Malicious PDF — malware analysis report

Static analysis result for SHA-256 5072a71c0466d0bd…

MALICIOUS

PDF

46.9 KB Created: 2020-08-19 05:39:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f3daf2f3c9cffe962be521269d1de94 SHA-1: eb2652787b11c6476f2283d0008fc361bc806a96 SHA-256: 5072a71c0466d0bd8b93098d5f9f4459e038c029a5aae58e2f239ffc90486725
120 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'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same URL found in the redirector heuristic, suggesting it's the primary lure. The file's purpose appears to be directing users to malicious infrastructure under the guise of providing a worksheet.

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/pify?keyword=null+and+alternative+hypothesis+worksheet+with+answers
    • http://files.sewsweetdesignsfordolls.com/uploads/1/3/0/8/130815664/xotusu.pdf
    • https://cdn.shopify.com/s/files/1/0435/0499/2421/files/27164429602.pdf
    • https://cdn.shopify.com/s/files/1/0438/3758/7606/files/9065175342.pdf
    • https://cdn.shopify.com/s/files/1/0452/4287/6061/files/62108345948.pdf
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/67486168178.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2122/files/32369605858.pdf
    • https://cdn.shopify.com/s/files/1/0434/0734/3772/files/levubebonawujire.pdf
    • https://cdn.shopify.com/s/files/1/0434/8982/0836/files/litag.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pujar.pdf
    • https://cdn.shopify.com/s/files/1/0429/0369/9615/files/95128738557.pdf
    • https://cdn.shopify.com/s/files/1/0435/3094/4671/files/22982645856.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/1/0435/0499/2421/file

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a57.bin
98ae439440d4e69ed57505fafa66743b5848f60badf373327f2d11bf89d6d460		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A57 5216 bytes
font_01_sfnt_off00007c1c.bin
798044a0cc5e7661fa80c75176389cfc41d1b91b5bdbe032bca5472b89ab1c02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C1C 10568 bytes
font_02_sfnt_off00009fee.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9FEE 4324 bytes

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