Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee507943a52abbbf…

MALICIOUS

PDF

102.2 KB Created: 2020-08-01 12:43:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b5c4c906beb818d4941dadaa97cfab89 SHA-1: 221ccda2ef03607bef979da47b7787933c1340e4 SHA-256: ee507943a52abbbfbe4a936c4c86304f025112d211a2cb1aaeb202d46ef5464a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources. One critical heuristic identifies a link to a known malicious redirector, `https://ttraff.ru/pify?keyword=stevie+ray+vaughan+net+worth`, indicating a potential phishing or malware distribution attempt. The presence of many Shopify-hosted PDF links suggests an attempt to obscure the true malicious intent by leveraging seemingly benign hosting platforms. The ML classifier also strongly flagged this PDF as malicious.

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=stevie+ray+vaughan+net+worth In PDF document text
    • http://files.clairemanwani.com/uploads/1/3/2/7/132740900/5249915.pdfIn PDF document text
    • http://files.leedsdeckingandfencing.com/uploads/1/3/0/7/130739315/furabuwejeg.pdfIn PDF document text
    • http://files.leafingthroughbooksandtea.com/uploads/1/3/2/6/132681713/338398.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/1/0430/7327/4018/files/tamemaxusowor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34680977850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5042/5750/files/jigaxasorovadebaralov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5371/7406/files/muvetigitifawarafijiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/9409630438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1504/4245/files/gorizurugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1445/3410/files/nagatorofokojoraso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5240/0789/files/discord_custom_font.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8155/5350/files/figalujujoguni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27150836515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8764/1241/files/tumomobupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3985/7572/files/dekujarazipivufitafeko.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
🗂 Part of campaign: leafingthroughbooksandtea.com 3 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015635.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15635 5092 bytes
SHA-256: 747294131af6f7c321a64a16b8b6c0c391a10b324dcc52934b6579c3d101301d
font_01_sfnt_off0001679c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1679C 10640 bytes
SHA-256: f23ac1f9bf3ab43449afc6ce5ca0a0bfa399d6741ae2b3f9e3bf57b695175ca2