Malicious PDF — malware analysis report

Static analysis result for SHA-256 693c43afa1fa9417…

MALICIOUS

PDF

39.3 KB Created: 2020-08-25 00:55:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9959a8fdaa02f55fd9b39bccc948945c SHA-1: 7f157c30076db3d98a75be7b075909f95fb1ac88 SHA-256: 693c43afa1fa9417d8f49563208a04e1e01d530ff91f9f864db65dcbd6e3c405
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including a critical finding of a redirector link to 'ttraff.com'. This URL is used in conjunction with a link farm of 28 other PDF links, suggesting an attempt to drive traffic to malicious infrastructure. The document body, though heavily obfuscated, contains the malicious URL and references to other PDFs, reinforcing the lure of a 'Dillingham commission report' to entice clicks. The ML classifier strongly flagged this PDF as malicious.

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.com/pify?keyword=dillingham+commission+report In PDF document text
    • http://files.angieemilyjoseph.com/uploads/1/3/0/9/130969097/42d0f2324fca.pdfIn PDF document text
    • http://files.gonzagahealth.com/uploads/1/3/1/4/131482975/lubiwibukitaxud-mulaxutatis.pdfIn PDF document text
    • http://files.centerforessayexcellence.com/uploads/1/3/1/4/131407968/b87640.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/1/0434/3591/7464/files/32053681846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/22679669280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1471/6572/files/52212029350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/bastion_weapons_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7361/8599/files/yakko_s_nations_of_the_world.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2214/0063/files/26362713499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3579/4340/files/29932646903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2087/0044/files/vizemanejegemimexafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8657/7818/files/80311757862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/peziwajamabipurelapalexid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4306/9845/files/72989441379.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFC 5344 bytes
SHA-256: 78f8f305dd59565467718c546fb69c87cdd62da6d946dfa3798478a0fe346e84
font_01_sfnt_off00006ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF9 9908 bytes
SHA-256: 0e03efbe65f7422c14b2d013c02ac2e71ae00cd93111524763f1f2c6aee5f5eb

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