Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d849e3af2986e99…

MALICIOUS

PDF

42.1 KB Authoring application: Serif PagePlus
MD5: 297594d1aa9f64af9e5366cbc816b2c4 SHA-1: acab3c6b7144c8f9180579857c757a04a59376d4 SHA-256: 2d849e3af2986e9979bcf7e2dec2880fed64a808ce5c1d0ff39c66c5e817cf99
130 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a link farm, with multiple URLs pointing to other PDF files, suggesting a phishing or SEO poisoning campaign. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing intent. The document body, though heavily obfuscated, contains references to 'Amino apk old version' and URLs that appear to be lures for downloading applications, which is consistent with a malicious download workflow.

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://dippedarmor.com/uploads/1/3/0/5/130588515/160a4dda5cddf.pdf
    • http://s4cm.com/uploads/1/3/0/6/130604028/samepebozexudewobi.pdf
    • http://maisonmobilemoveisplanejados.com/uploads/1/3/0/2/130288532/tebevitezamesijom.pdf
    • http://kreativekidsworld.com/uploads/1/3/0/5/130540211/130540211.html#amino+apk+old+version

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010ba.bin
1e5c3e302151a31902e2f060226113c6ae09395e1974bc3582fe4c90ede9de20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10BA 10808 bytes

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