Malicious PDF — malware analysis report

Static analysis result for SHA-256 962c73707e6092d0…

MALICIOUS

PDF

41.0 KB Created: 2020-06-18 02:14:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a15c1fef7924864a727107cbeaed960 SHA-1: e6896f2c14f97d1d0c668a73ce474b9cb45ab92d SHA-256: 962c73707e6092d08e2aab7566671d6e783a167270dd8afb21b560ea582bcb5a
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 pointing to other PDF files hosted on various domains. This pattern is indicative of a link farm or a traffic distribution system designed to obscure the ultimate destination of the user. The embedded URLs and the PDF_SEO_LINK_FARM heuristic strongly suggest this malicious intent. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

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://capitalareaexpo.com/uploads/1/3/0/6/130603979/130603979.html#kubota+f3060+parts+manual
    • http://americascoresseattle.com/uploads/1/3/0/3/130323155/sirisaduse-dilipugene.pdf
    • http://forbespoke.co.uk/uploads/1/3/0/5/130590507/reluxobat.pdf
    • http://pro-einfache-sprache.de/uploads/1/3/0/4/130477249/9801614.pdf
    • http://hairreplacementwilmington.com/uploads/1/3/1/3/131381963/vopiluti-mapabibed-zodafer-disakalimu.pdf
    • http://vestablu.com/uploads/1/3/1/1/131163841/gapetitopo.pdf
    • http://barefootbusinessbloggers.com/uploads/1/3/1/4/131438847/c70a6.pdf
    • http://parents.sprigeo.com/uploads/1/3/1/3/131379824/9763717.pdf
    • http://bandsolidrock.com/uploads/1/3/1/3/131384305/zofogaxar.pdf
    • http://candlelight-rsk.com/uploads/1/3/0/4/130483238/rilexox.pdf
    • http://fssitecorp.com/uploads/1/3/1/8/131857445/musone_piwopawupejuju_gokonefija.pdf
    • http://mlhconsultancy.com/uploads/1/3/0/5/130542717/925879.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_off00005f8b.bin
b479e81724526d7050908ed777ab204340dff4ec927454a959fcc1856077cf76		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8B 5332 bytes
font_01_sfnt_off00007182.bin
09432806c315c97ededcf97566c3eabea2826205eef1b2dd3c4a4ae81a8b843c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7182 11344 bytes

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