Malicious PDF — malware analysis report

Static analysis result for SHA-256 2318e9dd4e1e09d2…

MALICIOUS

PDF

44.3 KB Created: 2020-07-28 18:29:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6463cc4226a325f808c39ec46c355572 SHA-1: de226bf899f2cf650f5fbfd6b04f1ab4dc784e1c SHA-256: 2318e9dd4e1e09d2922bde039ab201533373b66f215e1aa33c964b03a78f4e1c
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a significant number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious content. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=corrugated+roofing+sheets+b%2526+q', is flagged as a known malicious redirector. The file's structure and the nature of the links suggest an attempt to lure users or to influence search engine results.

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=corrugated+roofing+sheets+b%2526+q
    • http://files.katzkupcakes.com/uploads/1/3/2/6/132696506/e1b36bbd.pdf
    • http://files.3sixtyinc.com/uploads/1/3/2/6/132681885/lewexafele.pdf
    • http://files.tannerfoot.com/uploads/1/3/0/7/130738859/7715938.pdf
    • http://files.estevanwritersgroup.ca/uploads/1/3/1/4/131452870/zowejuja.pdf
    • https://cdn.shopify.com/s/files/1/0433/3718/7493/files/37623758515.pdf
    • https://cdn.shopify.com/s/files/1/0436/1748/4957/files/lakujob.pdf
    • https://cdn.shopify.com/s/files/1/0431/0004/5469/files/26924832913.pdf
    • https://cdn.shopify.com/s/files/1/0427/5788/2022/files/dabenotusividatososodalor.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/rerarovesag.pdf
    • https://cdn.shopify.com/s/files/1/0435/9982/3016/files/pobuxorovus.pdf
    • https://cdn.shopify.com/s/files/1/0435/2655/3755/files/momebilitufobume.pdf
    • https://cdn.shopify.com/s/files/1/0433/8994/3975/files/ramubinura.pdf
    • https://cdn.shopify.com/s/files/1/0432/8977/2187/files/87092423770.pdf
    • https://cdn.shopify.com/s/files/1/0429/6241/9863/files/85048108385.pdf
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/46122939170.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53567737566.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/
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f22.bin
63c3167c3e741fbdac215509a721803b81f065d01b9f92523d64663fb6d95982		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F22 11664 bytes

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