Malicious PDF — malware analysis report

Static analysis result for SHA-256 e82bd67d1b601e7d…

MALICIOUS

PDF

44.7 KB Created: 2020-04-07 10:48:28 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: bcf93ee874c6473f80de476d09962153 SHA-1: 46c9e0a728943e31eba35e8e826066e1481e2899 SHA-256: e82bd67d1b601e7dd1a1270831aed1a17945d6b5af5ad4c9d6b70aab5f435c19
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a high likelihood of malicious intent. The embedded URLs point to various domains, suggesting a distributed infrastructure for hosting potentially harmful content.

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://30acoolerrentals.com/uploads/1/3/0/2/130271085/130271085.html#fight+club+lou+basement+scene
    • http://tipsytourssf.com/uploads/1/3/0/4/130476068/9083503.pdf
    • http://woman-upnow.com/uploads/1/3/0/5/130544352/poseg-ratazanezo-jepodiw.pdf
    • http://dofnelsonfaithfomation.com/uploads/1/3/0/7/130775865/sajawejuxezu_xakejan.pdf
    • http://dredwardpaulmd.com/uploads/1/3/0/3/130313265/babev_siwur_rodevetesu.pdf
    • http://cowboychristmasapp.com/uploads/1/3/1/4/131437668/lorifekosep_guxuximevuw.pdf
    • http://simonecameronportfolio.com/uploads/1/3/0/8/130814121/batiwasodokazewe.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_off0000861a.bin
7030d97a4b2c18c9f7a0d320c85d78ca0343e2e6ffb8c7f53eb6494d1b7a59d8
pdf-font-stream PDF embedded font (sfnt) at offset 0x861A 8156 bytes