Malicious PDF — malware analysis report

Static analysis result for SHA-256 d32774a84dfb73df…

MALICIOUS

PDF

113.2 KB Created: 2020-07-21 00:28:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b2351501aa304dc990d9e31b06ea0ab SHA-1: 5e61eb5a77402abd193d12b28458cebc3c7d4db0 SHA-256: d32774a84dfb73df560e8dba1ad4b154ed350383bb954fc9fef9fde7b91bd116
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a lure related to a 'Cisco bgp configuration guide' and includes a call-to-action phrase, indicating a phishing or social engineering attempt. It links to a known malicious redirector at 'ttraff.cc', which is likely used to obscure the final destination or deliver a payload. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm used for SEO poisoning or to distribute malicious content.

Heuristics 5

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=cisco%20bgp%20configuration%20guide%20pdf
    • http://files.reading2reading.com/uploads/1/3/0/9/130969555/49253ecafb.pdf
    • http://files.paramountrec.com/uploads/1/3/0/7/130775827/wanuvawofi.pdf
    • http://files.kellymichellebaker.com/uploads/1/3/0/9/130969831/6229142.pdf
    • http://files.futurereadyacademy.org/uploads/1/3/2/6/132682685/vuzaxizariforub-jegudoti-bemad-fozalin.pdf
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/69762455362.pdf
    • https://cdn.shopify.com/s/files/1/0436/8665/8213/files/wasisoxisifen.pdf
    • https://cdn.shopify.com/s/files/1/0434/3794/9090/files/61462923232.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7903/files/ravimugomajo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81397135942.pdf
    • https://mosamexi.files.wordpress.com/2020/06/nutijugep.pdf
    • https://riduvetixaxu.files.wordpress.com/2020/06/8653906527.pdf
    • https://viveriba.files.wordpress.com/2020/06/99410176463.pdf
    • https://cdn.shopify.com/s/files/1/0433/1867/3566/files/20286108446.pdf
    • https://cdn.shopify.com/s/files/1/0431/6086/2882/files/37184436112.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/wapikakot.pdf
    • https://cdn.shopify.com/s/files/1/0434/4673/0904/files/51067483790.pdf
    • https://cdn.shopify.com/s/files/1/0433/4590/3781/files/12282557450.pdf
    • https://cdn.shopify.com/s/files/1/0430/8982/1847/files/rizibajemomulanuzo.pdf
    • https://cdn.shopify.com/s/files/1/0429/3469/8147/files/3579310487.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_off000174f7.bin
c5c35c54bf78f793c7a1d60f2f336e1add0c2367a8084428027d616026e6e0fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x174F7 5336 bytes
font_01_sfnt_off00018721.bin
ea3541f5ca4266604e548401f5422e9194b8ecd00246f03bc41f084dab2f1642		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18721 15328 bytes

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