Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd60271780428f12…

MALICIOUS

PDF

40.3 KB Created: 2020-06-17 19:49:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c8d62e1c7237ac7ea733c9d2e78c488 SHA-1: 6f670e8cb59a0b66c0490ca4535c09677b078e94 SHA-256: dd60271780428f1246df7421bcef55f67a566da7552189f253c456be098f2bd9
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 various domains, many of which appear to be part of a link farm. The heuristic 'PDF_SEO_LINK_FARM' indicates a high volume of such links, suggesting a malicious intent to manipulate search engine results or redirect users to potentially harmful content. The document body, though heavily obfuscated, contains references to URLs that are also present in the link farm.

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://ellenlivingston.net/uploads/1/3/1/1/131164171/131164171.html#mumbai+best+route+guide
    • http://govancommunityproject.com/uploads/1/3/0/6/130605164/bojekulobid.pdf
    • http://greatlakeselectricohio.net/uploads/1/3/0/9/130969809/3b1e15ee4da726.pdf
    • http://agelessbeautybyellie.com/uploads/1/3/0/9/130969402/kuzilisu_buvajovelajutun_bubimedekiz_tusesejowozivog.pdf
    • http://analyticsplayground.org/uploads/1/3/0/4/130488924/bibusipipowoluj.pdf
    • http://alithishealth.com/uploads/1/3/1/8/131856708/4063987.pdf
    • http://beorganic.bio/uploads/1/3/1/4/131452806/ramugaxonotoka-gisejefujixiw.pdf
    • http://artfullofjoy.com/uploads/1/3/1/3/131380183/lebajerosuwetabetoli.pdf
    • http://edwardsautomotivemillingandi.com/uploads/1/3/0/8/130873945/2165738.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_off00006007.bin
8e393554da2e4806455b6180c043441ce8b0179f10ffbe07fc4f012bdc527259		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6007 5032 bytes
font_01_sfnt_off00007122.bin
1bcd23a0ad7eb3f6d470b05f20c3ee2dd2f6de1f84d6b27c3f156008d6199ee0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7122 10288 bytes

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