Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a711be187899ffc…

MALICIOUS

PDF

64.9 KB Created: 2020-08-29 07:44:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7aaac0b76620380214ca1f9132a0295d SHA-1: 3ed27dd3927aa18d42e0e85b0e8814c817f9dc13 SHA-256: 4a711be187899ffca40dd4ca10f03703fede6bd9e7b898572b06a2cbe928a571
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, with one critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=student+of+the+year+2012+full+movie', which is also flagged as a malicious redirector. The presence of numerous links to static.usrfiles.com suggests a link farm or SEO poisoning tactic to distribute the malicious content.

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=student+of+the+year+2012+full+movie
    • https://static.usrfiles.com/ugd/b8c837_3413ef6c17534686b8aa834b96393b91.pdf
    • https://static.usrfiles.com/ugd/b8c837_653fb4ac29404c1193e4fb58151fa8f5.pdf
    • https://static.usrfiles.com/ugd/b8c837_66887c2e72eb4b918273ab7b91b68826.pdf
    • https://static.usrfiles.com/ugd/b8c837_7155f7c6b781428d89e675d6822e7004.pdf
    • https://static.usrfiles.com/ugd/b8c837_6fbe8aa1ddb442968027325f89fc08b0.pdf
    • https://static.usrfiles.com/ugd/b8c837_476e506ee621455a999c44bbb08bdf8b.pdf
    • https://static.usrfiles.com/ugd/b8c837_1b998c5c6bf843ad91163d9da3dd33ce.pdf
    • https://static.usrfiles.com/ugd/b8c837_96909f32a42a41c2bac533be2f74c901.pdf
    • https://static.usrfiles.com/ugd/b8c837_757c9fc5c97f4560912a5e2ed577693b.pdf
    • https://static.usrfiles.com/ugd/b8c837_f6454569ec054182aca7b573c3613ff6.pdf
    • https://static.usrfiles.com/ugd/b8c837_f21abd05af4a4735988658ba001e0115.pdf
    • https://cdn.shopify.com/s/files/1/0440/0028/0726/files/87796759867.pdf
    • https://cdn.shopify.com/s/files/1/0430/9535/9642/files/astroneer_glowing_ball.pdf
    • https://cdn.shopify.com/s/files/1/0430/8267/8433/files/67042157566.pdf
    • https://cdn.shopify.com/s/files/1/0435/2642/2687/files/cantate_domino_canticum_novum_frisina.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009b58.bin
4ba2a219ac1cda115cf7a307bb26ac08e00d90fe0347b892a3ed78373767470f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B58 5440 bytes
font_01_sfnt_off0000adad.bin
6d471f3c24f874ee9dec7b0327ad29b716182d1ed60a425895115c0639b4c73e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADAD 10844 bytes
font_02_sfnt_off0000d2c0.bin
c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C0 16164 bytes
font_03_sfnt_off0000e7d5.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D5 4324 bytes

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