Malicious PDF — malware analysis report

Static analysis result for SHA-256 49421de55092dfd9…

MALICIOUS

PDF

39.1 KB Created: 2020-08-31 08:54:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ff0ffe7956ecf5ca4e971142c92390c SHA-1: ced5bec7488d88fabd7dacc27be9c4daac6f2db3 SHA-256: 49421de55092dfd96c435c8f6e4227eee5033ce1830adedfb4ea318842752e1f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used to create link farms for SEO manipulation or to distribute malicious content. One of the primary links directs to a known malicious redirector, 'ttraff.cc', which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains text referencing 'Zelda breath of the wild' and the malicious URL, suggesting a lure to entice clicks.

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/wix?keyword=zelda+breath+of+the+wild+a+royal+rec
    • https://static.usrfiles.com/ugd/ee9d3f_87f619d0cc08414292b563b02b4d5a6a.pdf
    • https://static.usrfiles.com/ugd/2813e2_4fb6db120db346c89bc7ec446d3944de.pdf
    • https://static.usrfiles.com/ugd/b8c837_f51b578cdb8a458c946aa13a31110476.pdf
    • https://static.usrfiles.com/ugd/b8c837_bd3b8e362a2e4060896fd3ae632f73cd.pdf
    • https://cdn.shopify.com/s/files/1/0429/6297/6921/files/31512793462.pdf
    • https://static.usrfiles.com/ugd/01bc73_aaafc0ea5401467ab671de1d986a547a.pdf
    • https://static.usrfiles.com/ugd/906e9f_8444ea44c0f148e095c75aac218d194d.pdf
    • https://static.usrfiles.com/ugd/9c0842_cded7eca423d4064a4339945e968ed69.pdf
    • https://static.usrfiles.com/ugd/6da380_110433902de14b4685683ad553a4de6c.pdf
    • https://static.usrfiles.com/ugd/b8c837_2aa55ffe92e34585b543397b2d7dad97.pdf
    • https://static.usrfiles.com/ugd/b8c837_bfa3c3610ba742a2be88244e439d246f.pdf
    • https://static.usrfiles.com/ugd/930050_7d4992347e184af0b40806ccf3b0f3d1.pdf
    • https://static.usrfiles.com/ugd/e2f197_889cdecedbbf4561bd853618cd2659e9.pdf
    • https://static.usrfiles.com/ugd/accd1f_6586db7f2a5e4546a27839d8cf5b0224.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_off00005ca6.bin
b61535e90684adad88067d8ca6dfc5d542bbba088b8d2cf65740c5a03f2eb2de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA6 5224 bytes
font_01_sfnt_off00006e74.bin
7121ccf3a7363cad6f7351870b369cd628be07bea13a34f54054d69c1da423b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E74 9740 bytes

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