Malicious PDF — malware analysis report

Static analysis result for SHA-256 92283ee51eb8e86e…

MALICIOUS

PDF

68.5 KB Created: 2020-08-12 20:33:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5fe108890b71f56c4b0675f42dd667bd SHA-1: 64623b5fde3f821a1557ed2bd191f59c094d87e1 SHA-256: 92283ee51eb8e86e81b26028f54fa823a51bc0520b37b54db6d21fc7340b8325
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=isabel+allende+paula+pdf+gratis'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0429/9417/2058/files/junilejonuv.pdf'. The document body, though heavily obfuscated, contains the malicious URL, suggesting the primary intent is to redirect the user to a harmful site.

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=isabel+allende+paula+pdf+gratis In PDF document text
    • http://sesonu.lakesareaminiatureherefords.com/uploads/1/3/1/0/131071021/6592864.pdfIn PDF document text
    • http://files.mkwci.org/uploads/1/3/1/0/131071043/4139837.pdfIn PDF document text
    • http://files.eygbball.com/uploads/1/3/1/6/131607467/b9d3217.pdfIn PDF document text
    • http://files.bigbellceramics.com/uploads/1/3/2/8/132814086/6227204.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9417/2058/files/junilejonuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lipowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5631/7091/files/15774023779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8752/8103/files/bending_moment_diagram_for_frames.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1019/4582/files/agenda_writing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/kizetavuvojumafoxuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/getepopijus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0625/4494/files/cracked_cylinder_head.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3872/8611/files/39477858937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0427/1524/files/31480389108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8307/9592/files/e2_80_9cvision_bundle_e2_80_9d.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c121.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC121 5056 bytes
SHA-256: fd394ace665dc2050c5e978ac58fcdbccb7e153520fcdbcf3ca5ca7d4c73c3ab
font_01_sfnt_off0000d249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD249 10536 bytes
SHA-256: fbd588e8bdba655eef02a5669bba1cbf4ab342b156e1c9eb1594981e2273a65b
font_02_sfnt_off0000f672.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF672 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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