Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a7fec250e27cc4b…

MALICIOUS

PDF

35.7 KB Authoring application: Pdftk
MD5: 37b3f945fb0032cc4c3e8413a8838171 SHA-1: b805d9a2b612cd145f33f407da32897e1e7e3035 SHA-256: 6a7fec250e27cc4b43f4bfbf95be0b869c43fab55066840480dbd555b044c9f4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a mass external link farm, with multiple URLs pointing to PDF files, indicating a phishing or malware distribution attempt. The heuristic 'SE_DOWNLOAD_BUTTON' suggests a visual call-to-action, further supporting a lure-based attack. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' directly classifies the file as malicious phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://550kirklandway.com/uploads/1/3/0/2/130289649/xokexibidotidawan.pdf
    • http://nickandsam.net/uploads/1/3/0/6/130621568/ximavubojawazo.pdf
    • http://preservelegalsolutions.com/uploads/1/3/0/6/130604477/8ddfc.pdf
    • http://stagingserver5.com/uploads/1/3/0/4/130479472/mudupimofo-xoluguvulep.pdf
    • http://afrocubanforum.org/uploads/1/3/0/4/130489230/kujuguwo_netujupu_rododorejafo_xebusuwebok.pdf
    • http://besthawaiilandscaping.com/uploads/1/3/0/4/130476491/88455057b.pdf
    • http://pameladirnberger.com/uploads/1/3/0/7/130739478/130739478.html#wizards+unite+apk+2.+4

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000110d.bin
d2e4c193b42e7ffa11fe14dd3e20efa025a844f4f484ad31d99c98e0f620c179		 pdf-font-stream PDF embedded font (sfnt) at offset 0x110D 8208 bytes

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