Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce819b7d3f12de93…

MALICIOUS

PDF

39.0 KB Created: 2020-08-24 14:44:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c2cf9b15750b441116489b9fa52dd52 SHA-1: 61cc5de3873c02c6ea120cb7e8d7d87c6c4a394e SHA-256: ce819b7d3f12de93a014de198a2843bf72fbc4585560a781c54e246bf7071bc0
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific malicious redirector URL disguised as a car manual. The primary malicious link, 'https://ttraff.com/pify?keyword=dodge+charger+sxt+2017+manual', is designed to redirect users to potentially harmful content. The presence of numerous links to Shopify-hosted PDFs, while some are benign, suggests a tactic to inflate search engine rankings or distribute malicious content through seemingly legitimate channels. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or scam attempt.

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=dodge+charger+sxt+2017+manual
    • http://baduvov.jacquelinecutler.com/uploads/1/3/0/8/130814229/76e426f43da.pdf
    • http://files.lucyhall-photography.com/uploads/1/3/0/7/130739366/83d733c6f7223.pdf
    • http://files.pmgrouphk.com/uploads/1/3/0/7/130775950/viwulikelekososipaze.pdf
    • https://cdn.shopify.com/s/files/1/0434/1828/8284/files/aero_space_reports_forms.pdf
    • https://cdn.shopify.com/s/files/1/0435/6970/9217/files/al_horford_injury_report.pdf
    • https://cdn.shopify.com/s/files/1/0432/8462/7616/files/xaxasuxogan.pdf
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/30609752492.pdf
    • https://cdn.shopify.com/s/files/1/0432/5448/1056/files/mosedasu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8752/8103/files/97913498252.pdf
    • https://cdn.shopify.com/s/files/1/0429/8201/5135/files/39378143474.pdf
    • https://cdn.shopify.com/s/files/1/0435/2576/7320/files/teacher_aptitude_test_questions.pdf
    • https://cdn.shopify.com/s/files/1/0429/9236/9823/files/59653884318.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_off000058cc.bin
e2f265785ba4d7548c54c5f4fda2a5954b93aa4d6be6a244c0012abbf70cbd79		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58CC 5828 bytes
font_01_sfnt_off00006c95.bin
c7f5c1c1044f5c66852de93ed175fcd2ec76298d26d5d6764be3e4884784b1d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C95 10280 bytes

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