Malicious PDF — malware analysis report

Static analysis result for SHA-256 be68373ade3265aa…

MALICIOUS

PDF

41.3 KB Created: 2020-08-29 14:50:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4028b11f0d2c8cfea920cd771c847802 SHA-1: 7de0d456697aed149f08631e4d87b1b66599ff7f SHA-256: be68373ade3265aa0933d1cf3b155774a11685006f7e6cc6f5f9f830501ec826
120 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=download+raciocinio+logico+enrique+r'. This URL is presented to the user as a download link, indicating a social engineering lure. The document also contains a large number of embedded URLs, many of which point to benign Shopify files, suggesting a link farm or SEO poisoning tactic to increase visibility of the malicious link. No scripts were extracted from this sample.

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=download+raciocinio+logico+enrique+r
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/65507188218.pdf
    • https://cdn.shopify.com/s/files/1/0433/2145/8853/files/40743390876.pdf
    • https://cdn.shopify.com/s/files/1/0431/4244/7265/files/lunufivazomab.pdf
    • https://cdn.shopify.com/s/files/1/0433/8827/2807/files/demokrasi_amerika_serikat.pdf
    • https://cdn.shopify.com/s/files/1/0433/2548/9305/files/software_architecture_design_principles.pdf
    • https://cdn.shopify.com/s/files/1/0434/2402/2677/files/zekorerute.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32296476761.pdf
    • https://cdn.shopify.com/s/files/1/0433/4488/7966/files/kapitan_sino_bob_ong_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/6829/3287/files/18681506618.pdf
    • https://static.usrfiles.com/ugd/b8c837_98999d05c9434b8fb7a634a0e4bb6b43.pdf
    • https://static.usrfiles.com/ugd/b8c837_dfe136bcdc9e448dbf4c3a112f7ebd87.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_off00006453.bin
2d1717c84b35824b2fbe1a29612e25f55d7eac45db3248b8dfc402b55d449308		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6453 5148 bytes
font_01_sfnt_off000075e8.bin
d61ffd4d84658c11e51127a75019374689de97ac7cd8748463810fb6f1e41070		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75E8 10160 bytes

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