Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccffaa589531b0b0…

MALICIOUS

PDF

71.8 KB Created: 2020-08-30 22:45:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54741788919648c8be8d690cf89094fb SHA-1: 63d0b50aa616615301f0d309688de81aed21c67f SHA-256: ccffaa589531b0b0ceb2d4689288e077bd4e9e183ed5750037300a587c012372
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to static.usrfiles.com, but one critical link to ttraff.ru is identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/wix?keyword=rogue+leveling+guide+p99', suggesting a lure to a scam or phishing page. The presence of numerous links indicates a link farm or SEO poisoning attempt to distribute the malicious redirector.

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.ru/wix?keyword=rogue+leveling+guide+p99
    • https://static.usrfiles.com/ugd/87b9a8_e59b2872322b417ca5050fbee3e0c733.pdf
    • https://static.usrfiles.com/ugd/33a16d_4608a73131b44788a03f2e7d9a6e3498.pdf
    • https://static.usrfiles.com/ugd/b56239_52ed25beaa244fbdb23e262c93de8ed7.pdf
    • https://static.usrfiles.com/ugd/02beb7_0846d909020841c7a5499145bef21fd8.pdf
    • https://static.usrfiles.com/ugd/3f80ec_aaa2d891a96a40e995184507bd516988.pdf
    • https://static.usrfiles.com/ugd/15d534_82a593a4f9514255b7a3c1e9f4ee3902.pdf
    • https://static.usrfiles.com/ugd/b8c837_4ce7df141ee543ad95be663f69fcede8.pdf
    • https://static.usrfiles.com/ugd/b8c837_31f242bce1ab455abd661613a259dda0.pdf
    • https://static.usrfiles.com/ugd/b8c837_77151b43802844539594be89dd31bea9.pdf
    • https://cdn.shopify.com/s/files/1/0440/8626/3960/files/kenmore_elite_dryer_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9432/7961/files/rhinestone_cowboy_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0437/6422/0055/files/22488969631.pdf
    • https://cdn.shopify.com/s/files/1/0430/6498/3701/files/22660226072.pdf
    • https://static.usrfiles.com/ugd/7dd30d_bed6c038cc6342cda7a5f527bfcce650.pdf
    • https://static.usrfiles.com/ugd/b8c837_c558efea355e44a2b477973a6003b584.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_off0000de92.bin
968e4e0ad3eb59099f9d608afd3dca661baf3113f4e020c5f1127357cb79bc52		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE92 4868 bytes
font_01_sfnt_off0000ef4b.bin
0e94a7c52524aba3df8b97b172964e2e2b2eff44379ff9d7e5173488669d691d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF4B 10240 bytes

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