Malicious PDF — malware analysis report

Static analysis result for SHA-256 742916ac256dd4ae…

MALICIOUS

PDF

43.1 KB Created: 2020-08-06 19:01:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 79324a6cee86739eb3bbc1914377d8a6 SHA-1: 4d696246bf7cfc2973384f6ee7b4b9f0701a59db SHA-256: 742916ac256dd4ae27338a20804e3cc1b46c0cad675d25efb90fe6613f73d280
194 Risk Score

Malware Insights

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

This PDF file contains numerous links designed to appear as a 'link farm' for SEO purposes, all pointing to a redirector URL. The primary redirector URL, 'https://ttraff.cc/pify?keyword=cards+against+humanity+geek+pack+pdf', is flagged as malicious and likely serves to distribute further malicious content or phishing pages. The document body, though heavily obfuscated, also contains this redirector URL and other benign-looking Shopify links, suggesting a social engineering lure to download files.

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=cards+against+humanity+geek+pack+pdf In PDF document text
    • http://files.brilliantbookclubs.com/uploads/1/3/1/4/131453843/tulupux_lagijov.pdfIn PDF document text
    • http://salikazet.tricitiesfire.com/uploads/1/3/1/8/131871745/f8f42.pdfIn PDF document text
    • http://files.scholarsmartialarts.com/uploads/1/3/2/6/132680986/9ec373bcfaf06c3.pdfIn PDF document text
    • http://tusuxigux.woodblossom.org/uploads/1/3/1/4/131437984/jotinapifaxogor.pdfIn PDF document text
    • http://files.treasured-one.com/uploads/1/3/0/8/130813859/xubeziruwefibopila.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/1/0436/5670/8254/files/91567327073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2508/9191/files/tumigififo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6067/2165/files/mitejisefufemepuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/vaguxulokowemiligexasapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/zofanudodudeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3035/5866/files/6511269765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9954/6009/files/kekitevudifulepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lobusine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jonexosorovofevovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9311/5558/files/tasubedebazekov.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_off00004eea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EEA 5500 bytes
SHA-256: 8d97f09e931ea966b3f8a25d6a411fcf9e56f7aa8bda1406fec0bdf761b3dd1f
font_01_sfnt_off0000617c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617C 14840 bytes
SHA-256: e2501bb3584633821b1246285d65ddb0724b41ab94fefd6919ce4f90d9d9aa10
font_02_sfnt_off00009126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9126 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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