Malicious PDF — malware analysis report

Static analysis result for SHA-256 d82e710bddb8cda0…

MALICIOUS

PDF

33.7 KB Created: 2020-08-31 01:17:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49afad64c83e8c31a108b58808c5773e SHA-1: 971edc2c81d858d04f558058561df750703160d6 SHA-256: d82e710bddb8cda028d7079781b629be5878dd498286d1cfc94493ea46060b67
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 the same domain, indicating a link farm. One of the primary links, 'https://ttraff.cc/wix?keyword=peyote+the+divine+cactus+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting the intent is to drive traffic to malicious infrastructure.

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=peyote+the+divine+cactus+pdf
    • https://static.usrfiles.com/ugd/77941b_819aca7c5cdb4b078b062665b96239ae.pdf
    • https://static.usrfiles.com/ugd/05900a_c6934f7aaee64858850837957ecc2189.pdf
    • https://static.usrfiles.com/ugd/7603ae_971c76789bd841d1872abede087a06a0.pdf
    • https://static.usrfiles.com/ugd/6924eb_b213ab8cdb6644c7ae3eb15200e5d564.pdf
    • https://static.usrfiles.com/ugd/23e9be_3eb5b46599894d9b984aec821e66719e.pdf
    • https://static.usrfiles.com/ugd/b8c837_5efa5754b4034f06a5226a533c3911f5.pdf
    • https://static.usrfiles.com/ugd/a86d68_95f9455634f84a209143f968d56999a6.pdf
    • https://static.usrfiles.com/ugd/b8c837_bec6339463554b088c11928945fb956a.pdf
    • https://static.usrfiles.com/ugd/f0e51d_8751cde3f1b34698a641514149262799.pdf
    • https://static.usrfiles.com/ugd/b8c837_81d893d104914a2687a9c730930d7f40.pdf
    • https://static.usrfiles.com/ugd/b8c837_d9c380340e674d38b7994a786f2529dd.pdf
    • https://cdn.shopify.com/s/files/1/0427/8029/5334/files/8539282913.pdf
    • https://cdn.shopify.com/s/files/1/0436/9635/7530/files/properties_of_aggregates_in_concrete.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_off000047b8.bin
609c7a1aa8cb9bb81c7e323e07578acc5f59fc0e493b9b79bb7c686e4127921a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47B8 5276 bytes
font_01_sfnt_off000059b4.bin
edfdc4b000db99136969c34bf561a1051a692b9594fea3d4250d56c8eeef7305		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59B4 9584 bytes

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