Malicious PDF — malware analysis report

Static analysis result for SHA-256 335c2aba2d366f7a…

MALICIOUS

PDF

50.3 KB Created: 2020-07-30 15:56:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c0e00098513589c152a865774a4d3ac SHA-1: 005b3cbc25fbd9eaee036b3954e660007d4b465c SHA-256: 335c2aba2d366f7a3c68f6698e21f81ce35ac5455afb6e57541f999e098d8866
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with the primary heuristic identifying a malicious redirector. The document body is heavily obfuscated, but the presence of numerous external links, including one pointing to a known malicious redirector, strongly suggests a phishing or redirection attack. The file's purpose is to drive traffic 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=cantico+dei+cantici+pdf
    • http://files.weddingcakesbysharon.com/uploads/1/3/1/3/131381464/rufidazow.pdf
    • http://files.rsojournal.com/uploads/1/3/1/8/131872096/5873310.pdf
    • http://files.lakehamiltonbaptistchurch.org/uploads/1/3/0/9/130969967/2639348.pdf
    • http://files.drrichardsonsnfp.org/uploads/1/3/1/3/131380469/8283429.pdf
    • http://files.weddingcakesbysharon.com/uploads/1/3/1/3/13
    • https://cdn.shopify.com/s/files/1/0436/9648/8613/files/58526170469.pdf
    • https://cdn.shopify.com/s/files/1/0437/9194/1781/files/topopuxofotoxafujopeguju.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/32668972986.pdf
    • https://cdn.shopify.com/s/files/1/0431/1695/3751/files/tilipisajuxupi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9716/9824/files/pikasorogida.pdf
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/kojevijejujalu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4505/9749/files/xidiruvex.pdf
    • https://cdn.shopify.com/s/files/1/0433/9597/3276/files/doremapuledawakupu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31082235151.pdf
    • https://cdn.shopify.com/s/files/1/0433/1687/1333/files/madegaboguzugebo.pdf
    • https://cdn.shopify.com/s/files/1/0429/0763/1779/files/xakizududovabusoju.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_off000081e5.bin
64d07a82dba3d108d1ee402d7366d34c1db288544a3def469a0439dcbe1d08db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81E5 4652 bytes
font_01_sfnt_off000091c8.bin
6a8cb36aaf772d21f233ebd8b5f79e0eb8342710bfd4f5dc75b5773c44bd6e8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91C8 13112 bytes

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