Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8ddad9c602cf444…

MALICIOUS

PDF

41.8 KB Authoring application: pdf-parser
MD5: 82e3d401ce7ce497d82af3d3968fed29 SHA-1: b687ecd90b3bba70049fe0820c7be32107f8112f SHA-256: b8ddad9c602cf44472a29b90cfb3736d82cb999e32910c947cc194434f2027e7
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a phishing lure, as indicated by the 'PDF_SEO_LINK_FARM' heuristic firing. This heuristic detected a mass of external links within the document, pointing to various domains. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious classification. The embedded URLs are likely used to redirect users to malicious sites, potentially for credential harvesting or malware delivery.

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://motherhoodmomentstowineabout.com/uploads/1/3/0/6/130605269/guzivonig_menaw_viwagajenoj.pdf
    • http://ssphotography.net/uploads/1/3/0/5/130542977/702460.pdf
    • http://alexanderbridgeforth.com/uploads/1/3/0/2/130270956/fiviluniguxew-tonis.pdf
    • http://netballinthecommunity.co.uk/uploads/1/3/0/6/130621337/dokonolafixe.pdf
    • http://gup.detali.trade/uploads/2020/01/28/nuwozovawanoj-fokabi.pdf
    • http://moviestvsports.com/uploads/1/3/0/4/130435762/zuzorodokakekate.pdf
    • http://sharedtravel.voyagerwebsites.com/uploads/1/3/0/5/130550681/130550681.html#40th+wedding+anniversary+invitations+templates

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011cc.bin
5e04b50bfc0595ac15ae18073b48c0be4d4bc479ab612c880d94bb87682e80a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11CC 9192 bytes

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