Malicious PDF — malware analysis report

Static analysis result for SHA-256 e17c65345070e913…

MALICIOUS

PDF

77.9 KB Created: 2020-08-16 12:54:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b1fcf26e43c66529468d4d67fc72ec8 SHA-1: e0c84c5f28d0620e26c10cc07dbe2eb9f345169b SHA-256: e17c65345070e9130929c479e9e577838800619378d718404766aa20b0d32a7e
208 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a social engineering attempt to lead the user to a harmful site. The heuristics suggest lures for browser extension installation and password-protected archive handoff, common tactics for malware delivery. The embedded URL 'https://ttraff.ru/pify?keyword=aashiqui+2+movie++480p' is identified as a malicious redirector.

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=aashiqui+2+movie++480p
    • http://files.drdavidnjacobsen.com/uploads/1/3/0/8/130874330/gexuburox.pdf
    • http://files.longosfinancialmarket.com/uploads/1/3/1/3/131398338/boboku.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40133843423.pdf
    • https://cdn.shopify.com/s/files/1/0437/3214/0186/files/99272383884.pdf
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/57393560526.pdf
    • https://cdn.shopify.com/s/files/1/0437/5658/5114/files/mejijobela.pdf
    • https://cdn.shopify.com/s/files/1/0431/7495/3120/files/usps_ecareer_candidate_profile_login.pdf
    • https://cdn.shopify.com/s/files/1/0430/7150/4537/files/metonymy_and_synecdoche_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0447/7042/7031/files/chapter_5_section_5_parliament_limits_the_english_monarchy.pdf
    • https://cdn.shopify.com/s/files/1/0438/9617/6795/files/bofokokaxujosom.pdf
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/juvijonanitabizuwolev.pdf
    • https://cdn.shopify.com/s/files/1/0430/8123/6634/files/dauntless_pangar_hammer_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/8563/4463/files/34465325012.pdf
    • https://cdn.shopify.com/s/files/1/0434/0419/8038/files/korean_learning_books_free.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_off0000e814.bin
c917b719aede61ad329cc39f5a0251f3393215dc7e9da29ac26374c824b75b66		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE814 5660 bytes
font_01_sfnt_off0000fb53.bin
6abd40c63faf3cb79a95925765c9d19e69013799a6f6d8b07ab8b4a544dacc81		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB53 15028 bytes

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