Malicious PDF — malware analysis report

Static analysis result for SHA-256 504abb712d5f28a8…

MALICIOUS

PDF

61.0 KB Created: 2020-08-24 11:33:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77dae2733f660108b26459a8fa7f5437 SHA-1: dfa453e951ccfae0b2d7ddcb94888cb1d9338dad SHA-256: 504abb712d5f28a8d3ae0aa9e31c2133b0109f5293e8cd378f5dc430047694d9
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, traff.com, which is disguised with keywords related to JFK's inaugural address. This suggests a phishing or social engineering attempt to direct users to malicious content. The PDF also contains a large number of links to external PDFs, many hosted on Shopify, indicating a link farm or SEO poisoning tactic to improve search engine visibility for 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.com/pify?keyword=inaugural+address+jfk+answers
    • http://files.southernwildproducts.com/uploads/1/3/0/7/130775747/deranojiveg-ridoz.pdf
    • https://cdn.shopify.com/s/files/1/0437/7473/8586/files/11081348349.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/metal_cutting_theory_and_practice_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0441/4488/5912/files/tixedotuvoturem.pdf
    • https://cdn.shopify.com/s/files/1/0432/1479/9012/files/bimozudaxeledoxeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/0279/7986/files/rudadapunipaje.pdf
    • https://cdn.shopify.com/s/files/1/0451/2504/2329/files/oh_baby_girl_song_starmusiq.pdf
    • https://cdn.shopify.com/s/files/1/0440/6145/8582/files/95373314730.pdf
    • https://cdn.shopify.com/s/files/1/0432/4311/0555/files/33101355351.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_off0000b1a6.bin
95a5bf496bcca646f3b8aff28ae88430652d2a6e4c3333831de43c95fdddbf74		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB1A6 5244 bytes
font_01_sfnt_off0000c3a5.bin
70880a7e6fbd1428c05a7128d92b68276257907b5379dcb8518072d2dda90501		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC3A5 10388 bytes

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