Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b88a3b3c9d2d75d…

MALICIOUS

PDF

42.5 KB Created: 2020-08-10 06:58:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b9be7a7444f1ed00e4028429b5e06715 SHA-1: e8cf722e4fca18fd1a8a551759bc89445e095cda SHA-256: 7b88a3b3c9d2d75d33552aa4b3b19ce69116c7127a45ec64e03f5994afa1c0bb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links designed to create an SEO link farm, redirecting users through a malicious domain. The primary redirector URL is https://ttraff.com/pify?keyword=difference+between+arbitration+and+mediation+pdf, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a phishing or malware distribution lure.

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=difference+between+arbitration+and+mediation+pdf In PDF document text
    • http://files.stopittop.com/uploads/1/3/1/8/131856545/5817370.pdfIn PDF document text
    • http://files.penobsession.com/uploads/1/3/1/4/131438759/4968164.pdfIn PDF document text
    • http://files.quartzvanitydirect.com/uploads/1/3/1/3/131384229/bekafemujezezexo.pdfIn PDF document text
    • http://files.mirroryourbrilliance.com/uploads/1/3/1/8/131856195/luxuseduken.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/1/0434/0259/2410/files/mepumopawonosadarutomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2388/2664/files/16571838931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4047/2229/files/tuburonepume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4225/7561/files/pathfinder_bestiary_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/84430553064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7113/4106/files/gurivawepamixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6349/1222/files/49728775319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7745/8334/files/importance_of_organic_matter_in_soil_fertility.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/validity_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1243/8685/files/geruwaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/xagisobekifusuposafeko.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 5

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_off000067b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B7 5320 bytes
SHA-256: 8d4409d88c631d1cbe683d8f1bfb8979a416a7910a921fb038a4609443ced162
font_01_sfnt_off000079cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79CC 10188 bytes
SHA-256: ba741b40eee9552cea97e5d424d61e1d8ba9adda146b38daa15c4f1c623dde03

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