Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f004cf4524df46e…

MALICIOUS

PDF

37.3 KB Authoring application: Serif PagePlus
MD5: 2287040385cc07dcef8457efeef49411 SHA-1: 2e465c3d8397c0ee4623e9ce6183b77baca75912 SHA-256: 6f004cf4524df46e72494114d4a10aa96ffb8f3625d44f13cc6625ecd49bafe7
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, suggesting a link farm or phishing lure. The 'SE_CLIPBOARD_COMMAND_LURE' heuristic indicates the document instructs the user to copy and paste content into a shell, a common technique for executing malicious commands. The ClamAV detection and ML classifier further support its malicious nature, pointing towards a phishing or downloader campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://campingdeberghoeve.com/uploads/1/3/0/5/130539455/58bb84aaa3b.pdf
    • http://nichellejensen4orem.com/uploads/1/3/0/7/130775950/628cd0.pdf
    • http://zepoj.fisiodoctor.ru/uploads/2020/01/29/zapamakaredugejap.pdf
    • http://10xoceansolutions.com/uploads/1/3/0/2/130272649/3407873.pdf
    • http://varietycornerhangout.com/uploads/1/3/0/5/130590059/nitogorazovebunu.pdf
    • http://duojonssoncoudroy.com/uploads/1/3/0/4/130476605/joxuwa-molobatozosuke.pdf
    • http://beckataylor.com/uploads/1/3/0/4/130435641/5008416.pdf
    • http://nabajal.org/uploads/1/3/0/2/130272977/gexato.pdf
    • http://circular-canary.com/uploads/1/3/0/5/130590338/vareragewexo-lumakiguzovo-boboretasebes.pdf
    • http://pisec.org/uploads/1/3/0/5/130551072/4919704.pdf
    • http://meshayla.com/uploads/1/3/0/5/130542894/130542894.html#cyber+security+and+information+security+fundamentals

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000129e.bin
8f61f866f8abc6fd3c0c641ced06f5afb1887ae2ed5424eed132b62f30bb4561		 pdf-font-stream PDF embedded font (sfnt) at offset 0x129E 7996 bytes

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