Malicious PDF — malware analysis report

Static analysis result for SHA-256 49ce83228da8d30a…

MALICIOUS

PDF

61.9 KB Created: 2020-08-27 13:52:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e05452911f4bf1a0aa2e11d7349f8a7 SHA-1: 1203be44de00821560b8b04989a7c34f1fcdf670 SHA-256: 49ce83228da8d30ac04c78a6bb85f44323a75e2796b0075643d04fa5412a8cac
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, indicating a phishing or redirection attempt. The document body text, though garbled, includes the phrase 'Eureka quest guide' and the malicious URL, suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, points to a link farm strategy to obscure the final malicious destination.

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=eureka+quest+guide
    • http://zazezida.toolbeltoflearning.com/uploads/1/3/0/7/130776031/megurewuzelozabuli.pdf
    • http://jusijup.giuliosterbinisounddesign.com/uploads/1/3/1/1/131163635/b6464a29752.pdf
    • http://wopufe.oklahoma-chapter7.com/uploads/1/3/0/7/130776757/4152521.pdf
    • https://cdn.shopify.com/s/files/1/0431/3917/0466/files/jezegidoxome.pdf
    • https://cdn.shopify.com/s/files/1/0434/1052/2268/files/giganejitagomikig.pdf
    • https://cdn.shopify.com/s/files/1/0430/7940/1632/files/313104749.pdf
    • http://sigegup.artpacesa.square.site/uploads/1/3/2/3/132303168/c1648c2ad12.pdf
    • https://cdn.shopify.com/s/files/1/0431/5951/9394/files/nemelagovoxon.pdf
    • https://cdn.shopify.com/s/files/1/0438/4433/7824/files/40709733542.pdf
    • https://cdn.shopify.com/s/files/1/0429/6091/2537/files/nepemifarizel.pdf
    • https://cdn.shopify.com/s/files/1/0432/4166/8770/files/mulakose.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/peboginesewuxexadamo.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_off0000a8c4.bin
2e8dc1acf5c2645aaad7e06c7a56176a8d0c417bf70d54fd81e5203b0e940755		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA8C4 4776 bytes
font_01_sfnt_off0000b90d.bin
02f42a5f1ac30a0636e0cbcd45b233707958bcaaa9d96fb4157143a4eac9c3ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB90D 10548 bytes
font_02_sfnt_off0000dcea.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCEA 4324 bytes

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