Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e5722fc9ec6574f…

MALICIOUS

PDF

117.5 KB Created: 2020-08-11 02:56:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c92c64f0ef82dc2d7dc795c3a506ca62 SHA-1: 086c2f9dcc48401cf376d3a641ba4ffd7638d2f6 SHA-256: 0e5722fc9ec6574f033e1dab44b23087199f9ac50fc9bb261e12bbd20e6e662e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed to obscure the final destination. The primary malicious URL, https://ttraff.com/pify?keyword=emergency+caesarean+section+pdf, is identified as a known malicious redirector. While no scripts were extracted, the PDF structure and embedded links strongly suggest an attempt to redirect the user to malicious content, likely for phishing or malware delivery.

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=emergency+caesarean+section+pdf In PDF document text
    • http://files.thenewblendworthcentre.com/uploads/1/3/2/6/132682167/vevirukemiluwok_rositelezebixu_sofumubuxop.pdfIn PDF document text
    • http://files.fairlingtonfins.org/uploads/1/3/0/8/130813778/7a5f1ad.pdfIn PDF document text
    • http://files.manjaroresort.com/uploads/1/3/1/4/131453897/0b388.pdfIn PDF document text
    • http://files.bradleyestates.co.uk/uploads/1/3/2/6/132682570/wirifobeje.pdfIn PDF document text
    • http://files.paint4all.net/uploads/1/3/0/8/130874023/romizez.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/1/0433/7752/4888/files/45469018847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1496/2848/files/64764330561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7586/9603/files/42434752360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4312/6438/files/anterior_cruciate_ligament_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0078/files/21516600932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5765/9547/files/kimuwik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2707/0104/files/74010724988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4991/7347/files/rake_db_commands.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/93815993412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7132/1752/files/48498156585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/5625/5396/files/unix_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8135/8759/files/26500322270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2132/0870/files/dafapoduzifeliwakuvu.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off0001ade5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1ADE5 17268 bytes
SHA-256: 31797082dc1be62f7943281b358b41149fdbf51bbec005e54f51c0a3409db6d6
font_00_sfnt_off00015d79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15D79 5320 bytes
SHA-256: 13396884de22013ae29799631abfc3e4d4efca883ab8fb36383f3bf90958c024
font_01_sfnt_off0001703a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1703A 5504 bytes
SHA-256: 46de7e9bd12e800d314fde4eb20134d51a17cfabf3905412d056acc8f6fd23a2
font_02_sfnt_off000182dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x182DC 13272 bytes
SHA-256: a3c54f0e69e76a7796fb3d316f5144e7ec6fce383a32199a12d3abae0fe3494d