Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fca2f745d11c796…

MALICIOUS

PDF

42.8 KB Created: 2020-08-20 09:00:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d06e794026f1bbfae65089083a81dfd SHA-1: 3b98d3c020d4558fabb01329991067279c0a48a7 SHA-256: 5fca2f745d11c79639fc6faa11b63e751375d59a332b3ff60f616ac21016b7b9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a redirector infrastructure known for hosting malicious content. The primary redirector URL, 'https://ttraff.ru/pify?keyword=beyond+the+valley+of+thorns+pdf', is explicitly flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users into clicking it for a purported free download, which is a common phishing tactic.

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.ru/pify?keyword=beyond+the+valley+of+thorns+pdf In PDF document text
    • http://files.lavishvas.com/uploads/1/3/1/4/131453097/4118511.pdfIn PDF document text
    • http://files.pamschultzgallery.com/uploads/1/3/0/8/130873899/tetojifive.pdfIn PDF document text
    • http://napodiza.icellw.com/uploads/1/3/1/8/131857565/vimux_peridaxurifalem_jiwave_bisukupaj.pdfIn PDF document text
    • http://files.royalinspectionskc.com/uploads/1/3/0/8/130813132/8574475.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/1/0438/5511/8501/files/lixivufuzibagajifudulanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5397/3657/files/playboy_special_editions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3978/5111/files/xatumujuxunexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7469/6856/files/sesalewimulasurasizaluvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3319/7718/files/21203071560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2425/1042/files/92698600592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2264/5408/files/bukhari_sharif_bangla_all_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5007/2224/files/5000587016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0967/7224/files/xuxizibubeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/mewexatagunogezotonijuke.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 4

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_off000069f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69F2 5340 bytes
SHA-256: 29d4d6059df52aa4ae871e74705324a2f9dc887a1434401b87add0023a19681a
font_01_sfnt_off00007c27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C27 10144 bytes
SHA-256: aa708da710b51be245e99b64e72b636c1f0ba9baac39a3284863e69181ae8ae6

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