Malicious PDF — malware analysis report

Static analysis result for SHA-256 59b1a3407b783453…

MALICIOUS

PDF

67.4 KB Created: 2020-08-22 15:42:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f8e9b958fc8d1c669d1ca44a0f4f88eb SHA-1: 4333a5778bccb02d636ccde6b02faa2b280e6367 SHA-256: 59b1a3407b7834539044add08ef8060847cbd12c0e506b5058ed91a7d744464b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded external links, with many pointing to a redirector service (ttraff.cc). This suggests a link farm or redirection attack designed to obscure the ultimate malicious destination. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the heuristic firings and URL analysis point to a phishing or redirection-based attack.

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.cc/pify?keyword=plane+structure+pdf In PDF document text
    • http://joziw.imadsz.org/uploads/1/3/2/7/132710621/f766b4e432218.pdfIn PDF document text
    • http://files.darkrisingseries.com/uploads/1/3/1/6/131606631/d961fcc5d959d.pdfIn PDF document text
    • http://wafenufir.rkwestcoaching.com/uploads/1/3/1/4/131437092/6e44191237.pdfIn PDF document text
    • http://files.erinboake.com/uploads/1/3/0/7/130776718/maxul_zefanenumu_ruxuxotevar_jazomagudigem.pdfIn PDF document text
    • http://files.greensplendorlandscaping.com/uploads/1/3/0/7/130775384/710916.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/1/0432/8616/7702/files/xufalibiseso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1778/0896/files/likojobisufuledudixax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4385/5258/files/75809017104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1828/8284/files/zufelajimodukef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6766/9654/files/53626424096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2231/7725/files/kopow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/54533591831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7975/3109/files/16770888358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/jamezob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6213/2897/files/32701045056.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_off0000cd2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD2A 5152 bytes
SHA-256: a4e19f0e8d309874084dbacd80ae25a52beb97761f0f4541ec4e1dfc928a09bc
font_01_sfnt_off0000deb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB8 9948 bytes
SHA-256: e7d740ef2b63592af615a9ac1034d4896446770bc4efc2e1e558bf85ebd5eec2

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