Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae4c87ba9ab31f44…

MALICIOUS

PDF

29.5 KB Created: 2020-04-13 15:48:09 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a8ae833ac034d44275beb0df72e149b4 SHA-1: 92f9eff16d0b4c64a634f84bb9064cadf0ed6f4e SHA-256: ae4c87ba9ab31f447562294b5c75ce2919dd29822d6b3a8d0d1dbafafd8b7b70
92 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of a link farm, embedding a large number of external URLs. The primary intent appears to be directing users to these external sites, which are likely used for SEO manipulation or to host further malicious content. The ML classifier strongly indicated maliciousness, supporting this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://wellwithacupuncture.com/uploads/1/3/0/2/130288798/130288798.html#killing+floor+2+coop+split+screen+pc
    • http://xn--12c5bcia3j5bvb8i.com/uploads/1/3/0/2/130288864/5424996.pdf
    • http://voicity.net/uploads/1/3/0/2/130271212/basivazuxa.pdf
    • http://chaicultureyql.com/uploads/1/3/0/9/130969507/8259329.pdf
    • http://myccboutique.com/uploads/1/3/0/8/130813799/kowigetotit_favavupomadu_dejoviwim_vododifipekifuz.pdf
    • http://cmajor7music.com/uploads/1/3/0/5/130588492/cbcc8.pdf
    • http://familywellnessguru.com/uploads/1/3/0/4/130435629/jexelilejufavom.pdf
    • http://a-beautiful-mind.org/uploads/1/3/0/6/130621228/9232006.pdf
    • http://omnispa.net/uploads/1/3/0/9/130969278/e09495c9ffd48.pdf
    • http://shopsexxyness.com/uploads/1/3/1/0/131070925/9304049.pdf
    • http://livinglifeclean.net/uploads/1/3/0/5/130550898/wupox.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_off00004d77.bin
32020ad3872b6af9a48f5cd42b105c1dffd3f7acc17fa5b55390d328f300326f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D77 7176 bytes

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