Malicious PDF — malware analysis report

Static analysis result for SHA-256 e971be7c1487ea80…

MALICIOUS

PDF

49.9 KB Created: 2020-03-27 07:48:24 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c34246fab0add1aa5d4bfd7e0e6a3184 SHA-1: b649bca8b645428590efc3a0a8bcec7d6798b8cd SHA-256: e971be7c1487ea806d2dd81837e77df25e8a22ed7f0076b22eb9cf5566f3f6ef
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though partially corrupted, contains text related to 'Ejercicios de estimulacion temprana para bebes de 6 meses' and includes URLs that are likely part of a link farm designed to attract traffic. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://caesarsnewyork.com/uploads/1/3/0/5/130539706/130539706.html#ejercicios+de+estimulacion+temprana+para+bebes+de+6+meses
    • http://miller-ssg.com/uploads/1/3/0/7/130776508/tagorujilanevibabinu.pdf
    • http://www.empurequeen.com/uploads/1/3/0/4/130435851/6915675.pdf
    • http://alpinegrind.ca/uploads/1/3/0/3/130313063/mamezenabipeseti.pdf
    • http://communityequipment.org/uploads/1/3/0/2/130271113/3332746.pdf
    • http://www.cobbchaptertwo.com/uploads/1/3/0/7/130775284/ae8ba3682.pdf
    • http://www.recrowshop.com/uploads/1/3/0/7/130740442/b38b7a4c41.pdf
    • http://hostmaster.scp-program.com/uploads/1/3/0/7/130739376/74dccf5f.pdf
    • http://cleaningstgeorge.com/uploads/1/3/0/4/130483153/e02d5c989ec1ed.pdf
    • http://nutrients.supply/uploads/1/3/0/3/130379928/3d7e896af.pdf
    • http://myunique.me/uploads/1/3/0/4/130476130/jaxug_fosesojuva_gowawawuwomim_zukatebadu.pdf
    • http://momentumbase.com/uploads/1/3/0/5/130551256/fititinasanoxa-zefobe-puzukokil-manomedad.pdf
    • http://entertainersaz.com/uploads/1/3/0/7/130740568/3780646.pdf
    • http://globaldiscountstores.com/uploads/1/3/0/3/130313132/9114440.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_off00008369.bin
d5dfac6e6ebeb4610e95ae2ed4910491cce9081c17b0446d3a8b3ee143d0d4b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8369 8764 bytes
font_01_sfnt_off0000a366.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA366 16036 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.