Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e2ea6494e00217…

MALICIOUS

PDF

39.5 KB Created: 2020-08-18 14:24:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ad8426678865a18e0f22cf1e7bef403 SHA-1: fb4f42d027e4687cee28083bf69a6119207bf481 SHA-256: 34e2ea6494e00217987538b310a377c3ba4f4e9919e3721fed2f10ad2c9937e3
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=brave+imdb+parents+guide'. This URL is likely used to redirect users to malicious content. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains, suggesting an attempt to obscure the ultimate destination or leverage benign domains for distribution. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=brave+imdb+parents+guide
    • http://files.essentiallywelle.com/uploads/1/3/1/4/131406437/6154663.pdf
    • http://files.sjephotographyservices.com/uploads/1/3/2/6/132682022/fugozenuzudevanute.pdf
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/tobamunoximanexufopabu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8110/5575/files/ansible_interview_questions_and_answers_for_experienced.pdf
    • https://cdn.shopify.com/s/files/1/0429/2381/9164/files/15320546916.pdf
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/wivawifidetezi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4337/2699/files/6173830299.pdf
    • https://cdn.shopify.com/s/files/1/0437/2122/8440/files/credit_reference_form.pdf
    • https://cdn.shopify.com/s/files/1/0434/1514/2567/files/63179361318.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/kebefexukitifa.pdf
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/97008189518.pdf
    • https://cdn.shopify.com/s/files/1/0432/4950/0315/files/zewusajimifo.pdf
    • https://cdn.shopify.com/s/files/1/0428/0965/5462/files/dinosaur_king_video.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_off00005da7.bin
a601325936a2fc2f2fa86d513526c9ef732eadf5a835de39ae19d6f401330495		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA7 5496 bytes
font_01_sfnt_off0000703a.bin
c236bce4fc71a5a0f8ed735edf43b105a773086f0a4d133d8eeae72a37d20aaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x703A 9732 bytes

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