Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e1a1ab75dad6a51…

MALICIOUS

PDF

42.3 KB Created: 2020-08-24 17:31:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1aee8bf32d30bb1d87444a44463d34df SHA-1: 6928e031bcc5d9664e18b077af830535a7e94db0 SHA-256: 8e1a1ab75dad6a519cfaf28d118f922607d046d5c9e87d36c3841abc288e63ee
194 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.com', identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Android 10 motorola g6 plus', suggesting a lure to attract users interested in mobile devices. The presence of numerous embedded links, many pointing to Shopify domains, indicates a link farm strategy to obscure the ultimate destination. 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.com/pify?keyword=android+10+motorola+g6+plus In PDF document text
    • http://sulufuw.nscecommerce.com/uploads/1/3/1/4/131453526/debojijapuwuf_vuxukewa.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/1/0434/3998/0710/files/dorizajox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5313/8591/files/fifeguwipuzaxebofawevurew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2890/4093/files/1621941496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/topubotizulixanasew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3256/8220/files/wubezafukimuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1856/5270/files/devil_may_cry_4_apk_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5622/6716/files/chemical_principles_peter_atkins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuxopikuxoxixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8522/6403/files/naca_airfoil_database.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/fabes.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 6

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_off00006573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6573 5616 bytes
SHA-256: 2ed3bfeeb0819e4d73e730077268f35d469cdeecaea3a1c5d30c05d0bd1ddd80
font_01_sfnt_off00007864.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7864 10804 bytes
SHA-256: 8b7f3a82efb2666243d3315320bdfccd02fec017e1e37f122114bdf3c176538c

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