Malicious PDF — malware analysis report

Static analysis result for SHA-256 8382c06ee95fd78d…

MALICIOUS

PDF

47.3 KB Created: 2020-08-08 09:37:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d3b9db140e1794a10e97064e52957b3 SHA-1: a70b227c0dbe6eb3ec64c78acc746b4550c67ac0 SHA-256: 8382c06ee95fd78d685a8854aa95e7bdb9b021bce9f0a06e94b91f248e914b2e
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 'https://ttraff.cc/pify?keyword=interesting+facts+about+the+human+body+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify domains. The primary malicious URL is likely used to lure users into downloading further malicious content or phishing for credentials.

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=interesting+facts+about+the+human+body+pdf
    • http://files.ashaimanveal.com/uploads/1/3/0/7/130739348/dosimekinevepavupag.pdf
    • http://xorefuder.violiningaja.com/uploads/1/3/1/3/131383544/53ff83b.pdf
    • http://retiwew.cydneyuffindellphillips.com/uploads/1/3/0/7/130776542/3610950.pdf
    • https://cdn.shopify.com/s/files/1/0431/1279/2225/files/agile_scrum_master_certification_exam_questions_dump.pdf
    • https://cdn.shopify.com/s/files/1/0434/6734/1974/files/66361263631.pdf
    • https://cdn.shopify.com/s/files/1/0440/7279/6325/files/lowes_post_hole_digger.pdf
    • https://cdn.shopify.com/s/files/1/0434/5030/2616/files/97908326597.pdf
    • https://cdn.shopify.com/s/files/1/0433/6641/6534/files/soferevipavirirawitutota.pdf
    • https://cdn.shopify.com/s/files/1/0431/2170/5124/files/eloquent_javascript_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/6774/4160/files/rifezopozap.pdf
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/43747185685.pdf
    • https://cdn.shopify.com/s/files/1/0432/8128/5286/files/7153701948.pdf
    • https://cdn.shopify.com/s/files/1/0435/7170/8065/files/kevifedoguwurewefi.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/65895347987.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_off00007aa1.bin
a19b458351ae2a8a087298b3bcfe34bfc4bf301c15823029cb34f96cdd56ff77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA1 5716 bytes
font_01_sfnt_off00008df1.bin
408272929789e91a836db047a770885ab6f332abc7f3c3d876d1c94e058289a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF1 10120 bytes

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