Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e11776297ef5b4c…

MALICIOUS

PDF

49.1 KB Created: 2020-09-07 17:14:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 639aec4427cf2723903e264c22b3db22 SHA-1: 0f47d898839fd4cd45c2bbcc915f75391d9f9341 SHA-256: 8e11776297ef5b4c87a5d84f6c6fe0cf9289e0d89740dc42f09ceccce241cddb
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.club/wix?keyword=mitotic+index+lab+report'. The document body, though heavily obfuscated, contains this URL and a large number of other PDF links, suggesting a link farm or redirection strategy. The primary attack pattern involves luring the user to a malicious site via a deceptive link within the document.

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.club/wix?keyword=mitotic+index+lab+report
    • https://cdn.shopify.com/s/files/1/0450/2552/5910/files/50834056578.pdf
    • https://cdn.shopify.com/s/files/1/0432/6414/7609/files/roserexev.pdf
    • https://cdn.shopify.com/s/files/1/0428/9714/6019/files/bologna_self_guided_food_tour.pdf
    • https://static.usrfiles.com/ugd/c20ea7_562502d64c344df0932d4c553a276084.pdf
    • https://static.usrfiles.com/ugd/d6b5da_46c37279f5114b0c875c4959c4aadb76.pdf
    • https://static.usrfiles.com/ugd/913720_08aabd08117b41df8bcc06c844d1d09f.pdf
    • https://cdn.shopify.com/s/files/1/0457/7918/9916/files/bujap.pdf
    • https://cdn.shopify.com/s/files/1/0428/9980/0217/files/edz_resource_detector_ghost.pdf
    • https://cdn.shopify.com/s/files/1/0435/3658/0759/files/alape_bucket_sink_stahlform_412.pdf
    • https://static.usrfiles.com/ugd/e4ff69_88d93a2cbb8e4452bc789e18419d5807.pdf
    • https://static.usrfiles.com/ugd/b8c837_309a309bfe6143808f7624433e6b85f0.pdf
    • https://static.usrfiles.com/ugd/74e905_a498ea7dd3274432aeee408daa4cc81a.pdf
    • https://static.usrfiles.com/ugd/b8c837_666dccc875de4a9b890f7e5c2c0f4a59.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_off000079de.bin
230aac1733f02089f18894a32244141ebf0fe37134f0b92f9ab3252711627f6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79DE 5104 bytes
font_01_sfnt_off00008b51.bin
8da3ede3e2da511d58b5433cac0209a02fbd6d35f30a910a01ba07af7624ffd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B51 14288 bytes

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