Malicious PDF — malware analysis report

Static analysis result for SHA-256 c898e90a54ecae10…

MALICIOUS

PDF

37.9 KB Created: 2020-10-11 12:35:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47ec5b6daaf23ed19ac0ca5a6eaea433 SHA-1: cfd2b0679b54d87c32a35cc3fc9965cf5cdfe81c SHA-256: c898e90a54ecae106024e96dd0ceefbb7362c0e863cef43fe1b456671c12a8f3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, 'https://ggtraff.ru/strik?keyword=tardes+de+lluvia+claudia+celis+pdf+descargar', is the primary indicator of malicious intent. Although no scripts were extracted, the PDF structure and the malicious URL suggest an attempt to redirect the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://ggtraff.ru/strik?keyword=tardes+de+lluvia+claudia+celis+pdf+descargar
    • http://nasotutoz.duairak.com/uploads/1/3/1/1/131164250/a329adf.pdf
    • http://files.octopushairdressing.co.uk/uploads/1/3/0/9/130969061/3482f11f407c.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0495/5491/5488/files/7_levels_of_communication_website.pdf
    • https://cdn.shopify.com/s/files/1/0427/8855/2870/files/64898726273.pdf
    • https://cdn.shopify.com/s/files/1/0499/9285/9808/files/on_sight_lyrics_kash_doll.pdf
    • https://uploads.strikinglycdn.com/files/99f0abf2-b151-4b5c-bc7f-712af5c509f7/22758103147.pdf
    • https://uploads.strikinglycdn.com/files/78546971-9453-415d-be98-65fcc48d101d/45083405307.pdf
    • https://cdn.shopify.com/s/files/1/0434/3362/3708/files/12210804391.pdf
    • https://cdn.shopify.com/s/files/1/0266/8281/8751/files/wegopobuj.pdf
    • https://cdn.shopify.com/s/files/1/0480/1475/3951/files/bio_bidet_elite_3_bidet_attachment_in_white.pdf
    • https://cdn.shopify.com/s/files/1/0440/3278/6597/files/lurazetajukumepe.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005be9.bin
0086dc2f3309f2bdf7ca74a7c0fce2f239b1daa3bb926171c86beb99fc5440b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE9 4920 bytes
font_01_sfnt_off00006cbc.bin
d9301bc8623e93e13a1bd82a717f275d695121c20396005cc9f8a220c64b2368		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBC 11236 bytes

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