Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba3e13c915a958cc…

MALICIOUS

PDF

45.3 KB Created: 2020-04-12 02:01:41 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9334fe65cc48aa1ef7861655f29a1683 SHA-1: d04e6c89f60591d9ab583b540268d0b2cf933704 SHA-256: ba3e13c915a958cc7344caef610378d1a65aad7532887b8819bb1a5d0e8dd2bf
62 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Gather Victim Identity Information T1204 Malicious Link

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though heavily obfuscated, contains a URL that is also listed among the extracted IOCs. This suggests a link farm or SEO manipulation tactic, potentially leading users to malicious content or phishing sites.

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://s4sleep.net/uploads/1/3/0/5/130544070/130544070.html#oraciones+subordinadas+adverbiales+finales
    • http://jubilantdesigns.org/uploads/1/3/0/4/130476079/morodugakiloduse.pdf
    • http://brenhamfoundationrepair.com/uploads/1/3/0/5/130590525/6290739.pdf
    • http://segabnb.com/uploads/1/3/0/6/130639590/metijurolubajakuz.pdf
    • http://peelhomesolutions.com/uploads/1/3/0/6/130603749/d96280.pdf
    • http://stjohnrapidan.org/uploads/1/3/0/9/130969644/733636.pdf
    • http://demureduchess.com/uploads/1/3/0/5/130543333/3640640.pdf
    • http://stevesgarageattic.com/uploads/1/3/0/4/130490019/fuginaji-buxatomogago-bowegenolunap.pdf
    • http://avalaina.com/uploads/1/3/0/5/130551222/fesutajodosig.pdf
    • http://strmopus.com/uploads/1/3/0/4/130488530/8543508.pdf
    • http://roxannegoodcellart.com/uploads/1/3/0/5/130590047/3324183.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_off00008711.bin
02a570e838dd5a629c0421cbc2781b9664ce3ef5a2ae6151319774c8a18b9489		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8711 8888 bytes

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