Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c1f9202f02f2a13…

MALICIOUS

PDF

40.8 KB Created: 2020-08-21 06:59:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e33446b4e8c0fa59619f4822e712e48c SHA-1: 4ed526595170190f9711c86e31c9a455afa7cece SHA-256: 7c1f9202f02f2a13e31b1e6aec00dc342975c80211d1e2c04cf84da0891aaa9f
162 Risk Score

Malware Insights

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

The PDF contains a social engineering lure, presenting itself as a download for a 'Netflix android tv 4.4.2 apk'. It embeds multiple links, with one critical link pointing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=netflix+android+tv+4.+4+2+apk'. This redirector likely leads to further malicious content or malware. The document also features a large number of embedded links, many hosted on Shopify, suggesting a link farm for SEO manipulation or to obscure the final destination.

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.
  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=netflix+android+tv+4.+4+2+apk
    • http://melop.houseofhows.com/uploads/1/3/0/9/130969604/riluwuvoregogubojel.pdf
    • https://cdn.shopify.com/s/files/1/0436/5392/2981/files/gugemapelipulemafegiguf.pdf
    • https://cdn.shopify.com/s/files/1/0429/1382/4927/files/vikajajuval.pdf
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/60541932866.pdf
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/84726468069.pdf
    • https://cdn.shopify.com/s/files/1/0431/4356/1376/files/xunoboni.pdf
    • https://cdn.shopify.com/s/files/1/0445/6969/0276/files/livupubojolu.pdf
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/res_ieframe_dll_acr_error_htm.pdf
    • https://cdn.shopify.com/s/files/1/0434/6111/6064/files/psychoterapia_poznawczo_behawioralna_teoria_i_praktyka.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054be.bin
c39be6e8b2849842cd68235b8d88d3f1d61bd46c3da4cd02a98e1be0d03720e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54BE 5060 bytes
font_01_sfnt_off00006614.bin
66aa6ae1ab886dafa4c1ec0279b192e1ce1bd95d699690df3c3d00d568521671		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6614 10168 bytes
font_02_sfnt_off000088e0.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88E0 4324 bytes

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