Malicious PDF — malware analysis report

Static analysis result for SHA-256 460252c717b21396…

MALICIOUS

PDF

43.6 KB Created: 2020-08-31 01:02:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 780c59e74327b3602b66fe3975eea8de SHA-1: 3b4c4028c5933e6b3f709cde3098f2a3a0c38dea SHA-256: 460252c717b213968c4d45fc24ea778bb29b2c8a39459012c7c38fe02ca35bcf
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination of the malicious content. The document body, though heavily obfuscated, contains the same URL and a reference to 'Actores de outlander', suggesting a lure. The presence of numerous other links to static.usrfiles.com, while individually benign, contributes to a link farm pattern, potentially for SEO manipulation or to host further malicious content.

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.ru/wix?keyword=actores+de+outlander
    • https://static.usrfiles.com/ugd/7d1dc9_b63c3d499b09458d91e19441a3340793.pdf
    • https://static.usrfiles.com/ugd/b8c837_a47a680e4ec94322a405f54667ff81ba.pdf
    • https://static.usrfiles.com/ugd/a838c0_767a3dfdeeb447a0aa0d0ab9caf65bcf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vakijuxek.pdf
    • https://static.usrfiles.com/ugd/c0fca2_d8a72467a558480bb86e12c37a89d36a.pdf
    • https://static.usrfiles.com/ugd/b8c837_6d3b184bea27474bb7197d5c0a753128.pdf
    • https://static.usrfiles.com/ugd/738632_d6cd6380d6e54b358831a413685e6a65.pdf
    • https://static.usrfiles.com/ugd/f515ca_76b0faeca560422181e91006c8079196.pdf
    • https://static.usrfiles.com/ugd/f63f29_72b8c78bcf42485e9d48d73768c7feb7.pdf
    • https://static.usrfiles.com/ugd/e02969_8a76ca7502524ac693955f26386d19f7.pdf
    • https://static.usrfiles.com/ugd/6d59ab_39df7fcb9447459fbff5f33f49e6f34b.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_off00006158.bin
3becd6295f288cff1d671f2a439b60b6c78ab7f09ec106d95b59096d325e7f83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6158 4924 bytes
font_01_sfnt_off00007219.bin
9579b692adc3bbf55a610ec56f817323d9ecb1433ee883f4597c7d9e8a2394f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7219 15452 bytes

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