Malicious PDF — malware analysis report

Static analysis result for SHA-256 58153eed75348cd7…

MALICIOUS

PDF

41.0 KB Created: 2020-08-25 17:04:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 712511c0e6fafe07bcdca321f7fa28df SHA-1: 265bcafe0646cc54e3cb76a43d6f37e325ce6d26 SHA-256: 58153eed75348cd70da727c6171e96c6b65f85eaec0991790d038b5f5ecbf09e
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirect. This suggests a phishing or redirection attack designed to lead the user to harmful content.

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=a+flower+is+not+a+flower+pdf
    • http://jenuki.danalockhart.com/uploads/1/3/1/4/131438379/9579537.pdf
    • http://tepeno.thelinksconnection.co.uk/uploads/1/3/2/6/132681670/5d2f41c6cf8.pdf
    • http://goxuweg.susanyu.org/uploads/1/3/2/7/132712615/xisisosujuzat.pdf
    • http://suzixig.hackbarthhealing.com/uploads/1/3/1/6/131606349/263c92cd6dc5a7.pdf
    • https://cdn.shopify.com/s/files/1/0432/3305/0779/files/79369283881.pdf
    • https://cdn.shopify.com/s/files/1/0428/9023/1974/files/94333624098.pdf
    • https://cdn.shopify.com/s/files/1/0429/7955/7535/files/66267094502.pdf
    • https://cdn.shopify.com/s/files/1/0436/1509/2893/files/xoxopako.pdf
    • https://cdn.shopify.com/s/files/1/0436/0824/4381/files/fiditit.pdf
    • https://cdn.shopify.com/s/files/1/0431/8317/7885/files/siloguwuwelurimipidevuk.pdf
    • https://cdn.shopify.com/s/files/1/0435/2652/0987/files/33649714963.pdf
    • https://cdn.shopify.com/s/files/1/0464/9143/5176/files/duwudonakozezuwesuwo.pdf
    • https://cdn.shopify.com/s/files/1/0436/0539/3571/files/72583788570.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87745409623.pdf
    • https://cdn.shopify.com/s/files/1/0459/9690/0511/files/pizoxinojimowakaxenigafi.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_off00006408.bin
d4762dbba933d6276d0176954f4fc7c83a0f77f983945d7a2c4ebddcc140748d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6408 5116 bytes
font_01_sfnt_off00007590.bin
6a0cb12323a62624b02a9bbda34e91b3332dfdc2ca8475bb21fd1bcd2da7a49e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7590 9840 bytes

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