Malicious PDF — malware analysis report

Static analysis result for SHA-256 50305ed2367ee836…

MALICIOUS

PDF

51.4 KB Created: 2020-08-31 21:58:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0283433525bb0a69f40cf80d5995196d SHA-1: ec7e66cfd238044d2c05d5872012ac212ba9ede7 SHA-256: 50305ed2367ee836f2350ae2cfc2a89e080c8f7bb03437fa572203f22c282710
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy to obscure the malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/wix?keyword=asch+conformity+experiment+hypothesis
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84407481133.pdf
    • https://cdn.shopify.com/s/files/1/0428/4953/4111/files/clinician_administered_ptsd_scale_dsm_5.pdf
    • https://cdn.shopify.com/s/files/1/0436/6408/1046/files/cquence_performance_brakes.pdf
    • https://static.usrfiles.com/ugd/dd4472_4d177dec33744429944b6a12a022ed86.pdf
    • https://static.usrfiles.com/ugd/9b7d8a_07501320990040549d9cf7d2617c136f.pdf
    • https://static.usrfiles.com/ugd/b8c837_1351572647e1432a8131b2b08e7c330b.pdf
    • https://cdn.shopify.com/s/files/1/0440/1568/1701/files/barinivusokuninanoxuku.pdf
    • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/matura_rozszerzona_angielski_gramatyka.pdf
    • https://cdn.shopify.com/s/files/1/0435/2973/2248/files/sojinewijotisen.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83142526711.pdf
    • https://cdn.shopify.com/s/files/1/0428/1214/5823/files/26361901594.pdf
    • https://static.usrfiles.com/ugd/f459ea_a68b39d055d24291a3c694b65973404d.pdf
    • https://static.usrfiles.com/ugd/0a0016_3a461a5179e24e9a97f589a8984f1fd0.pdf
    • https://static.usrfiles.com/ugd/4725f1_f8ba6dc6c00343378e87b7882e4da746.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_off00008c4e.bin
0b518175ce6f930cfd1a3a9557484515d097c59a7a36cfc0c1d0768faf842ddb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C4E 5172 bytes
font_01_sfnt_off00009dd1.bin
aeeff134ef391852fc864b3c7745dcc2d14f8f848d0e8666ca12cd5da8bfca5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DD1 10336 bytes

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