Malicious PDF — malware analysis report

Static analysis result for SHA-256 575667af69a715e6…

MALICIOUS

PDF

38.3 KB Created: 2020-08-24 02:57:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4edc55a40e395d5e55312da6841007ce SHA-1: dcc300af3969830a1a64747dfdb42672106ccdd9 SHA-256: 575667af69a715e60a94388fae91460ff96a49510c9cc9f0eda363d4dd85524f
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector at 'ttraff.cc'. This redirector is likely used to obscure the final destination and potentially deliver a malicious payload. The document body, though heavily obfuscated, contains the same lure text and URLs, reinforcing the malicious intent.

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.cc/pify?keyword=intro+html5+template+free
    • http://files.ctpartyrental.com/uploads/1/3/1/3/131381555/20ff1.pdf
    • https://cdn.shopify.com/s/files/1/0434/3532/7653/files/kuwulo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8259/6008/files/26682676267.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42479515564.pdf
    • https://cdn.shopify.com/s/files/1/0436/1895/9523/files/37142750840.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/79915271246.pdf
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/tezufagibed.pdf
    • https://cdn.shopify.com/s/files/1/0434/7920/3992/files/alanina_funcion.pdf
    • https://cdn.shopify.com/s/files/1/0437/6471/1575/files/83447636058.pdf
    • https://cdn.shopify.com/s/files/1/0433/5190/0310/files/gusoluz.pdf
    • https://cdn.shopify.com/s/files/1/0457/5130/4348/files/bba_syllabus_ipu_2018.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_off00005a3f.bin
247070719e5aea9a4fd5b97779e9e65911854ca37386893ef850d57819b71f22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3F 5024 bytes
font_01_sfnt_off00006b25.bin
40463e9d9afa63329749c381552552eeac3cea49e097fe0e58b03b39c8310dc6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B25 9816 bytes

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