Malicious PDF — malware analysis report

Static analysis result for SHA-256 44eb11cc67db6eba…

MALICIOUS

PDF

61.6 KB Created: 2020-08-31 16:13:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 866cbcc05b797d23ed365f942aedc9e4 SHA-1: 4999f4c65c482d8f507a01745ee9662cb871075e SHA-256: 44eb11cc67db6eba44aafaf7c920f078de1a113b75925d663545bb0ad029d781
120 Risk Score

Malware Insights

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

The PDF file contains embedded links that point to a redirector URL, which is a common tactic for phishing and malware distribution. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this, and the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation to increase visibility. The document body, though heavily obfuscated, contains text related to 'income statement spreadsheet template' and the malicious URL, suggesting a lure to trick users into clicking the link.

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.com/wix?keyword=income+statement+spreadsheet+template
    • https://static.usrfiles.com/ugd/856cea_fdf4804387b240b6a09e2deedafdad7e.pdf
    • https://static.usrfiles.com/ugd/b8c837_344215e993c5403eb9505e7d16cfb44e.pdf
    • https://static.usrfiles.com/ugd/e2b09b_0d31a68db93a419db2f80e0fd081234e.pdf
    • https://static.usrfiles.com/ugd/b8c837_912e68264b6c4a408508b8b499f5425b.pdf
    • https://static.usrfiles.com/ugd/bdeb4c_5d635567015d4cfaaa86102c876962ee.pdf
    • https://static.usrfiles.com/ugd/856cea_db8f4f7a3281426da2a2c56d42401651.pdf
    • https://static.usrfiles.com/ugd/b8c837_ec98312f23d4465883f3d64519f1ab75.pdf
    • https://static.usrfiles.com/ugd/b8c837_58411345d1bd491490161519b197cc46.pdf
    • https://static.usrfiles.com/ugd/b8c837_1b71d75ab8ef4596b2a344b295b1484e.pdf
    • https://static.usrfiles.com/ugd/20d83a_d19f22e8517d4e9eb7992192154a1bf1.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_off00009f05.bin
aec6f6fb00cfdc6c505b2e229c07516b80173802295ec01116aa4038c2989ec2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F05 4992 bytes
font_01_sfnt_off0000afb0.bin
2aab51b2580efdd4a886a1cda5ba105ada0fba0b2b1705bfedd086314598bbe7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFB0 13492 bytes
font_02_sfnt_off0000db52.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB52 4324 bytes

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