Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0a02863345ca8e4…

MALICIOUS

PDF

40.8 KB Created: 2020-08-02 23:40:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffa4aba66836e55de9fd815de3bc457a SHA-1: 68d08bfef9464949346e5e45f1c422b8485ea258 SHA-256: c0a02863345ca8e403b75a99c400910221b12550d4a34cfc8af8ddc5e62fdda3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDF files. One prominent link, 'https://ttraff.ru/pify?keyword=adobe+pdf+printer+mac', is flagged as a malicious redirector. This suggests the document is part of a link farm designed to redirect users to malicious infrastructure, likely for phishing or malware distribution. The presence of numerous links and the specific malicious redirector indicate a coordinated effort to lure victims.

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.ru/pify?keyword=adobe+pdf+printer+mac
    • http://files.fisherexperience.com/uploads/1/3/1/0/131070452/tepavokinovagulixoku.pdf
    • http://files.confederateplanet.com/uploads/1/3/0/7/130775866/19197425dd83.pdf
    • http://files.cdcatparker.com/uploads/1/3/1/4/131437886/gukebizerivajijafep.pdf
    • https://cdn.shopify.com/s/files/1/0428/5880/7455/files/mitor.pdf
    • https://cdn.shopify.com/s/files/1/0436/4494/4542/files/zapupurovar.pdf
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/34861020389.pdf
    • https://cdn.shopify.com/s/files/1/0428/9573/6988/files/xubudufufinibobufita.pdf
    • https://cdn.shopify.com/s/files/1/0429/2925/8649/files/jomelumuveke.pdf
    • https://cdn.shopify.com/s/files/1/0431/3258/4098/files/50366218139.pdf
    • https://cdn.shopify.com/s/files/1/0432/4101/3415/files/59058887607.pdf
    • https://cdn.shopify.com/s/files/1/0430/1655/2605/files/43731264749.pdf
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/400545977.pdf
    • https://cdn.shopify.com/s/files/1/0430/0508/3811/files/novovodunugek.pdf
    • https://cdn.shopify.com/s/files/1/0428/8076/2023/files/tamazafefurepisedeb.pdf
    • https://cdn.shopify.com/s/files/1/0438/1592/7965/files/71916966431.pdf
    • https://cdn.shopify.com/s/files/1/0436/5297/2697/files/kugota.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_off00006307.bin
8fbc79e759163f1e7138acc605cfadc47332c28977c5c2b52e0cc45e206cf32f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6307 5220 bytes
font_01_sfnt_off000074b1.bin
d4f7db9beb6784bf0f03689f05cc025cc0908553b57839a2217ccd9cb94a93fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74B1 9884 bytes

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