Malicious PDF — malware analysis report

Static analysis result for SHA-256 908552cdc8c21088…

MALICIOUS

PDF

49.8 KB Created: 2020-08-22 14:42:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba82793a1e500da7749c9b28f87489f8 SHA-1: ed97ab4d5f2f55092cc9adb8f3f6c5a4c972e6d2 SHA-256: 908552cdc8c21088be398d68d5fd896afde3aafdfcb7c235a006273b784d3ae8
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link. The embedded URL `https://ttraff.ru/pify?keyword=blank+world+map+with+borders+pdf` is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 2

  • 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.
  • 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=blank+world+map+with+borders+pdf
    • http://files.eelasor.com/uploads/1/3/1/3/131381540/xuguzamalavij_pakosawinodo_vuxow.pdf
    • https://cdn.shopify.com/s/files/1/0437/0307/4984/files/pokazivetoxomewaneraj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/75815848510.pdf
    • https://cdn.shopify.com/s/files/1/0437/5517/6097/files/list_of_proper_adjectives.pdf
    • https://cdn.shopify.com/s/files/1/0429/0940/1254/files/wolemebuxiwinuze.pdf
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/61137675427.pdf
    • https://cdn.shopify.com/s/files/1/0432/5657/8212/files/kemirotoliboguv.pdf
    • https://cdn.shopify.com/s/files/1/0435/3189/4944/files/mudejezusimakabikef.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_off000082d2.bin
2436a27ea688eb8957a9dac4d4503074dd86dd3d9d91a2da1d51bb6e878bbc6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82D2 5628 bytes
font_01_sfnt_off000095d3.bin
077d8e3675b9028094f4be322671ff5c1a01013cfa9eca0685c254537df93fd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95D3 10780 bytes

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