Malicious PDF — malware analysis report

Static analysis result for SHA-256 964e47607b8cda28…

MALICIOUS

PDF

38.4 KB Created: 2020-08-31 04:06:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9fbc7a84a76bc1249e2944be7a24a51 SHA-1: afea13dd12425073f48242f6ba7696575c413349 SHA-256: 964e47607b8cda28e3c8bd33c03e064b3a9fb8e007b95b4ecb1321cb9b91388a
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=zexel+diesel+pump+manual'. This URL is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to 'zexel diesel pump manual', suggesting a lure to disguise the malicious intent. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, including 'https://static.usrfiles.com/ugd/b8c837_d238e8a2d67e4e41911288f40a2d4cc3.pdf', which is part of a larger set of links.

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/wix?keyword=zexel+diesel+pump+manual
    • https://static.usrfiles.com/ugd/b8c837_d238e8a2d67e4e41911288f40a2d4cc3.pdf
    • https://static.usrfiles.com/ugd/158fb9_89dee87e9e1045e08371bf0fe5bbaf88.pdf
    • https://static.usrfiles.com/ugd/e3ed1f_ef59b77062684fda96ce6add042dcb4e.pdf
    • https://static.usrfiles.com/ugd/68ec51_8ddf30fc65454ea4adab12a753a84304.pdf
    • https://static.usrfiles.com/ugd/b8c837_a0412d6663414fa8aff2bbdb051e9225.pdf
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/9414826004.pdf
    • https://cdn.shopify.com/s/files/1/0437/6395/7909/files/kifiginige.pdf
    • https://cdn.shopify.com/s/files/1/0435/5548/7905/files/notolebe.pdf
    • https://static.usrfiles.com/ugd/19103d_8771f90c20684342bb5ab6339b945009.pdf
    • https://static.usrfiles.com/ugd/d2cc1f_d26f2f20e59646fba5ec44b0cfbb2a07.pdf
    • https://static.usrfiles.com/ugd/f4de5e_4c28b69192e84e47bc66bf984c821659.pdf
    • https://static.usrfiles.com/ugd/3aca14_b16daf8570a849f4b99dc6fea9682fef.pdf
    • https://static.usrfiles.com/ugd/c0b427_a1d1b6342e3c45c09ef1671699f0980c.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_off00005a37.bin
db6ebabbe1fe3cbf1edf974f5b760e1e7d4130f8ce488ad15499c85ff82e63fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A37 5032 bytes
font_01_sfnt_off00006b4a.bin
29b0283c94da542e3cfbfc0a5c18c26b44ae990c9014ad3b07314db525183604		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B4A 9920 bytes

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