Malicious PDF — malware analysis report

Static analysis result for SHA-256 42f3a696bff2581d…

MALICIOUS

PDF

40.5 KB Created: 2020-08-30 09:53:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9215c06816f03b3f99ece550dea5e35e SHA-1: f5af797637a4df9bea64e4d2630101b77676782c SHA-256: 42f3a696bff2581de80be4ba7b28ccdbdf0fe2c7668bede5f2c3b69d984aad2a
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'The cucumber book' and the malicious URL. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for phishing or scamming purposes.

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=the+cucumber+book
    • https://static.usrfiles.com/ugd/b8c837_1199727eb6db4ef891fdadd5cfa11628.pdf
    • https://static.usrfiles.com/ugd/b8c837_d78812c1a46e49dd91e94993b984e042.pdf
    • https://static.usrfiles.com/ugd/b8c837_e6b032325d904897bf9cf1e87d7ac8a1.pdf
    • https://static.usrfiles.com/ugd/857e61_fb41ab95a7e7454989b9ccbf0ffc5fea.pdf
    • https://static.usrfiles.com/ugd/469aea_d744a0536ec145398900b2deb3bb5b4f.pdf
    • https://static.usrfiles.com/ugd/9421c8_1a161b25c14d4a8784e966fed105fff2.pdf
    • https://static.usrfiles.com/ugd/b8c837_56b12172fd954cb7be43318321bb1f0c.pdf
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/active_learning_template_system_disorder_pneumonia.pdf
    • https://cdn.shopify.com/s/files/1/0463/1196/4829/files/canciones_rancheras_para_guitarra.pdf
    • https://static.usrfiles.com/ugd/b8c837_24029676a1e841fd88e991b941f4c2c0.pdf
    • https://static.usrfiles.com/ugd/d7ba0f_8f93f9fafaca4b9eac1e8bfca71fcfed.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_off000062ce.bin
e39b674afd514c158a95507a790165c5ff40ad0d057972cb7d8e260ea08dce9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62CE 4772 bytes
font_01_sfnt_off000072e5.bin
7286108b0d5b249fc5fa31ed49ea6b6c1fc0bbdc58604dd6683a4eb740ac981f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72E5 10264 bytes

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