Malicious PDF — malware analysis report

Static analysis result for SHA-256 38e6d956df1e7f3c…

MALICIOUS

PDF

39.8 KB Created: 2020-08-11 01:22:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4cb471be9ba56a4c0891714acea43d70 SHA-1: 6f547a594cafae7b0f2c9b71911278dc1f8e7c85 SHA-256: 38e6d956df1e7f3cdca2778f2fb875113df9c5ab7fc376cd33ab42ba7c9a1d03
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=ussr+anthem+sheet+music+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, appears to contain references to sheet music and the redirector URL, suggesting a lure to trick users into visiting malicious sites.

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/pify?keyword=ussr+anthem+sheet+music+pdf
    • http://files.mylocalcbdstores.com/uploads/1/3/1/4/131483662/najuturulezed-muror-xobotediwaw.pdf
    • http://files.showyouwhatsreal.com/uploads/1/3/0/7/130738875/6539656.pdf
    • http://files.shawnhaymakeupartist.com/uploads/1/3/1/0/131070792/6478793.pdf
    • https://cdn.shopify.com/s/files/1/0432/1089/9624/files/venada.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdf
    • https://cdn.shopify.com/s/files/1/0435/8999/2616/files/90261772016.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/21590924229.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/10001025343.pdf
    • https://cdn.shopify.com/s/files/1/0430/5240/0789/files/libros_esther_hicks.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/89649092026.pdf
    • https://cdn.shopify.com/s/files/1/0433/0710/6462/files/67745281824.pdf
    • https://cdn.shopify.com/s/files/1/0429/6831/8105/files/ccie_security_notes.pdf
    • https://cdn.shopify.com/s/files/1/0430/4902/5690/files/zoxinumitug.pdf
    • https://cdn.shopify.com/s/files/1/0428/7329/0908/files/sisotemeri.pdf
    • https://cdn.shopify.com/s/files/1/0430/4060/4314/files/japeterunasubara.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_off00005dc2.bin
3213f65336d4318398a44499f07cd7cb2e7dcf4666fdaf3ad16792e07183eb4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC2 5352 bytes
font_01_sfnt_off00006fc7.bin
aa35441ca3a47129d4ab67f7c274eb99ac995078a1087a19f372a500584584e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC7 10032 bytes

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