Malicious PDF — malware analysis report

Static analysis result for SHA-256 e200dfbaf86f3829…

MALICIOUS

PDF

49.2 KB Created: 2020-08-04 18:47:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 862dfa7d09d71aa2ba2a218c87def6f2 SHA-1: afef34f99a95c0ad02f29f9b4c4a61f9ca29b67d SHA-256: e200dfbaf86f382938882020900424158750f863062b7a8332d82d2ee26333aa
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a mass of external links, many hosted on Shopify, suggesting a link farm for SEO manipulation or to obscure malicious destinations. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final payload. The document body, though heavily obfuscated, contains text related to scientific publications, likely a lure to encourage clicks on the embedded malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=conduction+of+heat+in+solids+oxford+science+publications+pdf In PDF document text
    • http://files.lindenwoldlea.org/uploads/1/3/1/3/131380558/7b47d6e.pdfIn PDF document text
    • http://files.southheights.net/uploads/1/3/0/7/130738988/mafaditiva_lexurebidosa.pdfIn PDF document text
    • http://files.talyakingston.com/uploads/1/3/1/3/131383467/1440059.pdfIn PDF document text
    • http://files.naturlandet.dk/uploads/1/3/1/6/131607522/5267648.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/1/0433/0687/7080/files/pigagijewunafusigiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2499/8819/files/viberosoterilepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2666/files/80940955139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8829/5576/files/vevoxetojepeketudivurerol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3082/2555/files/94311213758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6631/0299/files/nokilegojovipixokuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1643/8438/files/43328887170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jokixud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6131/2676/files/98346019929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0465/6790/files/masuruxevelagetuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2394/9224/files/57456584659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/41012843880.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_off000081ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81ED 5356 bytes
SHA-256: d4634897b0338b31803ef341084d6a45dfd6d07547f14f5571ec41c50a4d045d
font_01_sfnt_off00009417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9417 10344 bytes
SHA-256: 8014f2d717343b569444e5ed9dc3887f4877a71882e838e84f72c2fd7bdf2fb4

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