Malicious PDF — malware analysis report

Static analysis result for SHA-256 badf3313bea36b42…

MALICIOUS

PDF

41.6 KB Created: 2020-08-31 05:43:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d40f495856147cdadc7911e5e2a25cf SHA-1: 687970cd31f7f33adda1bf244bddbf40f78f262e SHA-256: badf3313bea36b423f0a5fb7299c185b0cdb45d8b5915c507257fbba47275068
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wix?keyword=how+to+conk+your+hair'. Additionally, it exhibits a PDF link farm heuristic, with numerous links pointing to Shopify-hosted PDFs. The document body, though heavily obfuscated, contains the same lure text and the malicious URL, suggesting an attempt to trick users into clicking the link. No scripts were extracted, and the primary malicious activity appears to be redirection via embedded links.

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=how+to+conk+your+hair
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xakikalimakimoxe.pdf
    • https://cdn.shopify.com/s/files/1/0431/8868/2915/files/munolexeforinukebati.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/wetekevizidezubopewori.pdf
    • https://cdn.shopify.com/s/files/1/0433/5036/0215/files/kafilejufapezuzo.pdf
    • https://static.usrfiles.com/ugd/b8c837_38708ea07c0845c2a202dda7ae14a2e3.pdf
    • https://cdn.shopify.com/s/files/1/0432/9255/7467/files/29133237663.pdf
    • https://cdn.shopify.com/s/files/1/0429/3348/5727/files/badinage_bozza.pdf
    • https://cdn.shopify.com/s/files/1/0430/7219/2669/files/9547334845.pdf
    • https://cdn.shopify.com/s/files/1/0427/5660/4070/files/cursograma_analitico_ejemplo.pdf
    • https://cdn.shopify.com/s/files/1/0434/5567/6580/files/16968382339.pdf
    • https://static.usrfiles.com/ugd/4d400c_ee3b1d146ae54bd2bfa4fe0d6e616693.pdf
    • https://static.usrfiles.com/ugd/30e015_b9e573c585e24a5192224350ec2fefaf.pdf
    • https://static.usrfiles.com/ugd/24853a_67e14ebfbfd144d584fb79e303385b29.pdf
    • https://static.usrfiles.com/ugd/ecec20_979facbea6ea45ba840420b6db6cd034.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_off0000672f.bin
0b375e07aed37e32152f858e563cab2013a7e023df179f7674d80b85318d81f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x672F 4896 bytes
font_01_sfnt_off000077de.bin
3d761f6447493e3026f277cc177d32f09101f65861b3ab7fe0fc80b05855a52d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77DE 9996 bytes

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