Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3b7fa24f48ecb03…

MALICIOUS

PDF

37.1 KB Authoring application: PDFBox
MD5: 47ca11b39c071f8634d1c71e6b3d0b20 SHA-1: c5aa70965e575393d88d078b9e8dec96fe7f86b7 SHA-256: d3b7fa24f48ecb03d22b00943974785bcf9afe35a1a5dac9b0da08352a9b8c29
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm or a phishing lure designed to redirect users to potentially malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification. No scripts were extracted from this sample, limiting the analysis of direct execution capabilities.

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://atlanticcity-bachelorparty.com/uploads/1/3/0/2/130291649/351bc54fbc9.pdf
    • http://northstargateway.com/uploads/1/3/0/5/130542734/cb03f4cc.pdf
    • http://bluefinmiddletonma.com/uploads/1/3/0/4/130435876/534941.pdf
    • http://noycenortheast.org/uploads/1/3/0/4/130483443/33c386874.pdf
    • http://stephenwilland.com/uploads/1/3/0/5/130550858/1577b.pdf
    • http://dexisibami.jila12.ru/uploads/2020/01/29/tozebogamufi.pdf
    • http://juliejesternewman.com/uploads/1/3/0/6/130622111/130622111.html#hard+cover+file+label+template

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001100.bin
6931dc3f8b021e1d9fd82ec7e910e0f94581d7cfd894a7841da4cb84161eae46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1100 8480 bytes

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