Malicious PDF — malware analysis report

Static analysis result for SHA-256 519763d811a108ff…

MALICIOUS

PDF

41.2 KB Created: 2020-08-03 19:31:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fdf43fdd1fb309d227edfdc7fe56321c SHA-1: 6da17140f7060f653be66436990472acdd56ade5 SHA-256: 519763d811a108ffae3ae42e58502e463d09c25e72f42c130bbb72b95722ee0b
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one critical link pointing to a known malicious redirector at `https://ttraff.ru/pify?keyword=wagner+bridal+chorus+pdf`. This suggests the document is designed to lure users to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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=wagner+bridal+chorus+pdf In PDF document text
    • http://files.concoursllc.us/uploads/1/3/0/7/130775734/7577767.pdfIn PDF document text
    • http://files.alwayslovedal.com/uploads/1/3/2/6/132681296/d49c29.pdfIn PDF document text
    • http://files.rachelritacco.com/uploads/1/3/0/7/130739376/basowesituxar.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/1/0430/7438/8119/files/87877633188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9939/5998/files/79407496557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6430/3522/files/90926814514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6526/9669/files/29349189411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7426/4996/files/dobudedazoxaxuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/reragijod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5845/3928/files/mafafivisixij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0881/9349/files/86552990564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4096/4759/files/72541458831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/96607175035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7285/5967/files/discord_delete_all_messages_in_channel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8946/8328/files/rabajukazo.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_off00005f89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F89 5568 bytes
SHA-256: c759b67e0421942cf6cb4b15ae4747bc196a21ade671ca5a33aa6943f40b6141
font_01_sfnt_off0000727a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x727A 11388 bytes
SHA-256: 3460c759f2db21080bfbff5ce7415d81b2c198da1af10a18b43fbf8df9f22970

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