Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bbeecfb9de4789b…

MALICIOUS

PDF

34.2 KB Created: 2020-08-20 09:31:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 735078510f3ef66a7511f3da1c1afc88 SHA-1: f057c3172604da5c3b0000d211d241a5130d8c45 SHA-256: 2bbeecfb9de4789b14b55c354367b55ac55519365c5a5dec67d3b5397efdcbfd
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. This URL is likely used to funnel victims to malicious content. Additionally, the document exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify-hosted PDFs. The presence of the 'chrome apk old' keyword in the redirector URL suggests a lure related to software downloads.

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=chrome+apk+old
    • http://files.botte-boot.com/uploads/1/3/0/8/130813881/9148504.pdf
    • https://cdn.shopify.com/s/files/1/0440/6283/4853/files/lodanikutis.pdf
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/20617210231.pdf
    • https://cdn.shopify.com/s/files/1/0436/5549/5833/files/77553880862.pdf
    • https://cdn.shopify.com/s/files/1/0435/7862/2111/files/aprender_alemo_basico.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/10619285591.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/gekefameno.pdf
    • https://cdn.shopify.com/s/files/1/0463/1327/5557/files/avery_return_address_label_template_8167.pdf
    • https://cdn.shopify.com/s/files/1/0428/3315/0118/files/zewinigezewipagikib.pdf
    • https://cdn.shopify.com/s/files/1/0429/7159/4911/files/52755377280.pdf
    • https://cdn.shopify.com/s/files/1/0432/9901/2766/files/mibifufaxokitepukuzumiron.pdf
    • https://cdn.shopify.com/s/files/1/0463/3604/9313/files/63305741999.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_off00004996.bin
2599c901f8c4c83af4b1d07f3100b5957a19db9854d5ec322893b1d948b6d44b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4996 4988 bytes
font_01_sfnt_off00005a5b.bin
ae048db1c8e16daabad5dfd09be09a1090e1a2b8b995627290f6187b4e12125e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5B 10024 bytes

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