Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed949d77ba7069c1…

MALICIOUS

PDF

37.7 KB Created: 2020-06-17 23:46:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a38522c1ba95d5c48d1ef3a0db6b45a SHA-1: 7fabb06b52a683c8649b7cbf828affb04c56a831 SHA-256: ed949d77ba7069c101f536de757cf1e0d8f012c9401a952c9a886b0676b249b1
62 Risk Score

Malware Insights

MITRE ATT&CK
T1598 External Remote Services T1204 User Execution

The PDF file contains a large number of external links to various domains, many of which appear to be part of a link farm. The primary heuristic indicates a 'PDF_SEO_LINK_FARM' which suggests the document is designed to generate traffic or distribute content through a network of SEO-optimized PDFs. The embedded URLs point to these external PDF files, likely serving as a lure or a distribution mechanism for further malicious activity.

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://cpanel.annmartin.co.uk/uploads/1/3/0/6/130639852/130639852.html#tutorials+for+adobe+illustrator+cs3
    • http://jess1stylez.com/uploads/1/3/0/7/130775928/9371844.pdf
    • http://sacred-transition.com/uploads/1/3/0/6/130621345/5062422.pdf
    • http://hostmaster.cscalabriaservizi.it/uploads/1/3/0/6/130621741/4702987.pdf
    • http://batollii.com/uploads/1/3/0/2/130274166/4465750.pdf
    • http://mail.browbeginnings.com/uploads/1/3/0/8/130815381/mofekud.pdf
    • http://saltcreektransport.org/uploads/1/3/1/3/131384166/7732014.pdf
    • http://acneboss.com/uploads/1/3/0/2/130273740/31211f54efdf9.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_off0000572d.bin
5d855292c0c921e895539641f0200af461580e5475b082631a06d4b80300a72b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x572D 5044 bytes
font_01_sfnt_off0000685f.bin
4782ac982fb38b99f112f03d5d487eabfb7854c5673465d1a772cde02579e830		 pdf-font-stream PDF embedded font (sfnt) at offset 0x685F 10048 bytes

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