Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb01fe3527b7547a…

MALICIOUS

PDF

45.8 KB Created: 2020-08-31 10:42:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2f0d7b5340fffb452988d886cced3a8 SHA-1: fffb0c3121de13447d9c2b1ea456fc75af0a6348 SHA-256: bb01fe3527b7547a345b620ddad7440295571c4b506ea0bb7db40e540cb501d3
150 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one specifically identified as a malicious redirector. The document body, though partially corrupted, contains text referencing a "Jamie eason phase 1 meal plan pdf" and the malicious URL, indicating a lure to a potentially harmful site. The presence of numerous external PDF links further supports a link farm or redirection strategy.

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.ru/wix?keyword=jamie+eason+phase+1+meal+plan+pdf
    • https://static.usrfiles.com/ugd/b13fd1_19c914f8b44b4143ba73ceb15ee7260f.pdf
    • https://static.usrfiles.com/ugd/12daa7_3edaf28a4b45430dbc96c56e472db949.pdf
    • https://static.usrfiles.com/ugd/5fd5c1_c5418f665bb34130959bc183d2af760d.pdf
    • https://static.usrfiles.com/ugd/60933b_885adb39a1a942a2bcf8d14e7ea3db94.pdf
    • https://static.usrfiles.com/ugd/affaa6_7b6a10d6551b4b89a7510db0b81559a0.pdf
    • https://static.usrfiles.com/ugd/f8de3e_51ee329758024a2cb7f3ca28c4d7b9dd.pdf
    • https://static.usrfiles.com/ugd/9c43ec_ab4f9fe1ed9c4df9a09435ae9363ed3c.pdf
    • https://static.usrfiles.com/ugd/eaf48f_ebbf10ce69584b7b98cab548997a00f1.pdf
    • https://static.usrfiles.com/ugd/f103bb_1c348af3c5164e1ab6853249d0f4e595.pdf
    • https://cdn.shopify.com/s/files/1/0437/9328/5277/files/46859421192.pdf
    • https://cdn.shopify.com/s/files/1/0429/4855/9004/files/koxax.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_off00007568.bin
727304e1a0fd7466399b9d1135bd775fb124e7a9feb74f9cab1a9ad95fc209a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7568 5224 bytes
font_01_sfnt_off0000870b.bin
7183fad088ab5a76fd2d821d097a2b60af571db8a27b4d3822d39d2b30642c5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x870B 10588 bytes

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