Malicious PDF — malware analysis report

Static analysis result for SHA-256 a384581ea1a8299e…

MALICIOUS

PDF

36.4 KB Created: 2020-06-20 00:27:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e7ec41c9ec55a1e2058931819fbe20b SHA-1: 8b2bbd1567d97e9de6e5c53245daf7efd7155c8a SHA-256: a384581ea1a8299ee63c4f2ff8df660c5e25bc73d9f5fc9f0c99e4e2c31fb328
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, many of which are hosted on unrelated domains and appear to be part of a link farm. The document body, though heavily obfuscated, contains references to 'Tv guide viasat 4' and includes URLs that are likely used to redirect users to malicious content. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates a malicious intent to distribute links.

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://vegatim.com/uploads/1/3/0/2/130287454/130287454.html#tv+guide+viasat+4
    • http://hostmaster.tierarztpraxis-koeln-langel.de/uploads/1/3/1/4/131437667/4685592.pdf
    • http://mail.showuplifestyle.com/uploads/1/3/0/6/130604248/3816995.pdf
    • http://crescentmoonwines.com/uploads/1/3/1/4/131409597/vudizalizebitavatema.pdf
    • http://allautomotive.org/uploads/1/3/0/4/130489446/2777a89f454fc32.pdf
    • http://ravellence.com/uploads/1/3/1/4/131453182/jitulu.pdf
    • http://hostmaster.bmregnskap.no/uploads/1/3/0/5/130588270/zolixo.pdf
    • http://ashish.footprint.in/uploads/1/3/0/8/130874039/geramukasi.pdf
    • http://rancemotorsports.com/uploads/1/3/0/6/130603725/fb981b17719b279.pdf
    • http://elearningbusinessanalysis.com/uploads/1/3/0/4/130483783/bfb14ea4.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_off00004ecb.bin
8f55bd976cecec9b9f9a49b2d63a3a104ecf177b1ac8e991a380c191b146f040		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4ECB 4628 bytes
font_01_sfnt_off00005e9f.bin
a5d52a8daffc63d905d5db0923a929a97f578d110ca12226d6d854c3c0cb5d98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E9F 11588 bytes

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