Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5b9253ddeab4fa3…

MALICIOUS

PDF

60.1 KB Created: 2020-09-04 19:18:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d278511e9470d9780c754210c46fd36 SHA-1: 2b4cd4f06442b6f2f027747194b0f5dd3610f0c3 SHA-256: a5b9253ddeab4fa3141f13857e98fa95b0d66975a92109c853946a92f3c91810
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic indicating it links to a malicious redirector, specifically `https://ttraff.link/wix?keyword=astrology+101+kathleen+sears+pdf`. This redirector likely leads to further malicious content or phishing pages. The document also exhibits characteristics of a PDF link farm, with numerous links to other PDFs hosted on Shopify, suggesting an attempt to obscure the final malicious destination or engage in SEO manipulation for malicious purposes. No scripts were extracted from this sample.

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.link/wix?keyword=astrology+101+kathleen+sears+pdf
    • https://cdn.shopify.com/s/files/1/0434/4306/0901/files/dazef.pdf
    • https://cdn.shopify.com/s/files/1/0435/4700/0983/files/solaf.pdf
    • https://cdn.shopify.com/s/files/1/0438/1537/0912/files/free_dreamweaver_templates_cs5.pdf
    • https://cdn.shopify.com/s/files/1/0465/0513/2184/files/91410206614.pdf
    • https://cdn.shopify.com/s/files/1/0432/1191/5421/files/46503136754.pdf
    • https://cdn.shopify.com/s/files/1/0428/1021/2518/files/descargar_anger_of_stick_5_hackeado_apk.pdf
    • https://cdn.shopify.com/s/files/1/0429/2666/9987/files/guvuvikajukilavutumotunep.pdf
    • https://cdn.shopify.com/s/files/1/0431/7764/0092/files/twin_xl_cotton_fitted_sheet_only.pdf
    • https://cdn.shopify.com/s/files/1/0434/3791/6312/files/dipami.pdf
    • https://cdn.shopify.com/s/files/1/0434/4610/8312/files/86380283350.pdf
    • https://cdn.shopify.com/s/files/1/0431/7511/6961/files/11107844544.pdf
    • https://cdn.shopify.com/s/files/1/0431/5945/3860/files/43883400356.pdf
    • https://cdn.shopify.com/s/files/1/0432/4537/1549/files/25860176164.pdf
    • https://cdn.shopify.com/s/files/1/0434/0196/9820/files/wine_bottle_labels_template_vector.pdf
    • https://cdn.shopify.com/s/files/1/0431/4670/7104/files/9217452445.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_off000097c9.bin
5edee322293317343a651e7e17ae6a92558ce79a8b2c3dff248d7dbeb60b63d6
pdf-font-stream PDF embedded font (sfnt) at offset 0x97C9 5652 bytes
font_01_sfnt_off0000ab19.bin
0ead1c4ef6736290cc059b1ab0d38e241f56988e29dc6e3e4c606a7ef3f7b060
pdf-font-stream PDF embedded font (sfnt) at offset 0xAB19 10152 bytes
font_02_sfnt_off0000ce12.bin
9fd9930f22965286e9eb7dda2cdfddabe888e5b92f256b27194cd192ccf24dd1
pdf-font-stream PDF embedded font (sfnt) at offset 0xCE12 16188 bytes