Malicious PDF — malware analysis report

Static analysis result for SHA-256 407c0a60e54d12d8…

MALICIOUS

PDF

41.3 KB Created: 2020-08-10 08:40:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 843340e182b8634ed8b261dd44708b79 SHA-1: 33a1c549e3a3cee83999edebe4ebc7404269d90f SHA-256: 407c0a60e54d12d8697d3cdac13ebced6c5e88e9e90bd3ceea0a59cd78511b36
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one heuristic identifying it as a malicious redirector. The document body, though heavily obfuscated, contains a URL pointing to a redirector service. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for further exploitation or phishing. The presence of numerous links, including those hosted on Shopify, indicates a link farm strategy to obscure the final destination.

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=pestel+analysis+of+mcdonalds+pdf
    • http://files.drleifrosenberger.com/uploads/1/3/1/4/131406811/4620737.pdf
    • http://files.marcellakasparart.com/uploads/1/3/1/8/131871467/179947.pdf
    • http://files.celebratetogetherevents.com/uploads/1/3/2/6/132695829/46b5f53.pdf
    • http://files.hareloomupholstery.com/uploads/1/3/1/3/131398308/8489560.pdf
    • https://cdn.shopify.com/s/files/1/0431/9903/7595/files/vasotewaraxadubogexefunob.pdf
    • https://cdn.shopify.com/s/files/1/0435/7426/3963/files/18781354130.pdf
    • https://cdn.shopify.com/s/files/1/0434/8506/9477/files/simoru.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/xubitamoxip.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/hollow_knight_dash_slash.pdf
    • https://cdn.shopify.com/s/files/1/0438/4092/9957/files/mathematics_a_discrete_introduction.pdf
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/73538294562.pdf
    • https://cdn.shopify.com/s/files/1/0429/6248/5407/files/25770793485.pdf
    • https://cdn.shopify.com/s/files/1/0427/5693/1751/files/angiosperm_flower.pdf
    • https://cdn.shopify.com/s/files/1/0433/4111/9647/files/89109185290.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_off00006551.bin
6f8727379778073dcd05b289fe7a359693d473bbff0af73f19658d21fe142929		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6551 5308 bytes
font_01_sfnt_off00007765.bin
0ebf99a232a592717bad995a5a0d9e52924cf8dfc37e3d9ca8fcd9a1b9e22cc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7765 9596 bytes

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