Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b1786b07fb03a92…

MALICIOUS

PDF

42.6 KB Created: 2020-08-29 22:38:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b8ce27da29bc05efc5734ba4d0d8702 SHA-1: 7d3eba32f8bef552eddbb2f3b9c9c14dc0b79225 SHA-256: 2b1786b07fb03a9266bbccbafdab8ae85c01632cc2314062d8048c59cca32364
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.cc/wix?keyword=no+freaking+speaking. The document body is heavily obfuscated, but the presence of numerous links suggests a social engineering attempt to drive traffic to potentially harmful sites. No scripts were extracted from this sample.

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=no+freaking+speaking
    • https://cdn.shopify.com/s/files/1/0430/9526/1348/files/nexovagoluderifor.pdf
    • https://cdn.shopify.com/s/files/1/0439/6960/9886/files/68436478178.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/exercices_corrigs_barycentre.pdf
    • https://cdn.shopify.com/s/files/1/0433/5294/8901/files/caterpillar_manuals.pdf
    • https://static.usrfiles.com/ugd/b8c837_264070d4c1084d1aa4fd2c8dec6a0501.pdf
    • https://static.usrfiles.com/ugd/b8c837_7339051676e34dbe9b5a7647ef9d821e.pdf
    • https://static.usrfiles.com/ugd/7598fa_d7f8f0a612bf4580976d4005b2c81114.pdf
    • https://static.usrfiles.com/ugd/b8c837_c180215a48c347af82da553412fb9ca4.pdf
    • https://static.usrfiles.com/ugd/3aee12_7b15c3bbacc14bc7b583ef608f60321c.pdf
    • https://static.usrfiles.com/ugd/b8c837_75f3973233394ea49b7155a9f64848ea.pdf
    • https://static.usrfiles.com/ugd/b8c837_3cf5844647b943c3976e123e49d235b6.pdf
    • https://static.usrfiles.com/ugd/b8c837_1de383fdc8ff445f9343ab234c04cb5e.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c96.bin
34b1c9a38655a16644de2c6224c140facb60554df829e044216a8240cbd6daa4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C96 4780 bytes
font_01_sfnt_off00006ce2.bin
a980693a8e521c600d0f6853d5a61249fee01c2f7dd2f711503c9f77528a9793		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE2 10240 bytes
font_02_sfnt_off00008fe6.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE6 4324 bytes

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