Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccc2e74da61b4733…

MALICIOUS

PDF

33.6 KB Created: 2020-08-31 11:22:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53e5562e497a28ff3ebcfa7488e6d801 SHA-1: a22713303a413440f23adb11dc11f69ef6474f1d SHA-256: ccc2e74da61b4733b417f0ed61593a8211ac063a7c8160c570a34e73ac8dca6d
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to its structure, which includes a mass external PDF link farm. One of the primary links, 'https://ttraff.cc/wix?keyword=caserias+ensangrentadas+buchones+vip', points to a known malicious redirector. The document body contains numerous embedded URLs, many of which lead to Shopify-hosted PDFs, suggesting a potential SEO manipulation or content distribution scheme. No scripts were extracted, and the document body itself is largely unreadable binary data.

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=caserias+ensangrentadas+buchones+vip
    • https://cdn.shopify.com/s/files/1/0433/9938/1146/files/sonisufemevesemuzulatunu.pdf
    • https://cdn.shopify.com/s/files/1/0440/4648/3606/files/7423701271.pdf
    • https://cdn.shopify.com/s/files/1/0428/3075/8054/files/geguragexoviwa.pdf
    • https://cdn.shopify.com/s/files/1/0432/3098/6400/files/matix.pdf
    • https://cdn.shopify.com/s/files/1/0434/0934/2621/files/25126736815.pdf
    • https://cdn.shopify.com/s/files/1/0428/7892/7011/files/93093029959.pdf
    • https://cdn.shopify.com/s/files/1/0432/6876/7907/files/67666979277.pdf
    • https://static.usrfiles.com/ugd/5ecadc_dc35e04b8d1e4fc3a167636951346fc1.pdf
    • https://static.usrfiles.com/ugd/0d2908_37a01ff507d94a709a5c1c6718740ce0.pdf
    • https://static.usrfiles.com/ugd/b8c837_97ced84cf33f4380a7f992ef97d4d2bd.pdf
    • https://cdn.shopify.com/s/files/1/0439/2222/7368/files/adobe_acrobat_reader_dc_gratis_italiano.pdf
    • https://cdn.shopify.com/s/files/1/0436/0772/0094/files/47242474310.pdf
    • https://cdn.shopify.com/s/files/1/0428/5592/3878/files/dungeon_keeper_2_cheats.pdf
    • https://cdn.shopify.com/s/files/1/0436/8020/2905/files/85507725603.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_off0000437a.bin
2f71b85112c87200849d10494a87665bebae33d0cd6720eaf66d7976ad383f70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x437A 5408 bytes
font_01_sfnt_off000055cc.bin
041ff7e572f18923fa7a0144589f7328fbc45359d2a8211369e2e0704fb4dffc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55CC 10456 bytes

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