Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bf7b87623603cd0…

MALICIOUS

PDF

131.3 KB Created: 2020-08-20 01:09:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a73e8e9b2f6edd13794149b1fc900c2 SHA-1: 536826f00f83dfca3c5dc4204a73a9fc53780b72 SHA-256: 3bf7b87623603cd04c3f9ccc08d829ba584772d77ae3ab5d0c3cd1acb86d7367
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, many of which are part of a link farm hosted on Shopify. These links ultimately redirect to the malicious domain 'ttraff.com'. This indicates a likely attempt to lure users to malicious content or phishing sites through a deceptive link structure.

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=ilocano+riddles+with+english+translation+and+answers
    • http://puvovus.lhcconsultingpc.com/uploads/1/3/1/6/131636725/6dba74.pdf
    • https://cdn.shopify.com/s/files/1/0429/2745/6419/files/visejonikokoridalalura.pdf
    • https://cdn.shopify.com/s/files/1/0434/2274/4741/files/35115016081.pdf
    • https://cdn.shopify.com/s/files/1/0430/8838/0061/files/gallon_man_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/0522/2813/files/94627220173.pdf
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/betwixt_and_between.pdf
    • https://cdn.shopify.com/s/files/1/0433/7405/1491/files/lufimir.pdf
    • https://cdn.shopify.com/s/files/1/0431/4228/3432/files/98415963780.pdf
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/10063538994.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2454/files/vikavibute.pdf
    • https://cdn.shopify.com/s/files/1/0438/3804/6365/files/wejomiragojiwurefixobuli.pdf
    • https://cdn.shopify.com/s/files/1/0462/2640/7575/files/lojut.pdf
    • https://cdn.shopify.com/s/files/1/0436/1525/6738/files/27243884319.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_off0001c8bc.bin
073abdbb01dfb2d62331263a423e2797ffed8a7458127d394583891420e5b0bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C8BC 5228 bytes
font_01_sfnt_off0001da83.bin
bfe029b7d33f32b881153b9dd9ed93aceff93f11bd15bf206f4bb7e27226b029		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1DA83 10828 bytes

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