Malicious PDF — malware analysis report

Static analysis result for SHA-256 8955b98fd726e8b9…

MALICIOUS

PDF

72.9 KB Created: 2020-04-02 08:38:35 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5424516e3f057a3f5e90d795032d71eb SHA-1: aa87063a45a3c8af9884c0d7c090b23d7f1581e0 SHA-256: 8955b98fd726e8b951fb31a286f517db185b532c0ac5b41b6a2c2b3afd93fdd9
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or distribution network. The primary purpose appears to be SEO manipulation or the distribution of further malicious content through these linked PDFs. No scripts were extracted, limiting deeper analysis of execution behavior.

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://bytecubed.io/uploads/1/3/0/9/130969566/130969566.html#espantos+de+agosto+personaje+principal
    • http://evo-hemp.com/uploads/1/3/0/3/130324011/fesofusun.pdf
    • http://litbandit.com/uploads/1/3/0/4/130483625/dc6795c5.pdf
    • http://ajshealthandbeauty.com/uploads/1/3/0/4/130436519/7c1740.pdf
    • http://svkmngroup.net/uploads/1/3/0/6/130621359/lazeruwa.pdf
    • http://www.reunioncityfilms.com/uploads/1/3/0/5/130546036/ac236b8.pdf
    • http://envyucollection.com/uploads/1/3/0/4/130477048/milaladase.pdf
    • http://ivneglobalservices.org/uploads/1/3/1/1/131164250/lemewaxaw.pdf
    • http://kanon.photos/uploads/1/3/1/4/131438442/xanutajixuxaseponok.pdf
    • http://maslinda.gr/uploads/1/3/0/2/130271080/6e14ade.pdf
    • http://pittsborofamilytherapy.com/uploads/1/3/1/1/131163856/famadikisupu-vunerotibep.pdf
    • http://amelieferris.com/uploads/1/3/0/7/130738831/7e201a6f68b46c.pdf
    • http://cocktailsexpress.com/uploads/1/3/1/0/131071145/f2c76200cae.pdf
    • http://miniturecowboysrus.com/uploads/1/3/0/6/130620572/sipimu.pdf
    • http://ianwrightmedia.com/uploads/1/3/0/5/130540021/4726168.pdf
    • http://c2nutritionandfitness.com/uploads/1/3/0/5/130540609/e2162f51468.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d179.bin
eb8cf970f7fbc00a6c6a3e60a1f2416a280371eb4fe4c509803b0d51b5f2ff70
pdf-font-stream PDF embedded font (sfnt) at offset 0xD179 1888 bytes
font_01_sfnt_off0000da1c.bin
acaea5980dc18fbec2c1342c333f2f0311b56b390afcf76d0a0a0a851f9842e7
pdf-font-stream PDF embedded font (sfnt) at offset 0xDA1C 10364 bytes
font_02_sfnt_off0000fe66.bin
55bcb46a4743dbccd7b6324f3dabf11f2e9efef3c21b656ed0296f7b17b3e197
pdf-font-stream PDF embedded font (sfnt) at offset 0xFE66 16064 bytes