Malicious PDF — malware analysis report

Static analysis result for SHA-256 5334a410e003b0e5…

MALICIOUS

PDF

41.1 KB Authoring application: Soda PDF
MD5: affd348c79909fa0979cca6c0b7a579f SHA-1: 02781226812d90a2b92717bef6d6c6f88f581538 SHA-256: 5334a410e003b0e5d1542160951a96c9cb5b82c58ddd32141dc84764d6de141d
150 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 other PDF files hosted on various domains. This technique, identified by the PDF_SEO_LINK_FARM heuristic, is commonly used to create link farms for SEO manipulation or to redirect users to malicious content. The ClamAV detection and ML classifier further support its malicious nature, indicating it is likely a phishing or redirection lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://campmarymount.org/uploads/1/3/0/4/130478110/6488574.pdf
    • http://prophecyoutlook.com/uploads/1/3/0/5/130542780/3d40ba434275c92.pdf
    • http://publicationorganizer.com/uploads/1/3/0/6/130621846/xixubakidegapagim.pdf
    • http://tracedebug.com/uploads/1/3/0/6/130604286/zosiwobebolaw.pdf
    • http://greensburgcyclery.com/uploads/1/3/0/8/130874641/guvoputom-vaboxug.pdf
    • http://nclandandhome.net/uploads/1/3/0/3/130313370/guboze_peridabipux_robiluxumazovom_xegovifogifu.pdf
    • http://backshops.host/uploads/1/3/0/8/130815014/8391ec81c3ad5c.pdf
    • http://drbernous.com/uploads/1/3/0/4/130435695/842e2aadd8695.pdf
    • http://lucernervpark.com/uploads/1/3/0/5/130540214/39a3a29.pdf
    • http://alliesonthejourney.com/uploads/1/3/0/7/130740538/ruzaxopew.pdf
    • http://inmemoryofbas.com/uploads/1/3/0/4/130483489/3920231.pdf
    • http://acesoccer.shop/uploads/1/3/0/7/130739117/3172179.pdf
    • http://ryetarded.com/uploads/1/3/0/5/130551898/3356966.pdf
    • http://rochecenter.org/uploads/1/3/0/3/130379391/130379391.html#agreement+termination+letter+sample+free

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a1e.bin
c421d4f2691f6334760751ef86cd550398adb5b4074ee44e64a8f982ae90c3a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A1E 7328 bytes

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