Malicious PDF — malware analysis report

Static analysis result for SHA-256 59901ece2c4eddfd…

MALICIOUS

PDF

53.1 KB Created: 2020-08-09 18:59:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d91db6e187696eea219e7555cb8f6c62 SHA-1: 9797504c90f0b4bd6ed18d906fc335257d405f88 SHA-256: 59901ece2c4eddfd536ddecc24baf1e424790d83dee450008a6a140e184171e9
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify-hosted PDFs, which is indicative of a link farm or SEO poisoning attack. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely the primary malicious destination. The document body text, though garbled, contains the phrase 'Sociology of education definition pdf', suggesting a lure to attract users searching for academic content. No scripts were extracted from this sample.

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=sociology+of+education+definition+pdf In PDF document text
    • http://files.allisanellwood.com/uploads/1/3/0/7/130776490/vofawedapo_nalupufamepeti_lemafaxajogeno.pdfIn PDF document text
    • http://files.circle-of-inspiration.org/uploads/1/3/0/7/130775834/kiziwipo-lakuvi-xugukolowawi.pdfIn PDF document text
    • http://redosejuz.ekamniearth.com/uploads/1/3/1/3/131398020/zobizabur_lofexidupo.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/1/0432/0778/6654/files/48256786699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1517/1236/files/wavopiteloretavatudol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9118/9157/files/wopereronixesunosuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2217/0787/files/lujofefipozinikolanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9601/5002/files/zenodamipofiximex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/80161681176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9948/0473/files/ralalonoguwum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8941/2764/files/xewabikamivumepuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4018/6268/files/bhagavad_gita_book_in_kannada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3874/2430/files/24960559446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/nanup.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_off00009347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9347 5256 bytes
SHA-256: 971c72503b90967e787a9aaa267920eef992a7bbf0910cb7ba0d155a702d5bf8
font_01_sfnt_off0000a54c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA54C 10104 bytes
SHA-256: e6631c249107392de8264f4430731880aff674e1584e964d1e495608724267a8

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