Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ee017819b5b6d6b…

MALICIOUS

PDF

41.6 KB Authoring application: Nitro PDF
MD5: a0eda567591dc49d3aec6c835a06373f SHA-1: ac09e8e1bbda7d9f43b3b8042c48769e605796b2 SHA-256: 5ee017819b5b6d6bf97eaa2262543bc63bcecf7be2eddec1e7e1d0f7ff312ad7
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or content distribution attack.

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://jilliananderic.com/uploads/1/3/0/3/130379912/xijasubuxabona_lelixazirumek_powugiseja_pamexafilupujej.pdf
    • http://discoveryelectricbikes.com/uploads/1/3/0/7/130739652/wugavafep-sopesekosatofi-vejodesa-samevuz.pdf
    • http://passerprojects.com/uploads/1/3/0/3/130323424/domakewinifegig.pdf
    • http://venns.net/uploads/1/3/0/5/130589002/c46bbb2ee6.pdf
    • http://www.premagro.com/uploads/1/3/0/4/130436122/a141dac6807.pdf
    • http://sevencedarsdesign.com/uploads/1/3/0/6/130639808/48cf1.pdf
    • http://celebratinggodscreation.org/uploads/1/3/0/3/130323479/09dd19128d.pdf
    • http://cyofficialpage.com/uploads/1/3/0/4/130489230/6454b2c9.pdf
    • http://christopherwilsonphotographs.com/uploads/1/3/0/5/130543538/mibabukipesexe.pdf
    • http://rockkicker.com/uploads/1/3/0/6/130604422/5e28484.pdf
    • http://www.bellummake.com/uploads/1/3/0/6/130621503/2967487.pdf
    • http://newleadershipnetwork.net/uploads/1/3/0/4/130478360/6671434.pdf
    • http://desatascoshospitalet.net/uploads/1/3/0/7/130739213/9286777.pdf
    • http://everydaycamo.net/uploads/1/3/0/6/130639849/1223247.pdf
    • http://steel-line.net.au/uploads/1/3/0/5/130589449/3e043ea.pdf
    • http://hot100project.com/uploads/1/3/0/7/130738779/da95c500.pdf
    • http://campkinky.club/uploads/1/3/0/3/130323311/mejejomikukep_pasesufisojug.pdf
    • http://tomeyknives.com/uploads/1/3/0/8/130814070/769310.pdf
    • http://sigmagen.com/uploads/1/3/0/6/130604497/doxefiparesuremev.pdf
    • http://missiontofarm.com/uploads/1/3/0/4/130436343/rezof.pdf
    • http://newbritainlimecement.net/uploads/1/3/0/5/130588213/mugiritemapulo-mugiketuwosebi.pdf
    • http://economicstitan.com/uploads/1/3/0/5/130588588/xumazozomelulo.pdf
    • http://www.healthymomninjawarrior.com/uploads/1/3/0/6/130639277/b260bb06.pdf
    • http://focusantiglare.com/uploads/1/3/0/6/130605077/ef9e5021af2.pdf
    • http://bssdnp.salon225.com/uploads/1/3/0/3/130313000/130313000.html#uscis+forms+i+864

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003e6e.bin
b97a9dee3deb71cf0617f70aa441d4da0450675a6cc0bd3635fbbb6abf33aedc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3E6E 8420 bytes

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