Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa0c78049a7c5434…

MALICIOUS

PDF

34.2 KB Created: 2020-08-30 11:16:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc36f2cff2e82d6deb81cabd17d97766 SHA-1: 2868519acc2b93c5333ae67219b86b914d2a0bd1 SHA-256: fa0c78049a7c54340c54d10dfc68f88ebb30294731a6bca7f1dd79dba0b81616
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure for a free download of an architectural drawing manual. This indicates a social engineering tactic to entice users to click on the malicious link, likely leading to further compromise.

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=manual+de+dibujo+arquitectonico+pdf+descargar+gratis
    • https://static.usrfiles.com/ugd/b8c837_423f1dee98b64e0db23e64b60ffe3dff.pdf
    • https://static.usrfiles.com/ugd/b8c837_1de383fdc8ff445f9343ab234c04cb5e.pdf
    • https://static.usrfiles.com/ugd/b8c837_64ff54eb1c6c43e0a006ccc99c6f5e33.pdf
    • https://static.usrfiles.com/ugd/97493d_247480588c264bd38878e12395f5ecb9.pdf
    • https://static.usrfiles.com/ugd/8de238_515e161b314a46ba8097dec912b487f4.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_a300a56c77d044ad92409959a1b6a130.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73768917897.pdf
    • https://cdn.shopify.com/s/files/1/0434/8870/6717/files/19607164172.pdf
    • https://cdn.shopify.com/s/files/1/0431/8799/4792/files/50085042103.pdf
    • https://static.usrfiles.com/ugd/b8c837_fae9ca00ce134c25baf418245a62528c.pdf
    • https://static.usrfiles.com/ugd/930050_a999739216d84051bd6be857d5f4ccfc.pdf
    • https://static.usrfiles.com/ugd/b8c837_f814e15be08948cba6ef220efbb1addc.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_off000047ef.bin
134187cdd584451137efa67ae57f8f6e84ed5276afe23b8ccfd4f2c7a43b0af5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47EF 5672 bytes
font_01_sfnt_off00005b3a.bin
a4ac881f470c508bc16df66e7efdfd7528faf4ae602c2de18c4f820573c541b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B3A 10008 bytes

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