Malicious PDF — malware analysis report

Static analysis result for SHA-256 2330ee2a95b29043…

MALICIOUS

PDF

45.4 KB Created: 2020-08-30 01:46:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a67a91aede9ff64a245c3c5551e0e2ca SHA-1: 2d72d592c7ca916f6b4e8c9809395d9c71ff3bec SHA-256: 2330ee2a95b2904367da9ae4b185b214999c60b840b8c6b263d268151e4dc3a0
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains but are likely part of a link farm designed to obscure malicious intent. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.cc/wix?keyword=normas+iso+y+din+para+dibujo+tecnico'. This suggests the document's primary purpose is to redirect users to a malicious site, likely for phishing or malware distribution.

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.cc/wix?keyword=normas+iso+y+din+para+dibujo+tecnico
    • https://cdn.shopify.com/s/files/1/0434/6255/7856/files/traditional_bookbinding_techniques.pdf
    • https://cdn.shopify.com/s/files/1/0454/7497/1800/files/lusejukiwufudimanalexa.pdf
    • https://cdn.shopify.com/s/files/1/0453/9875/3448/files/sosagigi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/57754782588.pdf
    • https://cdn.shopify.com/s/files/1/0437/4839/3112/files/nogipug.pdf
    • https://cdn.shopify.com/s/files/1/0437/4013/5575/files/quarterly_report_icsi_format.pdf
    • https://cdn.shopify.com/s/files/1/0429/5937/2439/files/fedisedirixudum.pdf
    • https://cdn.shopify.com/s/files/1/0434/5731/4983/files/star_wars_9_poster.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7741/files/55324193493.pdf
    • https://cdn.shopify.com/s/files/1/0431/0463/2992/files/zadef.pdf
    • https://cdn.shopify.com/s/files/1/0431/6335/3244/files/questionnaire_on_working_capital_management.pdf
    • https://cdn.shopify.com/s/files/1/0432/3311/6315/files/10662102273.pdf
    • https://cdn.shopify.com/s/files/1/0431/3654/9018/files/all_about_space_issue_81.pdf
    • https://cdn.shopify.com/s/files/1/0430/6341/0845/files/longman_essential_idioms_in_english.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_off0000700c.bin
49327c33e566fba1ce8d9975d96e59b9a17d2742448ec4c43bec84085d9c33a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x700C 5476 bytes
font_01_sfnt_off00008291.bin
ea18251e935732aaffda88faf441aaa7818f3f75c7eba02ca53a28e38a2ccdc0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8291 11372 bytes

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