Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7228423232375f8…

MALICIOUS

PDF

48.9 KB Created: 2020-04-09 04:22:26 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 713a7053c59884f65551e2c84dd68ab4 SHA-1: ae2ebca2df420b36d05afdd0d7bb334931443736 SHA-256: e7228423232375f8ff3ca2e6cecb9b3d79e397e98a463f0fc9887a19dda1dabb
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The document body is heavily obfuscated and contains some of the same URLs, reinforcing the idea that the primary purpose is to direct users to external, potentially malicious, content. No scripts were extracted from this sample.

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://purrfectpawtraits.ca/uploads/1/3/0/5/130540642/130540642.html#standard+text+of+nail+technology+
    • http://gabriellathomasfinalportfolio.com/uploads/1/3/0/7/130775831/givawekituwis.pdf
    • http://qimassagesb.com/uploads/1/3/0/3/130323516/efec91.pdf
    • http://churchesindeerpark.org/uploads/1/3/0/6/130621100/0f93e4861c98.pdf
    • http://familieslivingfaith.com/uploads/1/3/0/7/130775125/3bdbf5279243a5.pdf
    • http://innhalt.de/uploads/1/3/0/6/130603688/4002287.pdf
    • http://lapiazzaitalianschool.org/uploads/1/3/0/4/130483147/bitoxajiwuka-mejipe-gofolixu.pdf
    • http://shinbokustudios.com/uploads/1/3/0/6/130603965/vesula_vuwekef.pdf
    • http://onalee.vip/uploads/1/3/0/5/130539825/pubug-wigibus-tonozosi-refajaro.pdf
    • http://ylemagency.site/uploads/1/3/0/5/130550910/4197571.pdf
    • http://tradingused.com/uploads/1/3/0/6/130620853/c6323d.pdf
    • http://asongintheirhearts.org/uploads/1/3/0/8/130814178/9891752.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_off000078c0.bin
db9fe4ff4b2b17ae324e59439ca6b1d3e7e667b6670a1bc29eda3189b9e5483a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78C0 8100 bytes
font_01_sfnt_off0000980a.bin
b5b8895d680ff2f639cddf1bd61fba50117c949cd38e3eb1358751f9686fa7d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x980A 2644 bytes
font_02_sfnt_off0000a169.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA169 16036 bytes

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