Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2088f6e34547325…

MALICIOUS

PDF

70.4 KB Created: 2020-08-31 04:00:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e83237dfd2c2df7d310be5d4ee42cd7 SHA-1: 9b021bf2e0d5d64005ed966f8882814d264f3427 SHA-256: c2088f6e34547325cbd6b9c870cc7e3e321f61a8ecaaf7bd52b70bc1d7422db9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=himno+a+secundarias+generales+de+puebla'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with 'https://static.usrfiles.com/ugd/b8c837_c0baa625869d476482b5754e6ae6e8d8.pdf' being one of them. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the primary goal is to redirect the user 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/wix?keyword=himno+a+secundarias+generales+de+puebla
    • https://static.usrfiles.com/ugd/b8c837_c0baa625869d476482b5754e6ae6e8d8.pdf
    • https://static.usrfiles.com/ugd/edb4a7_100c9368e81447e281cb381ed3d7a1dd.pdf
    • https://static.usrfiles.com/ugd/5fd5c1_47a8c34c254b42149112dda61f3b93fb.pdf
    • https://static.usrfiles.com/ugd/e4bc37_6fb293690b814bbabbde205004d9e77a.pdf
    • https://static.usrfiles.com/ugd/b8c837_e261fc6a85604b87890c33fb52107b63.pdf
    • https://cdn.shopify.com/s/files/1/0431/3330/4981/files/lumbar_facet_joint_injection.pdf
    • https://cdn.shopify.com/s/files/1/0440/0028/0726/files/likagofabo.pdf
    • https://cdn.shopify.com/s/files/1/0437/3417/1813/files/62643969624.pdf
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/nudobiset.pdf
    • https://static.usrfiles.com/ugd/b8c837_3e24c6fa2c754dc99b2900516f28e6c8.pdf
    • https://static.usrfiles.com/ugd/b5472a_c30d2586f26f4682b2cbe475ca6bd950.pdf
    • https://static.usrfiles.com/ugd/3aee12_e857cbe11d27460dacb0dd6bfb650b2b.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/
    • https://static.usrfiles.com/ugd/3aee12_e857cbe11

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c874.bin
565e99d64711d6a9d59e14760bea8d85aa0dcd6973454cc7c2ff7caa52474b5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC874 1604 bytes
font_01_sfnt_off0000d096.bin
e3a2204c5f29876aa9025fc9e155f6aa8db45cfee63681e045f53f5a08f98ac5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD096 5496 bytes
font_02_sfnt_off0000e314.bin
03633c9325b737b1f485de7aabf098d57480aec2fd65d49d5233ffb22cb9a2ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE314 12512 bytes

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