Malicious PDF — malware analysis report

Static analysis result for SHA-256 e79e117a4b5c98c6…

MALICIOUS

PDF

43.7 KB Created: 2020-08-28 21:42:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58cffc1c369bdc86404c36eb5083d82d SHA-1: d76c4802cea1f70ad35c3cb0424d1873ce873f15 SHA-256: e79e117a4b5c98c6454ed6199a1ae03e251506a0ad0c56bd518d985037387e13
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/wix?keyword=amazon+fire+recast+review'. This indicates a phishing or scam attempt where the user is directed to a potentially harmful site. The document body, though heavily obfuscated, contains references to this URL and other Shopify links, suggesting a link farm or content-loading mechanism. The presence of numerous embedded links, many pointing to Shopify, further supports the idea of a content-driven lure.

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/wix?keyword=amazon+fire+recast+review
    • https://cdn.shopify.com/s/files/1/0435/5093/3156/files/sklearn_binary_classification_report.pdf
    • https://cdn.shopify.com/s/files/1/0433/8463/5544/files/powomaliguge.pdf
    • https://cdn.shopify.com/s/files/1/0440/4166/6710/files/gokubirumazozefem.pdf
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/22282848795.pdf
    • https://static.usrfiles.com/ugd/b8c837_79a4e57205f04ba58e0393a2ba477be0.pdf
    • https://static.usrfiles.com/ugd/b8c837_05f9fd05704643bcb590d79a516f4ca2.pdf
    • https://static.usrfiles.com/ugd/b8c837_21b9ebe27ef7402f87e0d0f199e9f391.pdf
    • https://static.usrfiles.com/ugd/b8c837_0d1c67659093413da620fc3c1c1b5d42.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7997453156.pdf
    • https://cdn.shopify.com/s/files/1/0429/6887/5157/files/91796960748.pdf
    • https://cdn.shopify.com/s/files/1/0437/1054/6070/files/mutagoti.pdf
    • https://cdn.shopify.com/s/files/1/0428/9714/6019/files/repofotu.pdf
    • https://static.usrfiles.com/ugd/b8c837_01f2fd2444b2434586ba0b0969919ead.pdf
    • https://static.usrfiles.com/ugd/b8c837_de3c9db0f874497da0122ed0da29be62.pdf
    • https://static.usrfiles.com/ugd/b8c837_62a5d968ecc846639d3de5cc1a6faf2a.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_off00006cef.bin
1905fd34576ff28aa3df308f0d3a35e9724bd4b7e97341ca1a3499d502b51c72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CEF 5184 bytes
font_01_sfnt_off00007e91.bin
13e0f0798f415aaff3da084e1ff55f71d94a50bf897db3889eb012b81a904e40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E91 10464 bytes

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