Malicious PDF — malware analysis report

Static analysis result for SHA-256 8150d5b004f5d7ef…

MALICIOUS

PDF

38.7 KB Created: 2020-08-30 04:48:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4361490c022e12e8985c1ae9c2a1fb0d SHA-1: c54bac5d84a81534d5200197e9fc91bb5b541eca SHA-256: 8150d5b004f5d7efd9a0fc6b3f86ccb5a60ced9594e174ca39775f1071394920
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.cc/wix?keyword=radyal+matkap+tezgah%25C4%25B1'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to Shopify-hosted PDFs, suggesting an attempt to manipulate search engine results or distribute content. The document body, though heavily obfuscated, contains the same redirect URL and a reference to a product, reinforcing the lure. The primary attack pattern involves redirecting the user to a malicious site, likely for phishing or malware distribution.

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.cc/wix?keyword=radyal+matkap+tezgah%25C4%25B1
    • https://cdn.shopify.com/s/files/1/0430/4742/0066/files/fadiwuvudaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/vilofaloxisafokon.pdf
    • https://cdn.shopify.com/s/files/1/0435/5883/0229/files/searay_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/32049073008.pdf
    • https://cdn.shopify.com/s/files/1/0433/1080/9256/files/food_safety_training_certificate_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/0812/1242/files/3020299835.pdf
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/73788425338.pdf
    • https://cdn.shopify.com/s/files/1/0433/8080/1701/files/80081927380.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/86895771613.pdf
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/xamesefetikefidif.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_off00005646.bin
00b5bdc20ce1ad6d6e1703659d969342284195454014a81ccbbe1ea343793b25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5646 5352 bytes
font_01_sfnt_off00006874.bin
c8d8f9a9f80dc488303f8c5418bb97f001f79302dfd4993d8460bfc5b235edf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6874 11872 bytes

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