Malicious PDF — malware analysis report

Static analysis result for SHA-256 565b136a300033ad…

MALICIOUS

PDF

136.8 KB Created: 2020-08-01 13:26:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c720f53dc307524fdd948358a5bc85d SHA-1: 20e3214d045f0a9d37710bee41d0fe687d6ad287 SHA-256: 565b136a300033ad4f203f18532ce6d39514cb34c281b2f7de0ddbf299802a30
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body text, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation or to host further 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=enter+the+gungeon+potion+of+gun+friendship
    • http://files.ezek.com/uploads/1/3/0/7/130738871/ranipog.pdf
    • http://files.joyadele.com/uploads/1/3/2/7/132710784/6401176.pdf
    • http://files.laurashop.ca/uploads/1/3/0/7/130775308/pazikakemejojokogu.pdf
    • http://files.hofreunion.com/uploads/1/3/1/6/131636758/3220674.pdf
    • https://cdn.shopify.com/s/files/1/0430/1481/5901/files/8680013280.pdf
    • https://cdn.shopify.com/s/files/1/0437/6743/1320/files/jarosexuzike.pdf
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/gifamukebidifib.pdf
    • https://cdn.shopify.com/s/files/1/0435/6620/3029/files/zipijiboxelewibo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/jexupujaretik.pdf
    • https://cdn.shopify.com/s/files/1/0437/8689/5512/files/kulumosazorunorodiwef.pdf
    • https://cdn.shopify.com/s/files/1/0430/6881/7569/files/mikovimimod.pdf
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/3868066831.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/85388189912.pdf
    • https://cdn.shopify.com/s/files/1/0430/1363/6259/files/naxopikovaverumiz.pdf
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/lasiraranemipurojapixen.pdf
    • https://cdn.shopify.com/s/files/1/0427/5588/3175/files/90994932643.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_off0001df7c.bin
41c6c461668dc56366a94135e59dad9239c7f2025192f3319166f04610e921ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1DF7C 5016 bytes
font_01_sfnt_off0001f095.bin
ecb15acdd07bafd09c055c9334fadd773a02f9c49dcdeaf99d47bd54ac3c1df4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1F095 10660 bytes

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