Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f552c4f7c45e3fa…

MALICIOUS

PDF

31.6 KB Created: 2020-11-01 11:15:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: edd24bbc47d893f799df239136423bb1 SHA-1: 7c2fb34fc5929fc27661cb98be268017caca092c SHA-256: 0f552c4f7c45e3fac3fc437bb0759fd7f5c3b1cdfb1c3f4c08005f7cea789890
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. The document body, though heavily obfuscated, also contains this URL. This suggests the document's primary purpose is to redirect the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 2

  • 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.
  • 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://ggtraff.ru/aws?keyword=turnitin+scores+good+ones
    • https://cdn-cms.f-static.net/uploads/4380859/normal_5f8ae9c741c80.pdf
    • https://cdn-cms.f-static.net/uploads/4424007/normal_5f97ec2f1309a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/sasufufa/aha_bls_provider_manual_2016.pdf
    • https://cdn.shopify.com/s/files/1/0479/2562/4988/files/ohms_law_triangle_watts.pdf
    • https://cdn.shopify.com/s/files/1/0481/3108/0345/files/87821943168.pdf
    • https://cdn.shopify.com/s/files/1/0496/6157/5325/files/mijonirelupewarefuvalej.pdf
    • https://uploads.strikinglycdn.com/files/fd2521f6-847d-4895-b77c-51aa487c3c82/pomojikojular.pdf
    • https://s3.amazonaws.com/tadovu/91658455074.pdf
    • https://uploads.strikinglycdn.com/files/7a12bef1-a955-4f6e-ae2f-08e7b57ea1ae/noderadi.pdf
    • https://cdn.shopify.com/s/files/1/0266/7941/0862/files/descargar_messenger_lite_apkhere.pdf
    • https://uploads.strikinglycdn.com/files/ef4c8420-3e78-460d-be8f-b28b8948804d/dopesafemofepifarawe.pdf
    • https://uploads.strikinglycdn.com/files/79bde202-26dd-4db4-822f-04aeb7080b90/34266497251.pdf
    • https://s3.amazonaws.com/pisedij/35531666604.pdf
    • https://cdn.shopify.com/s/files/1/0502/6814/3765/files/grand_theater_hattiesburg_ms_hours.pdf
    • https://s3.amazonaws.com/leguvefu/thomas_calculus_10th_edition_solution_manual.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f43.bin
55bd9437ad5c6ae4ad6020a55a18da3f6cb8260085c626a76dc31cdecfc7aafc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F43 4812 bytes

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