Malicious PDF — malware analysis report

Static analysis result for SHA-256 f917a0dda4793e2c…

MALICIOUS

PDF

76.4 KB Created: 2020-05-07 04:33:38 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4c4c54a0534e8561557aa7732d1915fc SHA-1: 84a6c039ac4240eb517ace97f163fc51e6993430 SHA-256: f917a0dda4793e2c771379a08477c3423dba93f68a48b2c7155666cc07852118
62 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to its structure, which includes a large number of external links to various domains. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating the PDF is likely part of a link farm designed to manipulate search engine results or distribute further malicious content. The embedded URLs point to other PDF files or HTML pages hosted on these domains, suggesting a multi-stage distribution or redirection scheme.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://glamkings.com/uploads/1/3/1/3/131383581/131383581.html#pandas+profiling.+profile+report%28+pdf%29
    • http://thatiphoneshow.com/uploads/1/3/0/5/130588388/c48fecbb2e9.pdf
    • http://dulcees.com/uploads/1/3/0/4/130489572/09cb0717.pdf
    • http://ashtoninsuranceagents.com/uploads/1/3/1/6/131606268/699111.pdf
    • http://freedomballoonfestival.com/uploads/1/3/0/6/130620808/8805017.pdf
    • http://misssplendorousbeauty.com/uploads/1/3/1/4/131406557/xiwoxowuzugap_lexukon_weweboxije_lalizadugis.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • 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_off0000966c.bin
f9e0647dedde7db9fda509a745df8f93a653d638fad2af61b154566bd84948f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x966C 29244 bytes
font_01_sfnt_off0000f283.bin
fc2a609ae53c4914583baa65a3c3bbbf5305fdd1cbbd716d2657e41d33b4ec45		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF283 1852 bytes
font_02_sfnt_off0000fb72.bin
48711fe392b1f3cc390e78fd010bbf1cd2fd219ef95d133067f6fe67647921dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB72 11968 bytes

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