Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1c0e456fbcac013…

MALICIOUS

PDF

42.8 KB Authoring application: PDFBox
MD5: 57262b065de0ab5b07c7726e09b55fce SHA-1: d386d5665464bf61a6b5b64fb76d063889f00f14 SHA-256: f1c0e456fbcac0135b93aa009d78a099e53cca71854edb0e1b5aca8f67679157
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files hosted on various domains, a technique often used for SEO poisoning or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious traffic redirection intent. No scripts were extracted from this sample, but the embedded URL structure is highly indicative of a malicious link farm designed to redirect users to harmful content.

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://adjustingspecialists.com/uploads/1/3/0/6/130621785/wexoxituwubupi.pdf
    • http://iterodental.com/uploads/1/3/0/6/130605325/911051.pdf
    • http://vedarukiz.cosmixmovies.com/uploads/2020/01/28/xogebes-poredetos-fexuviwitab.pdf
    • http://masterofthedomains.com/uploads/1/3/0/7/130739982/3e4ec3324.pdf
    • http://kingdomleadership.net/uploads/1/3/0/6/130621521/kewenabile.pdf
    • http://mindfulheartprograms.com/uploads/1/3/0/5/130541327/fb51a86.pdf
    • http://hello-baby-toys.com/uploads/1/3/0/7/130775346/130775346.html#ambientalismo+definicion+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001369.bin
a6b0ee21dfc6c591bd765615aea401327ef6fe856a8591ef3e30fc1fc7943ac0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1369 10116 bytes

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