Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce5c956783a6e1ee…

MALICIOUS

PDF

35.6 KB Created: 2020-08-25 19:19:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0070d1add034d3531c230049131b75ef SHA-1: e366bc9d00e783820d8f9323724ddc1208ce4161 SHA-256: ce5c956783a6e1ee5449467fe07d759acb382e6b524a2270fa3f7cb1591c9d07
150 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Taylor made burner driver' and the malicious URL, suggesting a lure to a potentially harmful site. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=taylor+made+burner+driver
    • http://files.buildingbrilliantmindsonline.com/uploads/1/3/0/8/130874478/64f042.pdf
    • https://cdn.shopify.com/s/files/1/0434/5430/0312/files/womub.pdf
    • https://cdn.shopify.com/s/files/1/0439/1777/0904/files/kipogabafefegix.pdf
    • https://cdn.shopify.com/s/files/1/0430/5931/4841/files/73577752206.pdf
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/67066974682.pdf
    • https://cdn.shopify.com/s/files/1/0431/7678/8134/files/aadhaar_card_password_cracker.pdf
    • https://cdn.shopify.com/s/files/1/0435/4175/8101/files/fusutekegofevipetunax.pdf
    • https://cdn.shopify.com/s/files/1/0432/2423/6199/files/nosoforexabogozezigexo.pdf
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/94543664942.pdf
    • https://cdn.shopify.com/s/files/1/0428/7099/7151/files/49865221229.pdf
    • https://cdn.shopify.com/s/files/1/0437/2499/6758/files/gogitenuzobexo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7383/1072/files/lp_retinoblastoma.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004287.bin
f16ae69cacdcaffd6000e456b99f8a31b6f83ead2349d50a7f86260aff9bde01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4287 4848 bytes
font_01_sfnt_off000052de.bin
bf1c57b22f9770f580f760cb50c8e602037c052cd7ee960ff6c64ea6d33d6bca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52DE 9544 bytes
font_02_sfnt_off000073a4.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73A4 4324 bytes

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