Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc1196e18479dcc1…

MALICIOUS

PDF

39.6 KB Created: 2020-08-30 10:12:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 984a246b0a51cbff804ddc503f20b4ab SHA-1: 1f694d5638b2c789227436c920fff24b5362be8b SHA-256: cc1196e18479dcc1081c5d8a72949ed3e74a3890f11e5cf1ed2155f5e8682c0b
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the primary links, 'https://ttraff.cc/wix?keyword=o+reilly+sql+cookbook+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to the book title and the redirector URL, suggesting a lure to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=o+reilly+sql+cookbook+pdf
    • https://static.usrfiles.com/ugd/b8c837_382e334395aa4a4f8bcb044adaced5c0.pdf
    • https://static.usrfiles.com/ugd/b8c837_e79975456ec1486fa2005afdf997e0e5.pdf
    • https://static.usrfiles.com/ugd/b8c837_51a5ce00bc7a44cd920063d5dd19e3c7.pdf
    • https://static.usrfiles.com/ugd/b8c837_7007b2bdd1ef45e0a6831b530c89963a.pdf
    • https://static.usrfiles.com/ugd/565485_f8e2d95dc23d4191814186be19d091b2.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_e88eff06fa524d9ab6abd5fbd8d12ee7.pdf
    • https://static.usrfiles.com/ugd/a382ee_9fb3c23e664045338c88936448dfc380.pdf
    • https://static.usrfiles.com/ugd/b0b521_239eb1ed36bf42cfbf7320ba3d10806d.pdf
    • https://static.usrfiles.com/ugd/2e79a6_29823255f54649fc881199d5e5977a1c.pdf
    • https://static.usrfiles.com/ugd/b8c837_19ee4eedaeb04954a20a3e07c9d8c732.pdf
    • https://static.usrfiles.com/ugd/b8c837_986d6d3f0bde48f389dc74c1d2969c71.pdf
    • https://static.usrfiles.com/ugd/b8c837_84f7b12aec2a4cd1b38058a6166f8b24.pdf
    • https://static.usrfiles.com/ugd/b80405_d0341f64497f429683850ffaba321bfe.pdf
    • https://static.usrfiles.com/ugd/b8c837_2ee03e23c7834b4badc25baf5bd52fd3.pdf
    • https://static.usrfiles.com/ugd/b8c837_311f7dd521204dd58dfe8bf5f63acd8d.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_off00005cd4.bin
2383c7f89bc224c3ee0a8a5b15cd5b5f9a130125d1135e9cadf46497317df15e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD4 5396 bytes
font_01_sfnt_off00006f40.bin
a5a01e18ab2a5db441e0b15523a8426e6382ec9222683c31d51405db302e0db6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F40 10060 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.