Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdc6e9d9b172c492…

MALICIOUS

PDF

43.5 KB Created: 2020-08-02 01:17:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a43ed6850b6b4f0184024f379c287417 SHA-1: ffdb5d56eaa29bdaf3e0504183df68b7609da465 SHA-256: cdc6e9d9b172c4926377f2d20d749310443f01bca651f8dc0cb3a6ea8c62bd00
194 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is disguised as a pharmacy personal statement example. This heuristic, combined with the ML classifier's high confidence score, indicates a malicious intent to redirect users to harmful content. The document body, though heavily obfuscated, contains the target URL and references to other PDF files hosted on Shopify, suggesting a link farm or content-luring strategy.

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=pharmacy+personal+statement+examples In PDF document text
    • http://files.crazylecture.com/uploads/1/3/0/7/130739996/jozikugofexumi-tuluk-zavesimovag.pdfIn PDF document text
    • http://files.afrhdevelopment.com/uploads/1/3/0/7/130775503/jomogupe_demulefav_zizukukiju.pdfIn PDF document text
    • http://files.amityschuyler.com/uploads/1/3/0/7/130739827/4511926.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/1/0429/7188/9815/files/50280456424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8477/5578/files/pidape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2691/5239/files/84103394180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/12803303746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1653/5720/files/kukaduberijob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1712/6563/files/26667204907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1650/0886/files/siketetevigefidisenogiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0292/0086/files/lapitukujaseje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6127/1959/files/37229001201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3963/8179/files/77324316931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2018/0894/files/83298598435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0392/7973/files/27395802019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1139/0115/files/dugupofuzigonevogineluwok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6067/4198/files/55588735499.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 7

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_off00006c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9B 5344 bytes
SHA-256: 8480833ca29724a6b1685d3385fa3ae583986243ed3b024b813c46d64d7e33c6
font_01_sfnt_off00007eac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EAC 10092 bytes
SHA-256: 11467743168248e2fb96da0e504c7bea483b79517749d342e815ce98d5a3278c

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