Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee896b7b248f0451…

MALICIOUS

PDF

44.9 KB Created: 2020-08-22 02:20:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cbf336c8268045528159a1ea20127666 SHA-1: 825e52cb2ee23a2865d40bd229991e87c07c0f26 SHA-256: ee896b7b248f0451515805213f896e5d49d193a2781a6c52b43b9061c96db763
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to funnel victims to a phishing or malware distribution site. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning attempt to improve search engine visibility for malicious content. The ML classifier strongly flagged this PDF as malicious.

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.ru/pify?keyword=ios+13+beta+free++link In PDF document text
    • http://pufare.wall-in.com/uploads/1/3/2/6/132696067/guwidotajagipigadi.pdfIn PDF document text
    • http://files.jorgemolinaart.com/uploads/1/3/1/3/131378852/4577925.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/1/0431/2875/0241/files/kitalojazizugetikasul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4683/8176/files/reason_9_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72710717911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1699/4466/files/5205323194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5827/3185/files/80139173781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/78822061813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5647/1970/files/kizopaditewubadoruf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3023/9637/files/zibanitalaxopixumun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/95101033198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5491/3950/files/malusowutusiwukusosabum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/jufuguvir.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006487.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6487 4904 bytes
SHA-256: 6d00997d6f24def2fde0c7e6c2df8e981f1b3c06d4aeb22de332e68dc81fdccf
font_01_sfnt_off0000753a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x753A 10492 bytes
SHA-256: e28f84d26e9a8ba77d393ee120a1d804390cccdbb9d666d23c6a64cdcbbe3c86
font_02_sfnt_off000098e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98E1 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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