Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e1d6b5346aed6a6…

MALICIOUS

PDF

41.2 KB Created: 2020-08-14 10:58:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70860164d3b67e08e3ed42c63dedbb20 SHA-1: 2976b4b01d3fff39f6e2797178cbf2fb76713e7a SHA-256: 3e1d6b5346aed6a6000d7dcdb70447f41c7586fb973ae1655024026e8239d461
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=human+anatomy+atlas+pdf+file', which is a strong indicator of a phishing or scam campaign. The document also exhibits characteristics of a link farm, embedding numerous external PDF links, many of which are hosted on Shopify. The primary intent appears to be directing users to malicious infrastructure through the embedded link.

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=human+anatomy+atlas+pdf+file
    • http://files.mail.stthomaskids.com/uploads/1/3/2/7/132740804/piwibixu_babifubuvekiful.pdf
    • http://pamoja.optimizedcompounds.com/uploads/1/3/1/3/131380284/sexisewurafatareno.pdf
    • http://files.alleghenybuilders.com/uploads/1/3/0/9/130969254/tobebomam_rewekibamakob.pdf
    • https://cdn.shopify.com/s/files/1/0434/3070/7356/files/67474715509.pdf
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/young_thug_good_times_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/6404/9318/files/41188790013.pdf
    • https://cdn.shopify.com/s/files/1/0430/6488/5397/files/31470219841.pdf
    • https://cdn.shopify.com/s/files/1/0432/6631/0299/files/batevenudiwevusa.pdf
    • https://cdn.shopify.com/s/files/1/0435/7763/9075/files/dowamo.pdf
    • https://cdn.shopify.com/s/files/1/0435/5643/8165/files/zekurilomanugerumibomi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6935/7728/files/pdf_to_word_converter_download_for_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8263/files/identifying_rational_numbers_worksheet.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_off000064db.bin
553a7b574f749c61dd3a620cf4e7bdad765f4b928eb512e5f836322d02888aa8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64DB 5156 bytes
font_01_sfnt_off00007659.bin
c8cd8f058536b7ead58ea3e0efa7ce1baf3676e4d84915552e3d62cf43969c42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7659 9940 bytes

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