Malicious PDF — malware analysis report

Static analysis result for SHA-256 18d2ff0e95e2f098…

MALICIOUS

PDF

41.6 KB Created: 2020-07-31 17:51:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f8d7ceff300a3f4669273098008bfe35 SHA-1: 21eed99d9ea5da1f3fc5b3fff677860b3003eab4 SHA-256: 18d2ff0e95e2f09801eceba1934cd87dd3af51903106c07fa5b1ceb93e698478
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body and heuristics indicate a tactic of creating a link farm, likely to deceive search engines and lure users with promises of free downloads, such as 'the magicians book pdf'. The presence of multiple Shopify URLs, some benign and some unknown, suggests an attempt to blend malicious links with seemingly legitimate ones. The ML classifier strongly indicates maliciousness.

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=the+magicians+book+pdf In PDF document text
    • http://files.texashollandlops.com/uploads/1/3/1/3/131379371/7953459.pdfIn PDF document text
    • http://files.apexlss.com/uploads/1/3/1/4/131453989/vasufujen-ximubugosel-gilasirevabilov.pdfIn PDF document text
    • http://files.christianbuildingmaterials.com/uploads/1/3/1/3/131378932/wobatozuzab.pdfIn PDF document text
    • http://files.mychickenman.com/uploads/1/3/2/8/132814147/varipugav_xadinetodarov_fosotawakefado.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/1/0431/1059/6765/files/zukiroguparojisafuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/87138016980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7628/0729/files/93220040366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9453/9429/files/kalixesaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6404/1373/files/convert_byte_array_to_string.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8159/6066/files/36499929332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/55569807484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4343/8242/files/tupigogidifileguruw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/45083924395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2401/5783/files/mavevaxupofekutit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3425/5258/files/gavur.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 8

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_off00006455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6455 5592 bytes
SHA-256: df27b4ee59bc0d56a5b3f080b2e44f4ac83991a3733acc497659cf1b994fef0c
font_01_sfnt_off00007737.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7737 10044 bytes
SHA-256: 169359a4ba38e8781012c76052e853d745825b13d4c75402b9725dd424d94d5f

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