Malicious PDF — malware analysis report

Static analysis result for SHA-256 e38c65fe5ec7e723…

MALICIOUS

PDF

44.6 KB Created: 2020-08-07 15:19:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b671e04e0774feef892e3de0c28fd1e SHA-1: 0206d50efb52a04736f6d7a60a27aa0e41ab94a0 SHA-256: e38c65fe5ec7e723809aa966cfb25a9641141e81f7b05f1a344ad45225045ac9
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a link farm hosted on Shopify, which ultimately redirect to a malicious URL. The document body text, though garbled, contains the phrase 'Libro babilonia la grande pdf' and the malicious URL, suggesting a lure for users searching for this content. The ML classifier strongly indicates maliciousness, and the presence of a redirector link confirms a malicious intent to lead users to harmful sites.

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=libro+babilonia+la+grande+pdf In PDF document text
    • http://dajagaf.deliciousdesignsbysherry.com/uploads/1/3/1/3/131379362/04c840d61b0.pdfIn PDF document text
    • http://files.liveplayband.com/uploads/1/3/0/9/130969593/sexediletiwukibu.pdfIn PDF document text
    • http://files.riverplus-multimedia.com/uploads/1/3/0/7/130775786/mowudenalabuk.pdfIn PDF document text
    • http://mukij.spectrumliving.co.uk/uploads/1/3/0/7/130776485/ledatapapogi.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/1/0432/1404/5341/files/99602345903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6294/3144/files/9069597441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6112/2974/files/pemiwigibagesigubiwanitum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1028728638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/40697244201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8350/5562/files/fajonasodonevaseragit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6840/7464/files/mrityunjay_kadambari_in_marathi_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/dugodekojanafidugozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2187/6899/files/skyrim_intro_copypasta.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 7

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_off00007132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7132 5112 bytes
SHA-256: 07139a1563a235a7a7a418adc45f4a7d00cc087e1ecd5107c65f2252b137ecf0
font_01_sfnt_off000082a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A6 10952 bytes
SHA-256: 5b82bcccddfd43f4d59096c8e86a6e43e91417b8002f74ebbf7a3ce8c3a04f15

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