Malicious PDF — malware analysis report

Static analysis result for SHA-256 adce8bfcfb6315e6…

MALICIOUS

PDF

47.6 KB Created: 2020-04-06 13:40:19 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 58c88a1aa4ddb972a6f2d4877a40ab4b SHA-1: 5ae410b5df5be1b56511f3b03409384ef5df0b78 SHA-256: adce8bfcfb6315e6fac20c49109b93d5cd8ee68e157b19337c26d3f4beaadcd8
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The document body itself is largely unreadable, but the presence of numerous links to unrelated domains suggests a link farm or redirection scheme. No scripts were extracted, limiting further analysis of direct payload delivery.

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://urbanvertical.ca/uploads/1/3/1/1/131164475/131164475.html#escritas+leyenda+en+ingles+cortas
    • http://providencedrivingschool.net/uploads/1/3/0/5/130550931/tatiwesijiz.pdf
    • http://novifrontdesk.com/uploads/1/3/0/7/130775929/f17258602.pdf
    • http://marib-heininen.net/uploads/1/3/0/4/130478772/f17bf913464b1.pdf
    • http://dare2buacademy.com/uploads/1/3/0/7/130738989/3890800.pdf
    • http://theheadagency.com/uploads/1/3/0/4/130475996/kupimotinup.pdf
    • http://thebetterlifepodcast.org/uploads/1/3/0/4/130488273/votulabitog_sesimivudufuj_jigufaxu_gagosada.pdf
    • http://motorcycle-minister.com/uploads/1/3/0/2/130291809/2babd57866.pdf
    • http://prestigecateringhamilton.com/uploads/1/3/0/5/130551526/zorab.pdf
    • http://bedbugsfighter.info/uploads/1/3/0/9/130969357/zupexose_maraxido.pdf
    • http://kg-re.com/uploads/1/3/0/4/130476523/3904103.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_off00008f6f.bin
f494184b48e351bb3477af96e0e2bf67a104ea530f5745abbe86375ebc2deb00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F6F 9000 bytes

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