Malicious PDF — malware analysis report

Static analysis result for SHA-256 5134d26ffca905ed…

MALICIOUS

PDF

287.4 KB Created: 2020-08-08 07:41:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7acdfb6bf6a67538041366bdb5845b7c SHA-1: eceb28c8010fcf5aa84308791759a6e9e73b4e25 SHA-256: 5134d26ffca905edd80ce5889bf06a5c38cd7ab321046e1168c42ad910d39ebd
134 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is a malicious redirector, specifically designed to lure users with a fake download link. The embedded URL `https://ttraff.cc/pify?keyword=algorithme+cours+et+exercice+pdf` is a known malicious redirector. The document body, though heavily obfuscated, contains this URL, reinforcing its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • 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.cc/pify?keyword=algorithme+cours+et+exercice+pdf In PDF document text
    • http://files.suemorton.com/uploads/1/3/2/7/132740519/xetenupugefodur_gadofuvojor_piwixitel_merop.pdfIn PDF document text
    • http://files.allstardjkaraoke.com/uploads/1/3/1/6/131636972/1bcbafe8b110843.pdfIn PDF document text
    • http://files.hhslibrary.org/uploads/1/3/0/7/130739419/e5346aec3b1.pdfIn PDF document text
    • http://files.denverbap.com/uploads/1/3/2/3/132303351/d6c1973.pdfIn PDF document text
    • http://files.jessicamaan.com/uploads/1/3/1/4/131438216/7734afa716.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/1/0428/9835/8432/files/voriwatovetizejewadodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4024/9755/files/comprehensive_biology_practical_book_for_class_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6084/7004/files/xoxezosevesowop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4684/6107/files/49799460634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2707/1127/files/89577954445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65587220918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8062/1984/files/7606055009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4183/9514/files/megaman_zero_rom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6219/0489/files/wavofemonubukajerujamoxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0937/4365/files/gexidakopenikojavet.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_off00042556.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42556 5416 bytes
SHA-256: 6eb3b41306b50bb36e764ba6ab19dd43871e671826143d2096762272121abbb0
font_01_sfnt_off000437a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x437A9 18496 bytes
SHA-256: 703376a4b47e57c064494ef764722f825777201cf73f30d383c1f934c483e008

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