Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eec010867d6250c…

MALICIOUS

PDF

95.9 KB Created: 2020-04-13 11:58:35 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7f628f06d022d849400ca1b24fb2ca66 SHA-1: 50ae8bff7fbd311d0ab835ca9500727bc940fd4d SHA-256: 1eec010867d6250c753f50fea37954ed304068f48e6d1be9007e25d2b7414dc3
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links to other PDF files hosted on various domains, indicating a link farm or SEO manipulation tactic. The primary heuristic identified a "PDF_SEO_LINK_FARM" with 18 links, suggesting the document's purpose is to redirect users to these external resources. The embedded URL and the document body also point to external web content, reinforcing the attack pattern of luring users to potentially malicious or deceptive websites.

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://catandwren.com/uploads/1/3/0/4/130476413/130476413.html#que+fue+la+guerra+fria+wikipedia
    • http://nogrindnoglorytx.com/uploads/1/3/0/7/130775897/5831981.pdf
    • http://blinkmfg.com/uploads/1/3/0/5/130589275/xinilovower.pdf
    • http://especialistaslitigioambiental.com/uploads/1/3/0/6/130621470/wosonumazolojug_gabusez.pdf
    • http://alwaysimproving.org/uploads/1/3/0/5/130540405/9697bf7eb3.pdf
    • http://rrlegalsolutions.com/uploads/1/3/0/8/130874492/sulijuribe-balirowuteriwo.pdf
    • http://wwdholdings.com/uploads/1/3/0/2/130291552/6214681.pdf
    • http://rallycarspecs.com/uploads/1/3/0/7/130740590/839856668.pdf
    • http://860835136414240062.com/uploads/1/3/1/4/131438193/zobepajizidunos.pdf
    • http://spliceoflifefilms.com/uploads/1/3/0/6/130639779/ravukogijilu_bekopi.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_off00012b36.bin
aa1772be0d48b44c8adf64a9a7a5d87394004043bbe32bbcf11a1484eaff7318		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B36 11400 bytes
font_01_sfnt_off000152e4.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x152E4 2652 bytes
font_02_sfnt_off00015c4b.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15C4B 16036 bytes

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