Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd72dd8e914d9fc5…

MALICIOUS

PDF

47.8 KB Created: 2020-08-06 01:51:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f0e5608b21bc94a7a4e771639f99c8f SHA-1: 07841b53cd6f93a16a88924b4bf7ccbcb3e99b58 SHA-256: fd72dd8e914d9fc55b554ba2e8c104131f048f0118d81e89223d74ee9a2c4829
150 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, with one identified as a malicious redirector. The primary malicious link, 'https://ttraff.ru/pify?keyword=goldoni+la+bottega+del+caff%25C3%25A8+pdf', suggests a potential phishing or scam attempt by redirecting users to potentially harmful content. The presence of a large link farm also indicates a non-standard document purpose, likely related to SEO manipulation or traffic generation for malicious sites.

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.ru/pify?keyword=goldoni+la+bottega+del+caff%25C3%25A8+pdf
    • http://files.quantumpoint.org/uploads/1/3/0/8/130874031/fexurugomaseba_livorejalolokib_kuluvewowa.pdf
    • http://files.ausginday.com/uploads/1/3/1/3/131380619/9245598.pdf
    • http://pejolikat.radarresearch.com/uploads/1/3/1/4/131482962/7574609.pdf
    • https://cdn.shopify.com/s/files/1/0440/4844/9686/files/sevojetenara.pdf
    • https://cdn.shopify.com/s/files/1/0429/2876/7143/files/65933832395.pdf
    • https://cdn.shopify.com/s/files/1/0437/6697/2577/files/35619462453.pdf
    • https://cdn.shopify.com/s/files/1/0434/6216/4644/files/63605493759.pdf
    • https://cdn.shopify.com/s/files/1/0432/4684/6107/files/jizutuvelobeveva.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/zixozozotarulunag.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/zotugijozimezupeg.pdf
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/pupavuvibofuze.pdf
    • https://cdn.shopify.com/s/files/1/0431/1459/4464/files/83444165420.pdf
    • https://cdn.shopify.com/s/files/1/0431/1095/7210/files/kuloluliwazosobofid.pdf
    • https://cdn.shopify.com/s/files/1/0434/6095/2229/files/jirudu.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_off000079f0.bin
b99f55bc462ba5c7a184af7c1c91f74257ccd4ec7987aacfbab8e5839657c39d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79F0 5360 bytes
font_01_sfnt_off00008c0a.bin
1b7d90aeb740db03c299ceb684d563d3b8f7cd307e9564727cf71927f6169413		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C0A 11216 bytes

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