Malicious PDF — malware analysis report

Static analysis result for SHA-256 8524cd032afb8eda…

MALICIOUS

PDF

43.5 KB Created: 2020-08-22 00:14:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6450addbbbfe62b9c8845f0654ea1583 SHA-1: 45f0b9a10963ddfc287c1919e5064b47a3f9dc00 SHA-256: 8524cd032afb8eda4ebbf1cce685e12cbd7268a42ea06b14b73ef95495ad0af7
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=bottines+plateforme+talon+cuir', likely leads to a malicious site. The document also contains a large number of embedded URLs, many pointing to Shopify, suggesting a link farm or SEO poisoning attempt to distribute malicious content. The primary intent appears to be redirecting users to malicious infrastructure.

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=bottines+plateforme+talon+cuir
    • http://files.marksoftime.com/uploads/1/3/0/7/130775795/dunubo.pdf
    • https://cdn.shopify.com/s/files/1/0433/7310/1219/files/zapitojidafofemidaro.pdf
    • https://cdn.shopify.com/s/files/1/0432/2862/7107/files/bcd_code.pdf
    • https://cdn.shopify.com/s/files/1/0430/6750/6837/files/53167960365.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dipudakafadaned.pdf
    • https://cdn.shopify.com/s/files/1/0430/8025/3593/files/jafabofimukevetenoluguxi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0854/0324/files/77465945397.pdf
    • https://cdn.shopify.com/s/files/1/0437/8938/5885/files/17408172822.pdf
    • https://cdn.shopify.com/s/files/1/0434/7812/2649/files/37258041612.pdf
    • https://cdn.shopify.com/s/files/1/0438/7900/6376/files/dbmci_notes.pdf
    • https://cdn.shopify.com/s/files/1/0436/0008/5160/files/astronomy_today_eric_chaisson.pdf
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/jufosa.pdf
    • https://cdn.shopify.com/s/files/1/0438/3830/8512/files/aut_aut_rivista.pdf
    • https://cdn.shopify.com/s/files/1/0432/9757/0980/files/bumewom.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_off000069ab.bin
7dc9293d0a10b1c2c55100d828db9455301be158060eb19d120e712ae2b94c34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69AB 5212 bytes
font_01_sfnt_off00007b4b.bin
2992699bb32dc7cb2b24431e6dd8b3ac8d4f8cfec48c6b50f53590eea7fe4347		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B4B 11216 bytes

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