Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4ed7e4b5c76cda0…

MALICIOUS

PDF

42.1 KB Created: 2020-08-02 03:33:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ac309bd3a48c06426bbb00d02e36551 SHA-1: 78b64ad525324348f9d2126d3bc1a8930f036496 SHA-256: e4ed7e4b5c76cda01765f7b8aa8b13925d0c8b6b45c0f4a9c6bafa7b1d7c1b23
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, and a primary redirector URL. The heuristic firings indicate this PDF is designed as a link farm and a redirector to malicious infrastructure. The ML classifier strongly supports its malicious nature, suggesting the intent is to drive users to the `https://ttraff.com/pify?keyword=adventure+time+reddit` URL for further exploitation or phishing.

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=adventure+time+reddit In PDF document text
    • http://files.guyingram.com/uploads/1/3/2/6/132681596/3295852.pdfIn PDF document text
    • http://files.ohioheartgroup.com/uploads/1/3/0/7/130739493/zalaw.pdfIn PDF document text
    • http://files.alexstudio.bg/uploads/1/3/1/1/131164448/875fbb5e4c12d5.pdfIn PDF document text
    • http://files.martialhartamas.com/uploads/1/3/0/8/130814279/6186ec0be38b.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/1/0437/2211/3192/files/92438228863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5049/9222/files/xizowozerisasebidege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0128/1701/files/zakavipaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/95957658391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/nowilulujela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0163/3177/files/25948694062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8916/4440/files/batesajotufujanow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7201/8845/files/elmos_got_the_moves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7287/9782/files/live-_server_command_not_found.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6174/6595/files/60700398388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/92636347463.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006795.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6795 4600 bytes
SHA-256: 504f01c03232d78229aaf4a46be49676b1bed135f59c637825a0eb5500032354
font_01_sfnt_off00007728.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7728 10744 bytes
SHA-256: a2ad145eeb2ced2508211a0b4aad84b31ce54d4cc30ecb97570602e52e6c39cf