Malicious PDF — malware analysis report

Static analysis result for SHA-256 e415e9de5dc41721…

MALICIOUS

PDF

37.9 KB Created: 2020-09-02 04:09:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5efa7fd302da4314c09dc03850f208e4 SHA-1: e1f50c100c1b4c3c1280f93ce6d1ed7999d43615 SHA-256: e415e9de5dc417218c2892c711add4a511f9f16af3f862249afcc2b00fb774f2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this, and 'PDF_SEO_LINK_FARM' indicates a large number of outbound links, many of which are to benign Shopify domains but likely serve to obscure the malicious intent. The document body contains garbled text and a reference to the malicious URL, suggesting it's a lure to a malicious site.

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/pify?keyword=exultate+deo+alessandro+scarlatti+pdf
    • https://cdn.shopify.com/s/files/1/0437/2230/9786/files/asset_lifecycle_management_process.pdf
    • https://cdn.shopify.com/s/files/1/0431/3032/3101/files/developing_management_skills_9th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0427/9789/1751/files/viridenedevotesidebuli.pdf
    • https://cdn.shopify.com/s/files/1/0438/2231/7728/files/6577151253.pdf
    • https://cdn.shopify.com/s/files/1/0434/3712/9895/files/fire_works_animations.pdf
    • https://cdn.shopify.com/s/files/1/0436/5264/5017/files/98051917939.pdf
    • https://cdn.shopify.com/s/files/1/0437/2758/5430/files/fipijutemofemeteseto.pdf
    • https://cdn.shopify.com/s/files/1/0433/5281/7832/files/dalexabusejufogabibi.pdf
    • https://cdn.shopify.com/s/files/1/0437/4557/5061/files/jademufuxudu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7887/7337/files/template_newsletter_per_outlook.pdf
    • https://cdn.shopify.com/s/files/1/0433/9371/2286/files/19581212688.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69298849274.pdf
    • https://cdn.shopify.com/s/files/1/0431/4192/2982/files/jopifirezomemitoziwaz.pdf
    • https://cdn.shopify.com/s/files/1/0430/5308/8921/files/nubomipu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3506/5510/files/telazabafijun.pdf
    • https://cdn.shopify.com/s/files/1/0428/3020/0991/files/26172434200.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_off0000539e.bin
d6ac26ec2fd3f49c766e1e5e8ca60548da09897fdaafaa144d29ebba546199c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x539E 5172 bytes
font_01_sfnt_off00006552.bin
6c7ea740a6b7c0b52ba7e60d51212f8b2456be2e198898e4da097307c84aff2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6552 10784 bytes

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