Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fc4800000f5523f…

MALICIOUS

PDF

41.2 KB Created: 2020-04-19 01:52:50 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a48271b036997fbe7f07f58b1c9a5baf SHA-1: a1967f22ff2da634c3d82c81da550d08fd621835 SHA-256: 3fc4800000f5523f4e74990055c31f47961524a0161531a6faaeecd188f71612
70 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to other PDFs hosted on similar domains, suggesting a link farm designed to obscure malicious content. The document body contains a call-to-action phrase and a link to 'certificate template blank', likely a lure to encourage users to click on one of the embedded malicious URLs. The primary malicious URLs identified are hosted on domains like nesher7.com and moralestruckingllc.com.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://moralestruckingllc.com/uploads/1/3/1/3/131384135/131384135.html#certificate+template+blank
    • http://nesher7.com/uploads/1/3/0/8/130813395/be348.pdf
    • http://remaa.ca/uploads/1/3/1/4/131407815/5a92157ccb3d.pdf
    • http://lnphotography.org/uploads/1/3/0/4/130483499/fubilitifikaseroj.pdf
    • http://cuivrevalley.com/uploads/1/3/0/2/130272231/d3762c6ab.pdf
    • http://www.robertblancia.com/uploads/1/3/0/5/130588789/gukis.pdf
    • http://campobelloislandguide.com/uploads/1/3/0/4/130479171/zuluvezetuwezaragaj.pdf
    • http://basicbalance.net/uploads/1/3/0/2/130274088/3537742.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007889.bin
9d4a76fbad8bcad5f1d519444bc3ff21986317c03b5dcc5fb471b4f1524bd537		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7889 8520 bytes

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