Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9084bc2d08d034f…

MALICIOUS

PDF

52.6 KB Created: 2020-08-15 07:37:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56415a2a823039bac22c8d97ab11b18e SHA-1: fb09b98a5d7b7019dbf5ed279475a3ceceae55cd SHA-256: d9084bc2d08d034fd687c76e909bc6a2727d08cd51d20de1200424f2f332d500
120 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain, ttraff.cc. This indicates a phishing or redirection attempt, likely to deliver a malicious payload or lead the user to a fraudulent site. The document body, though garbled, contains the target URL, reinforcing the malicious intent. No scripts were extracted, but the PDF structure itself facilitates the attack.

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.cc/pify?keyword=biochemical+test+for+e.+coli+pdf
    • http://files.michellemorrisonwrites.com/uploads/1/3/1/3/131384575/9098fa9835ef474.pdf
    • http://files.akademikreatifindonesia.com/uploads/1/3/1/1/131163959/d556b37f9f10.pdf
    • http://depodivo.npsarea12.com/uploads/1/3/0/8/130874284/1360371.pdf
    • https://cdn.shopify.com/s/files/1/0430/7035/7661/files/acoustic_absorption_materials.pdf
    • https://cdn.shopify.com/s/files/1/0435/3097/7431/files/5986292577.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nitopufekuriwuk.pdf
    • https://cdn.shopify.com/s/files/1/0432/5349/8019/files/28048013433.pdf
    • https://cdn.shopify.com/s/files/1/0432/8197/3416/files/93026198949.pdf
    • https://cdn.shopify.com/s/files/1/0437/6851/2669/files/ganpati_atharvashirsha_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/5285/9543/files/jedotamodixixujowuxefov.pdf
    • https://cdn.shopify.com/s/files/1/0437/6484/2657/files/buzer.pdf
    • https://cdn.shopify.com/s/files/1/0435/6695/6707/files/wagewipizurajowure.pdf
    • https://cdn.shopify.com/s/files/1/0434/5266/1926/files/33470691831.pdf
    • https://cdn.shopify.com/s/files/1/0432/7142/2115/files/xurozu.pdf
    • https://cdn.shopify.com/s/files/1/0450/0422/6724/files/bickerstaff_neurology_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/4571/6129/files/xazuxozerunotoges.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_off00009023.bin
065011ea49273424183109012fd0cee345d6ecd62a0acdfd69e8f7af46680161		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9023 5476 bytes
font_01_sfnt_off0000a293.bin
bf2a354edd93f5a40ad6d3eb206d42bfbed16a32b8bc5eeb2010b2083a283137		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA293 10296 bytes

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