Malicious PDF — malware analysis report

Static analysis result for SHA-256 bea79a07567f393f…

MALICIOUS

PDF

72.3 KB Created: 2020-08-01 12:41:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53af8009a59e83b2d8fa1580b4851a41 SHA-1: ebfc2de3470ea8ebb93b783bedccda05d5f2cfaa SHA-256: bea79a07567f393feeba55b68f8bb7df12652d026e73fdb14ffb174dad2c0552
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 pointing to other PDF files hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=c+int+main', is identified as a malicious redirector. This suggests the document is part of a link farm designed to distribute malicious content or conduct phishing attacks. The presence of numerous links and a malicious redirector indicates a coordinated effort to lure victims.

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=c+int+main
    • http://files.accssfn.com/uploads/1/3/2/8/132814972/6819840.pdf
    • http://files.savetherockcreekparkdeer.com/uploads/1/3/1/3/131380985/zilanusogav.pdf
    • http://files.dorchesterlabour.org/uploads/1/3/0/8/130874204/532f54.pdf
    • https://cdn.shopify.com/s/files/1/0430/4030/9402/files/54130293370.pdf
    • https://cdn.shopify.com/s/files/1/0435/5332/5224/files/check_register_printable.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekosipavejidowusa.pdf
    • https://cdn.shopify.com/s/files/1/0434/1265/2194/files/62095332654.pdf
    • https://cdn.shopify.com/s/files/1/0438/7245/2776/files/rezataxosudesune.pdf
    • https://cdn.shopify.com/s/files/1/0434/4990/9415/files/selimemoguvumadebomodufax.pdf
    • https://cdn.shopify.com/s/files/1/0431/0843/4081/files/77215502499.pdf
    • https://cdn.shopify.com/s/files/1/0430/0849/1673/files/mifamaxiwaporama.pdf
    • https://cdn.shopify.com/s/files/1/0433/1572/4456/files/4119741026.pdf
    • https://cdn.shopify.com/s/files/1/0438/4597/6224/files/1435935435.pdf
    • https://cdn.shopify.com/s/files/1/0430/9683/4212/files/97803421512.pdf
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/75708539825.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_off0000c807.bin
b0a444a7456fb1cd199c002381f3d6bfd55f50d547e5a33a0fff4b1ba9bbabd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC807 4108 bytes
font_01_sfnt_off0000d5c4.bin
9d48ceb33f775dd45275c1db4ad900102bb6d461295a00f733b671332a47cf75		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C4 15480 bytes
font_02_sfnt_off0001061a.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1061A 4324 bytes

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