Malicious PDF — malware analysis report

Static analysis result for SHA-256 e02ad137b404e4a6…

MALICIOUS

PDF

34.1 KB Created: 2020-08-29 18:12:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64c5af869ce29e2b6b6e97976258ae18 SHA-1: d40832a6750ebb1b03df0fcc2d9f4aac41131bfb SHA-256: e02ad137b404e4a63454ff29644ad8be114bd6aa94adb961df13901d17161fcf
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, many of which point to what appears to be a link farm designed to mimic academic or professional resources. One of the primary links, 'https://ttraff.me/wix?keyword=contemporary+advertising+14th+editio', is flagged as a malicious redirector. This suggests the document's purpose is to drive traffic to malicious infrastructure under the guise of providing access to 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.me/wix?keyword=contemporary+advertising+14th+editio
    • https://static.usrfiles.com/ugd/b8c837_afe59185dfcb4e8d95f30066b694701f.pdf
    • https://static.usrfiles.com/ugd/b8c837_e6954d8db25e43c4a0a423206b51169f.pdf
    • https://static.usrfiles.com/ugd/b8c837_41e8145f2cca49a898bf42a3af490ec6.pdf
    • https://static.usrfiles.com/ugd/b8c837_9874a02a9dda4bfd9f9a8b08fcd52cab.pdf
    • https://static.usrfiles.com/ugd/b8c837_cdfc22dafde64875ada98deafc55b3ca.pdf
    • https://cdn.shopify.com/s/files/1/0434/0842/5123/files/gaspard_de_la_nuit_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0434/4253/6598/files/ririziselora.pdf
    • https://cdn.shopify.com/s/files/1/0431/7567/4012/files/audit_risk_journal.pdf
    • https://cdn.shopify.com/s/files/1/0433/0654/9406/files/68183862558.pdf
    • https://cdn.shopify.com/s/files/1/0438/1986/0125/files/17470985240.pdf
    • https://static.usrfiles.com/ugd/3e0cb9_7ab771c891bd4d9280951f6d75209744.pdf
    • https://static.usrfiles.com/ugd/b8c837_664361dce9974642b505ccc14f54d4f4.pdf
    • https://static.usrfiles.com/ugd/b8c837_8ce3de2a0dbe44b98f7ad2a3844927c0.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_off00004660.bin
cf25d8cb4f5eb204bbe2fabb13b7ba4152a73005cebde151b20d0a367e5cbad7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4660 5548 bytes
font_01_sfnt_off00005929.bin
d0b14029c21848aa4972b3ea18949c803b6597ffdde1ddb1197ed42ad58c4ca7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5929 10168 bytes

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