Malicious PDF — malware analysis report

Static analysis result for SHA-256 38dac589b04fa52d…

MALICIOUS

PDF

50.0 KB Created: 2020-08-15 04:43:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: faeea14616db39b0ec44637024cff283 SHA-1: eb0c55720aa8acb46279a1c875fe833bcd23beb2 SHA-256: 38dac589b04fa52d51a94dc0aa41eb07bb1fb05ee19586706015b8e61f7743fd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1566 Phishing

The PDF contains a social engineering lure, instructing the user to install a browser extension or update to view content. It also contains a link to a known malicious redirector, ttraff.com, which is likely used to host or redirect to further malicious content. The document body, though heavily obfuscated, contains the URL that is also flagged as a malicious redirector.

Heuristics 4

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/pify?keyword=chrome+vpn+extension+free
    • http://files.halobonline.com/uploads/1/3/1/3/131380756/2db4e9e.pdf
    • http://files.mysuzannahsmith.com/uploads/1/3/1/1/131164132/tejibalavezuzukalif.pdf
    • http://files.riseandslimeco.com/uploads/1/3/1/6/131606652/8787510.pdf
    • https://cdn.shopify.com/s/files/1/0431/8589/7627/files/58440469742.pdf
    • https://cdn.shopify.com/s/files/1/0436/9452/2518/files/zeluwasajakidugazuta.pdf
    • https://cdn.shopify.com/s/files/1/0433/9616/9886/files/76961903660.pdf
    • https://cdn.shopify.com/s/files/1/0431/6043/6896/files/ulcera_peptica.pdf
    • https://cdn.shopify.com/s/files/1/0437/0749/8647/files/bavejenebo.pdf
    • https://cdn.shopify.com/s/files/1/0435/5158/8507/files/pumik.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nimapudusakodinufuzexive.pdf
    • https://cdn.shopify.com/s/files/1/0431/2698/0770/files/oceanofpdf_site_down.pdf
    • https://cdn.shopify.com/s/files/1/0437/8555/2034/files/soromevimalomofelix.pdf
    • https://cdn.shopify.com/s/files/1/0441/3833/2312/files/92901547371.pdf
    • https://cdn.shopify.com/s/files/1/0435/5679/8615/files/vufelazaropoxojawelez.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/
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000877e.bin
3883b791f7baceb6f12f609261dfd27854d259821bd303de4f6be4d146724523		 pdf-font-stream PDF embedded font (sfnt) at offset 0x877E 4932 bytes
font_01_sfnt_off0000982d.bin
4268a99d98aa0ff2ed786ab71d3abd6c9fbb7d259faecc64231cc5d732b2e81e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x982D 10212 bytes

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