Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5e8bec9084b7119…

MALICIOUS

PDF

42.6 KB Created: 2020-08-29 16:46:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94cb083c8649b98aa007e51347b876ea SHA-1: 78a9f8d377e7c68c30b5b3456c7cc98bb844b397 SHA-256: c5e8bec9084b7119bd8b7690f79f21d64c825449c7e503e8f968938d1bbd4481
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, https://ttraff.com/wix?keyword=acls+exam+questions+and+answers+2015, is the primary indicator of malicious intent. The document body, though heavily obfuscated, also contains this URL, reinforcing the redirection attempt. No scripts were extracted, and the file type is PDF, suggesting a social engineering lure to trick users into clicking the malicious link.

Heuristics 2

  • 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.
  • 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.com/wix?keyword=acls+exam+questions+and+answers+2015
    • https://static.usrfiles.com/ugd/b8c837_b110cfcaee064105be01a87234f9ce4e.pdf
    • https://static.usrfiles.com/ugd/b8c837_771c7bb782ae4ffabacd897664d6389f.pdf
    • https://static.usrfiles.com/ugd/b8c837_55c95d7425094209b1bd0b0057209363.pdf
    • https://static.usrfiles.com/ugd/b8c837_8aa6b8dff86a4d399fb9527455677dd3.pdf
    • https://cdn.shopify.com/s/files/1/0430/1943/6185/files/programa_para_unir_offline.pdf
    • https://cdn.shopify.com/s/files/1/0431/1236/6231/files/ipcc_report_sea_level_rise_2018.pdf
    • https://cdn.shopify.com/s/files/1/0432/4130/8319/files/james_bond_gun_barrel.pdf
    • https://cdn.shopify.com/s/files/1/0432/8180/9563/files/cita_previa_cap_el_vendrell.pdf
    • https://cdn.shopify.com/s/files/1/0431/9812/0096/files/7616637419.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_off00006646.bin
29fcacfdb57f5afbc3b262a0a5439f4e427bfb71775dbfef51c53e5469892db8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6646 5812 bytes
font_01_sfnt_off00007a0d.bin
4fa0a5cddeee7d3f73732b8ea1820c34fd7f38b2a748180c7b86f2711a0926bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A0D 10572 bytes

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