Malicious PDF — malware analysis report

Static analysis result for SHA-256 3deec5e20d090a09…

MALICIOUS

PDF

36.7 KB Created: 2020-08-17 10:47:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75f4cdecf9b2f3441a2bdd8906593c27 SHA-1: 9d8858f60accd21bb7b33fefecf9b4e5133b33b5 SHA-256: 3deec5e20d090a097a3f060f3495c2c95fb7d760c02188409636634f094c1869
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains the same URL. This suggests the primary purpose is to redirect the user to a malicious site, likely for further exploitation or phishing. The presence of numerous other Shopify links indicates a potential SEO poisoning or link farm strategy to obscure the malicious destination.

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=carbon%2527+s+golden+malted+waffle+maker+manual
    • http://files.duanebrownlaw.com/uploads/1/3/1/4/131483253/2887604.pdf
    • http://files.brifkin.com/uploads/1/3/0/9/130968906/kobebiloto_jubiba_digurut.pdf
    • https://cdn.shopify.com/s/files/1/0432/8099/0366/files/generos_periodisticos_informativos.pdf
    • https://cdn.shopify.com/s/files/1/0432/2266/3331/files/lafakevogejerijujiwamab.pdf
    • https://cdn.shopify.com/s/files/1/0430/7845/1351/files/75048043516.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/xijoli.pdf
    • https://cdn.shopify.com/s/files/1/0428/1358/7622/files/simple_english_vocabulary.pdf
    • https://cdn.shopify.com/s/files/1/0439/1682/0648/files/90191575444.pdf
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/xorebijezabe.pdf
    • https://cdn.shopify.com/s/files/1/0434/9453/9429/files/51768481205.pdf
    • https://cdn.shopify.com/s/files/1/0430/9080/4893/files/78121365517.pdf
    • https://cdn.shopify.com/s/files/1/0429/8938/7939/files/60520743955.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/ansiedad_social_libro.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_off00004f4b.bin
5628e046899d0e3021b05cf5e5e02f02fe48d398b9dfcf5fe2ee6ed48ebb8e5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F4B 5460 bytes
font_01_sfnt_off000061e1.bin
a21c19f276a420e458a798338a885cd1cda2be99d539c7997daa953a12aa5eaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61E1 10560 bytes

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