Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd3bfea10e86d224…

MALICIOUS

PDF

48.0 KB Created: 2020-08-10 23:50:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 574b04c50cfd26e5319564019b7299e7 SHA-1: 40bbc6ab1467a72266ab642c9cc4dcf14638c936 SHA-256: bd3bfea10e86d224b5143e84ec48645cd6a951aea660a8dd2e5e20286ac130bb
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDFs. The primary malicious URL is https://ttraff.com/pify?keyword=cfa+level+3+alternative+investments+pdf, which likely serves as a gateway to further malicious content. The document's content and structure suggest a phishing or scam attempt disguised as a financial document.

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=cfa+level+3+alternative+investments+pdf
    • http://files.hiddengemcanada.com/uploads/1/3/2/6/132681586/nalowusuwitad-xudaveves.pdf
    • http://files.laviishluxxe.com/uploads/1/3/0/9/130969356/1636614.pdf
    • http://files.potentialistworkshop.com/uploads/1/3/1/3/131379375/2899574.pdf
    • https://cdn.shopify.com/s/files/1/0431/8131/0114/files/98915849804.pdf
    • https://cdn.shopify.com/s/files/1/0431/8609/4241/files/bojejalunuputavijexozufe.pdf
    • https://cdn.shopify.com/s/files/1/0430/0242/9593/files/wamoperulobosixugajuvetaw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gegexovikorojirokelaxedu.pdf
    • https://cdn.shopify.com/s/files/1/0436/9675/0746/files/acr_tirads_white_paper.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8007882555.pdf
    • https://cdn.shopify.com/s/files/1/0430/3133/0969/files/58318523286.pdf
    • https://cdn.shopify.com/s/files/1/0433/8027/7406/files/44049551990.pdf
    • https://cdn.shopify.com/s/files/1/0430/1986/2179/files/lubavefiresokam.pdf
    • https://cdn.shopify.com/s/files/1/0432/1142/3902/files/54238798792.pdf
    • https://cdn.shopify.com/s/files/1/0433/3957/9546/files/difference_between_quality_assurance_and_quality_control.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_off00007d6a.bin
1b45171434fe0d280539f19c5cbed46da1e287b9117e76100a475619b2522cd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6A 5316 bytes
font_01_sfnt_off00008f71.bin
0e61f02fc7a12a50d60568f456fd019bf94d3f87da3173b869ecbc4379cebdd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F71 10536 bytes

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