Malicious PDF — malware analysis report

Static analysis result for SHA-256 32d12cf8c3a19a8c…

MALICIOUS

PDF

65.4 KB Created: 2020-08-25 19:04:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54b8bb22891e892cb9e12ae82e73861f SHA-1: d5f6986752fbef63ef944356927ecce00c8cb3c5 SHA-256: 32d12cf8c3a19a8c8d56b394f1e34caf13764b38a2a830e1cad2716566381060
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a large number of external links, likely to obscure the malicious destination. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content. The document body contains garbled text but includes the malicious URL and several benign-looking Shopify URLs.

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/pify?keyword=new+big+dragon+games
    • http://files.emmanuelyork.org/uploads/1/3/1/4/131438423/sizateter.pdf
    • https://cdn.shopify.com/s/files/1/0431/6997/2384/files/89948945958.pdf
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/the_apostolic_ministry_rick_joyner.pdf
    • https://cdn.shopify.com/s/files/1/0436/0162/5252/files/breast_cancer_awareness_month_flyer.pdf
    • https://cdn.shopify.com/s/files/1/0431/3323/9457/files/best_squarespace_templates_for_photographers_2019.pdf
    • https://cdn.shopify.com/s/files/1/0463/2513/7563/files/pennsylvania_state_tax_reporter_89-_106.pdf
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/5031500862.pdf
    • https://cdn.shopify.com/s/files/1/0431/5024/6048/files/ganowapuxegexusozigi.pdf
    • https://cdn.shopify.com/s/files/1/0433/1021/9432/files/vefuvalepegabamumake.pdf
    • https://cdn.shopify.com/s/files/1/0433/5727/4261/files/chakkaramavin_kombathu_song_free.pdf
    • https://cdn.shopify.com/s/files/1/0450/9846/7480/files/arduino_programming_codes_sinhala.pdf
    • https://cdn.shopify.com/s/files/1/0431/7852/4832/files/third_conditional_inversion_exercises.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_off0000b7bb.bin
cf6343a3e8150669c953c22cc4b0360c7bd5fc079b3c4cb3f493d37524230492		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB7BB 5316 bytes
font_01_sfnt_off0000c9c9.bin
2f3bbe20cf41427f66ce966cc938a731cf510236b2799beaeea2cd84aaee4a8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC9C9 15284 bytes

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