Malicious PDF — malware analysis report

Static analysis result for SHA-256 8018dca916e7b611…

MALICIOUS

PDF

47.4 KB Created: 2020-08-20 23:58:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96b5959d73434364a6ef785ec4151cb6 SHA-1: 8ee9cfefbc3c5bf8ce11ff2782dd53705c405e54 SHA-256: 8018dca916e7b611b6fa76bb4ae08039737cfc3f8837193dc3f808d933fb45a3
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=journal+el+watan+du+jour+en+pdf, which is likely used to redirect users to further malicious content. The document body, though heavily obfuscated, contains this URL, suggesting a lure to download or view a PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=journal+el+watan+du+jour+en+pdf
    • http://files.portlandcoyote.com/uploads/1/3/1/3/131381414/lidojafowat.pdf
    • http://jozuxu.heidijohnsonpaintings.com/uploads/1/3/1/0/131070858/98118c0fc.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xifadek.pdf
    • https://cdn.shopify.com/s/files/1/0435/3523/7269/files/tell_me_about_yourself_interview_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/5040/1943/files/rukotizukup.pdf
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/renomavomufiguzuro.pdf
    • https://cdn.shopify.com/s/files/1/0435/9775/8622/files/16735048740.pdf
    • https://cdn.shopify.com/s/files/1/0430/1501/2511/files/35805021370.pdf
    • https://cdn.shopify.com/s/files/1/0433/3902/2494/files/digekesavirawufuvoporud.pdf
    • https://cdn.shopify.com/s/files/1/0431/7626/3841/files/suwadefiretigorax.pdf
    • https://cdn.shopify.com/s/files/1/0431/1433/2309/files/gowavuz.pdf
    • https://cdn.shopify.com/s/files/1/0435/2986/3320/files/10120607813.pdf
    • https://cdn.shopify.com/s/files/1/0432/3724/5085/files/glencoe_6th_grade_science_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/voxemubusupimivif.pdf
    • https://cdn.shopify.com/s/files/1/0434/1992/6679/files/sistema_de_gestion_de_calidad_concepto.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_off00007716.bin
348c0fbc4ffc14f72cac5eb0fc310727a7d8f4d49b027eab84b0f85a0c4eae4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7716 5016 bytes
font_01_sfnt_off00008851.bin
1e1205f347fca79da1f2dfe0ae08116b37b58a0f51dafc36af572364f48fec74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8851 12472 bytes

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