Malicious PDF — malware analysis report

Static analysis result for SHA-256 29d50c3a82f7ae40…

MALICIOUS

PDF

106.0 KB Created: 2020-09-05 08:55:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 464b6a6d162cae7a6802ee7eeb94bbb7 SHA-1: 502b82fd5e65976bcba66a64c389a91899e9bbdd SHA-256: 29d50c3a82f7ae409501ffc83eb7d08c05aa984c8b6e96a01115e014c641e602
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.me'. This URL is presented within the document body, suggesting a social engineering tactic to trick users into clicking it. The presence of numerous other PDF links, while mostly benign, indicates a potential link farm or SEO manipulation strategy. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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.me/wix?keyword=manual+bizagi+modeler+espa%25C3%25B1ol
    • https://cdn.shopify.com/s/files/1/0430/4093/1991/files/34902942782.pdf
    • https://cdn.shopify.com/s/files/1/0438/8362/6651/files/les_articles_partitifs_et_les_aliments.pdf
    • https://cdn.shopify.com/s/files/1/0431/0951/5415/files/58142568753.pdf
    • https://cdn.shopify.com/s/files/1/0435/2383/4011/files/dogoralojagitafafil.pdf
    • https://cdn.shopify.com/s/files/1/0435/5109/6981/files/16300428591.pdf
    • https://cdn.shopify.com/s/files/1/0429/1058/0903/files/zilinesabojasomo.pdf
    • https://cdn.shopify.com/s/files/1/0446/7264/7331/files/colores_en_html_codigo.pdf
    • https://cdn.shopify.com/s/files/1/0429/5812/7270/files/free_pictograph_worksheets_for_kindergarten.pdf
    • https://static.usrfiles.com/ugd/3e87bf_d7d430e1b8214edfa2fc209b413c4254.pdf
    • https://static.usrfiles.com/ugd/9bd8c3_e5be27c2f68949c987d5f6ca77322dd1.pdf
    • https://static.usrfiles.com/ugd/08fe48_2bca625fbe164c5a8c2ec15ac689c149.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000161c9.bin
41ae9bde8fbaca8807d7860eb62feca7db5d1dc20f1bf9850f769d2ee30f1fb1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x161C9 5684 bytes
font_01_sfnt_off000174d6.bin
edfa22aa84788ae5d708554b2eb5b788e206f83f58b212bc4cf1189bafc5ea0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x174D6 10884 bytes

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