Malicious PDF — malware analysis report

Static analysis result for SHA-256 59c963c8db8fc9d8…

MALICIOUS

PDF

129.2 KB Created: 2020-06-04 03:32:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b212acab84f168e8f319c2f65eff2251 SHA-1: ae4577a2c95628041aed6a9a90f52c3e4d8b5093 SHA-256: 59c963c8db8fc9d8117b8fcc18d2b923e69dc74d43076b683c6179e819a226ae
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document was flagged by a machine learning classifier as malicious and contains a large number of external links, indicative of a link farm or phishing lure. The primary attack pattern involves redirecting users to potentially malicious websites hosted on various domains. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://alltheplacestravel.voyagerwebsites.com/uploads/1/3/0/9/130969481/130969481.html#after+libro+2+pdf+espa%25C3%25B1ol+completo
    • http://tiffanymaryferguson.com/uploads/1/3/0/2/130273578/kewavune-kutonijawo-dunasodevinazuv-xepumobegiv.pdf
    • http://galvanizemarketing.com/uploads/1/3/1/3/131398453/1572966.pdf
    • http://sbpromogroup.com/uploads/1/3/0/6/130639123/7999271.pdf
    • http://globallytm.com/uploads/1/3/0/4/130483400/laragi_vajafomo_fumijuxa_vewugopatize.pdf
    • http://bundlesquad.com/uploads/1/3/0/6/130605421/7a52a4.pdf
    • http://misupport.email/uploads/1/3/0/2/130272332/zugodakuwepobofe.pdf
    • http://challengedhouses.com/uploads/1/3/0/8/130814459/xuvakir.pdf
    • http://hostmaster.gratefulfredsukeleardeterrent.co.uk/uploads/1/3/1/4/131437779/dd5cdec2.pdf
    • http://crystalspiritdesigns.com/uploads/1/3/0/4/130488875/puxokugi.pdf
    • http://alltheplacestravel.voyagerwebsites.com/uploads/1/3/0/9/130969481/terms.html
    • http://alltheplacestravel.voyagerwebsites.com/uploads/1/3/0/9/130969481/dmca.html
    • http://alltheplacestravel.voyagerwebsites.com/uploads/1/3/0/9/130969481/policy.html
    • https://jukavazak949774331.files.wordpress.com/2020/06/tuzulor.pdf
    • https://ziwemukivi.files.wordpress.com/2020/06/9351634389.pdf
    • https://xudoraseme.files.wordpress.com/2020/06/puxutijudulekogifazaduk.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_off0001ced3.bin
a4b59b4cade79180dac43851c8c5644156bc2c534d89ceffb4e1c932412b5e71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1CED3 12476 bytes

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