Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2b98c9d9b24079f…

MALICIOUS

PDF

36.0 KB Created: 2020-06-04 22:02:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c32881d94f832eb2d77bc462dff2bfb SHA-1: f9a500f4ae73f5ad867df1687bface6a352dfbcd SHA-256: e2b98c9d9b24079f1d33e84438de12d8b0fd8b605e2ae071dda919b118018939
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of external links, many of which point to PDF files on various domains, indicative of a link farm. The document body text and embedded URLs suggest a lure for downloading WinRAR and potentially other software, which is a common tactic for distributing malware. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' further supports the idea that the user is being directed to download a password-protected archive, likely to bypass security scanning.

Heuristics 4

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://yougetwhatisee.com/uploads/1/3/1/4/131408913/131408913.html#winrar+64+bit+windows+10+free
    • http://woodbrothers-creations.com/uploads/1/3/1/3/131384567/5880579.pdf
    • http://sunpointhomecaresolutions.org/uploads/1/3/0/2/130272930/kafularuku.pdf
    • http://kanon.photos/uploads/1/3/1/8/131856769/xogamisoxejav.pdf
    • http://candybuffettables.com/uploads/1/3/1/8/131872269/8127984.pdf
    • http://ttnetmail1.tourtrax.com/uploads/1/3/0/4/130488241/jokewudatut.pdf
    • http://melindaarvin.com/uploads/1/3/0/6/130621011/jasuz.pdf
    • http://southerncaliforniamedispa.com/uploads/1/3/0/6/130621376/3698975.pdf
    • http://lagrancarpaatayde.com/uploads/1/3/1/8/131856065/domin_kiruz.pdf
    • http://yougetwhatisee.com/uploads/1/3/1/4/131408913/terms.html
    • http://yougetwhatisee.com/uploads/1/3/1/4/131408913/dmca.html
    • http://yougetwhatisee.com/uploads/1/3/1/4/131408913/policy.html
    • https://doledanemuku871212074.files.wordpress.com/2020/06/xopuweluziwumagejugufubo.pdf
    • https://savoxug.files.wordpress.com/2020/06/99797944135.pdf
    • https://fepoveniriv.files.wordpress.com/2020/06/34266028012.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_off00005f72.bin
9713fb0b7300ee254a8e553294becc5e364f21496a72dd0424169e491553b121		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F72 10880 bytes

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