a465596e6da0a82c4d3d763da41b8422cbc99c55745eb4
font_01_sfnt_off00007a50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A50 10160 bytes
SHA-256: cc969847b0922be07a85c60c7ceca3ef235ca5345b4109f99699170fb4a07338
font_02_sfnt_off00009cdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CDB 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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