Malicious PDF — malware analysis report

Static analysis result for SHA-256 54466cc7ab4c0a0c…

MALICIOUS

PDF

38.5 KB Created: 2020-08-12 00:20:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ddaeff7ac2f935da776521eb641c89f SHA-1: 2893b68f6ce525b077b231531001da2ea498ba4f SHA-256: 54466cc7ab4c0a0cd174e51616f0a52ad5a813923ea0c0807cc23bb92b3adf61
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.com/pify?keyword=portable+biogas+plant+design+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking PDF link, suggesting a social engineering lure to drive traffic to malicious infrastructure.

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=portable+biogas+plant+design+pdf
    • http://files.cemcaracing.com/uploads/1/3/1/4/131406060/bejupanur-febif-kokoro-wexaz.pdf
    • http://files.grandbendsoccer.ca/uploads/1/3/1/8/131871894/mirelukexuger.pdf
    • http://files.saharasistasols.com/uploads/1/3/1/4/131407974/1c9fada014e6316.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/94999282565.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7905/files/menuzatewobelomop.pdf
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/daxit.pdf
    • https://cdn.shopify.com/s/files/1/0429/4161/2199/files/72386271036.pdf
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/jupig.pdf
    • https://cdn.shopify.com/s/files/1/0437/1503/5291/files/kumakoj.pdf
    • https://cdn.shopify.com/s/files/1/0437/4095/4773/files/momodada.pdf
    • https://cdn.shopify.com/s/files/1/0430/9948/8410/files/xevesamamino.pdf
    • https://cdn.shopify.com/s/files/1/0427/6197/8023/files/37._24804_115._800155.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5708/files/83231281410.pdf
    • https://cdn.shopify.com/s/files/1/0431/7495/3120/files/usps_ecareer_candidate_profile_login.pdf
    • https://cdn.shopify.com/s/files/1/0431/4133/3147/files/penuxogedamatiz.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_off000058eb.bin
73e0d5a2dc92dd31e0d1b42babf2d652037e39ebc621bb878502be4de37b65fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58EB 5348 bytes
font_01_sfnt_off00006b1e.bin
9fb4d7f1ff0f74e68bcd431fb2ebdc0bac0acaa7d8ff8f74a6e913aafc9707f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B1E 10000 bytes

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