Malicious PDF — malware analysis report

Static analysis result for SHA-256 46dab85e7aea1e6a…

MALICIOUS

PDF

36.2 KB Created: 2020-09-01 00:12:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e26ff84b71f4765c187b9b394e13986 SHA-1: e477b7792c9c61e16e3409d193df2ff3296d728b SHA-256: 46dab85e7aea1e6a24fe7635163497279da5ff6d8d2c0f49827b9e2eecbbb199
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to static.usrfiles.com, but one critical link points to a known malicious redirector at ttraff.com. This suggests a link farm designed to obscure the final destination and potentially engage in SEO poisoning or drive traffic to malicious sites. The document body itself is heavily obfuscated and contains the malicious URL.

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/wix?keyword=angel+eyes+wet+wet+wet
    • https://static.usrfiles.com/ugd/b8c837_f7b557e2baab4bf5881c387455893c6a.pdf
    • https://static.usrfiles.com/ugd/b8c837_53e8f6c744ad4c91b07e0a08e93016c5.pdf
    • https://static.usrfiles.com/ugd/e78b77_f83e34da2adf487e926d1a7ecc599b59.pdf
    • https://static.usrfiles.com/ugd/9e53d4_668c6ce72c9b4caca4bff58d6b26f4f2.pdf
    • https://static.usrfiles.com/ugd/b8c837_ef6800b82cb14f5998f159511e5d840a.pdf
    • https://static.usrfiles.com/ugd/2ca09c_da2d6d349485409488e81aeac8d08d9b.pdf
    • https://static.usrfiles.com/ugd/5fd5c1_d28f4aa3c6ce48e18929c2a461be7208.pdf
    • https://static.usrfiles.com/ugd/b8c837_e24ce86c8fa04a588c867cc4fe658ea9.pdf
    • https://static.usrfiles.com/ugd/b8c837_07d0c78823af452eb49be98f48523b22.pdf
    • https://cdn.shopify.com/s/files/1/0431/5486/6333/files/12568947793.pdf
    • https://cdn.shopify.com/s/files/1/0429/2519/5427/files/traductor_ingles_archivos.pdf
    • https://cdn.shopify.com/s/files/1/0430/4040/7701/files/8622858524.pdf
    • https://cdn.shopify.com/s/files/1/0431/0017/6544/files/ff14_act_fix.pdf
    • https://static.usrfiles.com/ugd/b8c837_c06972449b6b44bb9edbb6b3db3e68fc.pdf
    • https://static.usrfiles.com/ugd/dfb5f8_eb3e805aa64a44fa991e85d947a6e699.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_off00005184.bin
30508fdd7c6831edfb3c56e39701f9470a75984c83bf822aecc199c561956c3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5184 4728 bytes
font_01_sfnt_off000061d0.bin
6ec6fb812db0313776f3aff038562f51d811aad5d0f6c00ea30dc9ef006f12a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x61D0 10016 bytes