Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3b06d093a593207…

MALICIOUS

PDF

40.2 KB Created: 2020-08-12 19:29:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0390575efe529fce3a6f80ad25916563 SHA-1: 7dae0ce11b1db7d077d08ff78d904806d3af5940 SHA-256: c3b06d093a593207b6e9b77764130217a4a98e3ff009d01b9d0697637abc6621
150 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM. The primary malicious URL identified is https://ttraff.com/pify?keyword=jspdf+autotable+angular+example, which is likely used to redirect users to further malicious content. The presence of numerous links, many pointing to Shopify domains, suggests an attempt to obscure the final destination or to leverage legitimate platforms for distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=jspdf+autotable+angular+example
    • http://bovevi.eatbakermiller.com/uploads/1/3/2/6/132681066/6059408.pdf
    • http://files.finalfinishdetailing.com/uploads/1/3/1/4/131437689/ba086.pdf
    • http://dufavabuv.pbgmys94.com/uploads/1/3/1/4/131437792/966153.pdf
    • https://cdn.shopify.com/s/files/1/0436/2511/9904/files/wananiwosemukoz.pdf
    • https://cdn.shopify.com/s/files/1/0428/1863/3894/files/88501200075.pdf
    • https://cdn.shopify.com/s/files/1/0433/8502/8758/files/fetotuzedusazosabuwe.pdf
    • https://cdn.shopify.com/s/files/1/0437/9679/1456/files/93803119170.pdf
    • https://cdn.shopify.com/s/files/1/0430/3287/1074/files/5448029722.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/744195814.pdf
    • https://cdn.shopify.com/s/files/1/0429/8244/1113/files/tonixaxerifuri.pdf
    • https://cdn.shopify.com/s/files/1/0435/5863/3631/files/unstoppable_high_kick.pdf
    • https://cdn.shopify.com/s/files/1/0438/1779/5741/files/ahle_hadees_ki_haqeeqat.pdf
    • https://cdn.shopify.com/s/files/1/0435/7927/7467/files/rafapakariwuxipewali.pdf
    • https://cdn.shopify.com/s/files/1/0434/3683/4968/files/88275168121.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/sexuality_in_african_culture.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_off00005cfe.bin
1aefb35f51d63c4a027796c83c1c11f2608d2052bbec24567f7f428244d65be4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFE 5556 bytes
font_01_sfnt_off00006fc6.bin
454aabfb9c2d1736fc9a65f37bea6a4e23a8ff7f54492f333423e273861cfbf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC6 10568 bytes

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