Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f2575db5c2a0240…

MALICIOUS

PDF

37.3 KB Created: 2020-08-18 15:31:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e851fce4e648ad0448e46ec9ae30261 SHA-1: 192be9c07fa349cf972031d1bcadead719a41037 SHA-256: 5f2575db5c2a0240abce7f5470626aabde4d3b884feda6b0c5d105916e3c6c06
94 Risk Score

Malware Insights

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

The PDF file contains a link disguised as a free ringtone download, which redirects to a known malicious URL. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were directly extracted, the PDF structure and embedded link suggest an attempt to redirect the user to malicious content, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=free+arabic+music+ringtones
    • http://xuvodobu.mindandhomeinsurance.com/uploads/1/3/0/8/130874359/73b91ef.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/0375/4142/files/paul_g_hewitt_conceptual_physics.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niwaxesajikibulunetegidu.pdf
    • https://cdn.shopify.com/s/files/1/0438/4810/6134/files/79850433277.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31082235151.pdf
    • https://cdn.shopify.com/s/files/1/0429/1415/2607/files/nugameja.pdf
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/22428835673.pdf
    • https://cdn.shopify.com/s/files/1/0431/1403/7409/files/5709952625.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000055eb.bin
0f0e98f2c79d888274e1503a2410d3e79db847763f236b68ba61af39d9cb17ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55EB 5180 bytes
font_01_sfnt_off00006774.bin
4452ee37be27875cb98a5a3f0b4baf695c3d75fa9ca156c7bbaca7a657be9e92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6774 9816 bytes

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