Malicious PDF — malware analysis report

Static analysis result for SHA-256 90a1ca75817f9c79…

MALICIOUS

PDF

38.0 KB Created: 2020-08-25 05:15:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 348ac4421c8fa29406d4cbd170cdba94 SHA-1: 13b5505d3a3c5d186be08d173e23c8f58ea83437 SHA-256: 90a1ca75817f9c7974f649ada6bc068f39883be8f2cdf9dc270a23ba8c11d170
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on 'cdn.shopify.com' and various other domains, suggesting a link farm or redirection strategy. The ML classifier also strongly indicated 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=makeup+revolution+concealer+colour+guide In PDF document text
    • http://vavujiz.coechurchofchrist.net/uploads/1/3/0/8/130873951/d7600bbc2c3f9d4.pdfIn PDF document text
    • http://files.burtongreenparishcouncil.org/uploads/1/3/1/4/131482819/zusikawivafifas.pdfIn PDF document text
    • http://files.jimpendergrass.com/uploads/1/3/2/8/132815961/xabixejeje-nenowapiwage-jisematonalon.pdfIn PDF document text
    • http://rabepes.hollymsmithphotography.com/uploads/1/3/1/0/131070722/9819972.pdfIn PDF document text
    • http://files.advocatesfordiversity.org/uploads/1/3/0/9/130969809/muduvonix.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/1/0461/5274/5123/files/56939534077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5930/4865/files/92376217407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0346/1283/files/33325415317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50878135704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0727/0312/files/luvivukagexebuxusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2450/6266/files/85424348822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4729/6922/files/mowozaloza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6404/2396/files/la_mthode_simple_pour_arrter_de_fumer_allen_carr.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67142307476.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_off000056e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56E7 5192 bytes
SHA-256: d2ec39135077aaecb7563dd235ea6e96ad6262619cafd384bb4c2b2bea3a1218
font_01_sfnt_off000068a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A5 10084 bytes
SHA-256: 39590a36d6e91813025c674cccba9993bb5c0562033b3535200003c99c112e5b

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