Malicious PDF — malware analysis report

Static analysis result for SHA-256 947cdde30d2eaf66…

MALICIOUS

PDF

40.0 KB Created: 2020-08-10 02:39:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: abed8d2ff9cbadc78db4cedae5ef000f SHA-1: d4cc54fedc1a6813190caa874677b75c80e1d3cb SHA-256: 947cdde30d2eaf66d6ea83e645ed1901edde5b877538061a683cea6e71be267d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.cc/pify?keyword=vexel+art+tutorial+pdf'. The document body, though heavily obfuscated, contains references to the same URL and other Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicates maliciousness, supporting the conclusion that this PDF is designed to redirect users to harmful content.

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=vexel+art+tutorial+pdf In PDF document text
    • http://files.danielmarkos.com/uploads/1/3/1/3/131381612/c3879950b.pdfIn PDF document text
    • http://files.tabersafehaven.ca/uploads/1/3/2/6/132696214/wekojosasupeti_nonawupemulawa_jonijokap.pdfIn PDF document text
    • http://files.artwithintention.org/uploads/1/3/0/7/130776589/vilim.pdfIn PDF document text
    • http://files.tenthreecleaning.co.uk/uploads/1/3/0/7/130740547/635899e3bb212.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/1/0428/9835/8432/files/wanojexabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0114/3715/files/lekorugadojosewumonolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7373/1741/files/zuzexovek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7885/2507/files/8624210092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4495/3509/files/95151153919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3105/1931/files/lusaxom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7927/0561/files/6489159804.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1083/3058/files/adawat_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4088/2340/files/literary_periods_of_english_literature.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6725/files/87767914627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7858/2439/files/pisciculture_intensive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1418/3323/files/34952387994.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_off00005fef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FEF 4888 bytes
SHA-256: 44a8e3aa37180523bb56bd142b1d73f9f719e5d9e1bf08b2abc23be3ce387355
font_01_sfnt_off000070a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A8 10124 bytes
SHA-256: 3875f817da7d1d30a5a87eba23b26e3f571b4854025b6b2895e5a8d0d6cacfb4

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