Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5ba4ca794245460…

MALICIOUS

PDF

48.7 KB Created: 2020-08-18 19:33:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01e4de5e80e68f2ab85bbef12ca6645c SHA-1: f2895f1d36891d02b714b55a69923e586a3025a2 SHA-256: f5ba4ca79424546084f6fe8c15e9c8fc678288d072a0ff4cebce3ad1afe8a4ec
150 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is disguised as 'Atal pension yojana guidelines'. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF documents, many hosted on Shopify. The primary malicious URL is https://ttraff.cc/pify?keyword=atal+pension+yojana+guidelines, which likely serves as a lure to a phishing or malware distribution site.

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/pify?keyword=atal+pension+yojana+guidelines
    • http://files.davidbobier.ca/uploads/1/3/2/6/132682778/ragapodimufis.pdf
    • http://files.majkenbdesign.com/uploads/1/3/1/6/131606487/46109da50e9c20.pdf
    • https://cdn.shopify.com/s/files/1/0438/9984/6824/files/procesamiento_de_materiales_ceramicos.pdf
    • https://cdn.shopify.com/s/files/1/0429/3846/6467/files/11350993941.pdf
    • https://cdn.shopify.com/s/files/1/0432/9934/0448/files/fitobunexorulavivixikuxa.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7287/files/4036135651.pdf
    • https://cdn.shopify.com/s/files/1/0433/6146/8567/files/filiwivetefizaludato.pdf
    • https://cdn.shopify.com/s/files/1/0436/8610/1145/files/49459291513.pdf
    • https://cdn.shopify.com/s/files/1/0438/1887/7090/files/66271134471.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vuwunojipodaga.pdf
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/total_war_rome_2_trainer.pdf
    • https://cdn.shopify.com/s/files/1/0452/6866/4481/files/84584524791.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064b9.bin
5dce5d463849d37ad7bb2d98a12fec45545bb08af9413965a05b0258c46cfb5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64B9 5200 bytes
font_01_sfnt_off00007686.bin
b4d156fcca25363d49b209b6bb0144a6beddc6f301d781c7070fefe0a090de46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7686 10080 bytes
font_02_sfnt_off00009941.bin
d00ba4d902da8bb4223ee207723ab9b798df4bc901eef213c0056b48288d078a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9941 8812 bytes

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