Malicious PDF — malware analysis report

Static analysis result for SHA-256 b62a8f5449a60573…

MALICIOUS

PDF

43.2 KB Created: 2020-08-31 04:42:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53ee3b285c398e72e61044fbd65fe9b5 SHA-1: 7a5923770dce28daab4c9ee4222c86562f707886 SHA-256: b62a8f5449a6057319d257353b94f13ca7142c7bb4e6a1d07989330df06610fe
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=reglage+ralenti+pompe+injection+bosch'. This indicates an attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous other PDF links, while some are benign, suggests a link farm strategy to obscure the primary malicious destination.

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=reglage+ralenti+pompe+injection+bosch
    • https://cdn.shopify.com/s/files/1/0434/0944/0933/files/57697506620.pdf
    • https://cdn.shopify.com/s/files/1/0437/6117/2631/files/47943393774.pdf
    • https://cdn.shopify.com/s/files/1/0427/8085/2383/files/57014736761.pdf
    • https://cdn.shopify.com/s/files/1/0434/8015/4269/files/digurinejiwebowoduwe.pdf
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/pubasujarudewuz.pdf
    • https://cdn.shopify.com/s/files/1/0432/4563/3691/files/dojogokizoxejuvisob.pdf
    • https://static.usrfiles.com/ugd/b8c837_7f726ef6f4fc4e1ab773155ee955dfe2.pdf
    • https://static.usrfiles.com/ugd/e02969_4506322054da4050ae2f608721d5a46d.pdf
    • https://static.usrfiles.com/ugd/b8c837_4a52eb78221f4fe49f00f493dab48e00.pdf
    • https://static.usrfiles.com/ugd/b8c837_7af8bd65cb784c87af0e8e52cf512c72.pdf
    • https://static.usrfiles.com/ugd/b8c837_131b139a46394c5aaed18cd7a6a23c7e.pdf
    • https://cdn.shopify.com/s/files/1/0430/5666/0633/files/iti_ka_full_form_kya_h.pdf
    • https://cdn.shopify.com/s/files/1/0430/1763/3945/files/90361984341.pdf
    • https://cdn.shopify.com/s/files/1/0435/9634/9602/files/15025168184.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_off00006ad7.bin
b18d212562fc785ea8faee5b64f4fae17725cffca3662dea6dce89d53b33418a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD7 5568 bytes
font_01_sfnt_off00007d9f.bin
4aa8a6f0ef733ad77c8fa4cc28aceb2c5bf2df47f438881377f59b3342cd6c96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D9F 10328 bytes

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