Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bc0d5ea4c786a86…

MALICIOUS

PDF

40.0 KB Created: 2020-09-01 12:13:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40f0a5df225f639bbd08aeb7f14dba02 SHA-1: 773a336e4b4ef19a28a576cfb59ac700ddd28da9 SHA-256: 4bc0d5ea4c786a86c44e5c1867a00b63c32413a8177b6fcefee2e8a71584b153
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=evaneos+guide+costa+rica'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous links to benign Shopify-hosted PDFs. The document body contains obfuscated text and the target URL, suggesting a lure to a malicious site under the guise of providing a guide. No scripts were extracted, limiting further analysis of payload delivery.

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=evaneos+guide+costa+rica
    • https://cdn.shopify.com/s/files/1/0440/8619/8424/files/samsung_un75mu6300_review.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/wiwozitepoloxaninag.pdf
    • https://cdn.shopify.com/s/files/1/0433/0985/8969/files/60940201267.pdf
    • https://cdn.shopify.com/s/files/1/0445/9918/1476/files/french_vocabulary_list.pdf
    • https://cdn.shopify.com/s/files/1/0434/5298/9605/files/5549631890.pdf
    • https://cdn.shopify.com/s/files/1/0433/4642/8062/files/49768807693.pdf
    • https://cdn.shopify.com/s/files/1/0427/8275/2935/files/puwanobabemoto.pdf
    • https://cdn.shopify.com/s/files/1/0437/9013/9549/files/best_anime_wallpaper_hd.pdf
    • https://cdn.shopify.com/s/files/1/0438/4771/2928/files/21041514879.pdf
    • https://static.usrfiles.com/ugd/43d598_58204c9494de44cdb2bfbf1a27a2f7a9.pdf
    • https://static.usrfiles.com/ugd/4cf28d_8a2ee1f018c64c85bd7684c585d1aa5c.pdf
    • https://static.usrfiles.com/ugd/fedf23_7ae79958c1b44572acfcdd00247a92f9.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_off00005e66.bin
2b89f049caeead7688cde47166d23bf4f5abcebc4a1e7866c61da5f17a9d2e6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E66 5092 bytes
font_01_sfnt_off00006fcd.bin
ab6245b539277817288f36839303295589a41cf3ca71249074cb21d60a6af4b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FCD 10568 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.