Malicious PDF — malware analysis report

Static analysis result for SHA-256 f79aa1342bd95f8c…

MALICIOUS

PDF

41.0 KB Created: 2020-08-21 18:57:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5743823c594fd878b8918794e691db51 SHA-1: 3b47e872c726f7afb58751bf5920e7da7f768792 SHA-256: f79aa1342bd95f8ca82ef8a7c50c218adc3abb2d9338bf5d8b18263a9e02b461
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector, indicating a phishing or scam attempt. The embedded URL 'https://ttraff.com/pify?keyword=medical+store+inventory+system+project+report' is the primary indicator of malicious intent. The document body, though heavily obfuscated, contains this URL and other links, suggesting a lure to external malicious content. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=medical+store+inventory+system+project+report
    • http://noveki.tournoidevignoles.com/uploads/1/3/1/3/131383483/nujuxavulu.pdf
    • http://files.petstylz.com/uploads/1/3/0/9/130969728/nedotutiwazu_tibobobuten.pdf
    • http://files.albanynybellydancerayperializarin.com/uploads/1/3/0/8/130814115/49589627bb28b.pdf
    • https://cdn.shopify.com/s/files/1/0431/2629/2634/files/34063288870.pdf
    • https://cdn.shopify.com/s/files/1/0431/9631/7845/files/vukagolofomewesubod.pdf
    • https://cdn.shopify.com/s/files/1/0439/9081/0782/files/free_time_worksheet_elementary.pdf
    • https://cdn.shopify.com/s/files/1/0465/1561/7950/files/printable_board_game_templates_for_teachers.pdf
    • https://cdn.shopify.com/s/files/1/0434/5652/8544/files/69366372602.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8037/files/gesividadix.pdf
    • https://cdn.shopify.com/s/files/1/0433/4475/6901/files/29546538933.pdf
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/pazamejasezivexotodu.pdf
    • https://cdn.shopify.com/s/files/1/0436/1424/0931/files/loi_binomiale_1ere_s.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_off00006278.bin
bc77d79d37c9e9d33d770b7c178a296f4bfd8660be92d1124349169b1667bd87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6278 5460 bytes
font_01_sfnt_off0000750a.bin
6e71a397477d6837956db14a884a7cf6c876a9559c199dd5f36043d6b01916a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x750A 10020 bytes

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