Malicious PDF — malware analysis report

Static analysis result for SHA-256 342c90a1b18e18f5…

MALICIOUS

PDF

57.4 KB Created: 2020-08-05 23:46:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e3808e97b145eb77966761d87db18db SHA-1: 5cb9868beac7288fa986602247ad89571e471171 SHA-256: 342c90a1b18e18f5eb9fa37697672fc48dfb0d88e1d77177bd3509636e85671a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one to a known malicious redirector, ttraff.com. This redirector is used in conjunction with a lure for a 'free download' of a PDF, suggesting a phishing or scam attempt. The presence of a large number of external links, many pointing to Shopify-hosted PDFs, indicates a link farm designed to attract traffic and potentially distribute malware or lead to further phishing attempts.

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=boosting+self+esteem+for+dummies+pdf+download In PDF document text
    • http://files.followpiranha.com/uploads/1/3/1/3/131380825/3199816.pdfIn PDF document text
    • http://files.houserootscoffee.com/uploads/1/3/1/1/131163782/c1ae5.pdfIn PDF document text
    • http://files.pierpontchurch.com/uploads/1/3/0/8/130813841/nelubuxezu-feroxawalinezob.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/1/0433/4141/4552/files/waruruwusipifub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/japizibafunafavawazor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1779/5741/files/astronomy_and_astrophysics_solution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/95684883601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2230/0822/files/96768403371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1814/8261/files/43238483953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3318/8762/files/17466952493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5426/0643/files/sql_server_analytic_functions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5682/files/zewopevizowowejimonevuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5274/4347/files/koxokalomigetedaladugudaf.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_off0000a19f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA19F 5504 bytes
SHA-256: 3109fc0adb962b32713d939aaeeac20e37615ac598c17da55b4c20a5add1cd90
font_01_sfnt_off0000b455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB455 10564 bytes
SHA-256: 33771cebed2eb842e96a3dd3c1e79390dc76b75bab5b8ad27fe20eb0e6d2f8ba

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