Malicious PDF — malware analysis report

Static analysis result for SHA-256 358594fef553bb97…

MALICIOUS

PDF

35.3 KB Created: 2020-08-20 03:19:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63ce9d4ea78fac2f53a2f853a22091b1 SHA-1: 2401d14a0df5eac81912b9d27933ab883cbec818 SHA-256: 358594fef553bb9735e5c4421c316f78d3fe6ae953baa323e27e450a3102d06c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a university course listing. This suggests a phishing or social engineering attack aimed at directing users to malicious content. The PDF also exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify-hosted PDFs, likely to improve search engine ranking for malicious purposes.

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=university+of+alberta+course+listing+pdf
    • http://files.vertecreative.com/uploads/1/3/0/9/130969472/tapogid.pdf
    • http://duleselev.karenhurd.com/uploads/1/3/1/0/131070702/cda4fc.pdf
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/46140627763.pdf
    • https://cdn.shopify.com/s/files/1/0435/4283/9455/files/how_to_calibrate_ph_meter.pdf
    • https://cdn.shopify.com/s/files/1/0436/1905/7822/files/bpsc_ae_civil_syllabus_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/80380520467.pdf
    • https://cdn.shopify.com/s/files/1/0430/5531/7149/files/51105962488.pdf
    • https://cdn.shopify.com/s/files/1/0431/6971/0241/files/51165148173.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4952854333.pdf
    • https://cdn.shopify.com/s/files/1/0431/3920/3229/files/fmea_manual_aiag.pdf
    • https://cdn.shopify.com/s/files/1/0427/4143/2487/files/80436523541.pdf
    • https://cdn.shopify.com/s/files/1/0434/7753/2822/files/acrylic_mirror_sheets_suppliers.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61259485886.pdf
    • https://cdn.shopify.com/s/files/1/0427/5660/4070/files/dikumusopafe.pdf
    • https://cdn.shopify.com/s/files/1/0433/7824/5781/files/eagle_scout_letters_of_recommendation.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_off00004ba7.bin
801274378b3fe7ba853713b22de02e83ab3d963e7201ba1d42635e4dcfa31ed4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA7 5616 bytes
font_01_sfnt_off00005ed5.bin
9195ef7f421b9ac4c280845879aba9daf5d19a3be44221a6574f1410bf1de2cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED5 9724 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.