Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f9c5c0777c9caea…

MALICIOUS

PDF

36.2 KB Authoring application: Inkscape
MD5: 2d12102e5d8f725c459696d530900823 SHA-1: 3e957d28df09f47dddaf548721a33e4a60b83cb2 SHA-256: 6f9c5c0777c9caea51842018694b6420ddfa31b91e8aa2333e7d7ebc80fa7591
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO spam or to distribute malicious content. ClamAV and ML classifiers also flagged this file as malicious, specifically identifying it as a phishing or malware distribution attempt. While no scripts were directly extracted, the PDF structure and embedded URLs suggest an intent to redirect the user to potentially harmful content.

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://sailewangyuleji.br3h.com/uploads/1/3/0/7/130738679/jixeve_pujinatolivad.pdf
    • http://emilyschider.com/uploads/1/3/0/3/130323957/gimigomewavugomomabi.pdf
    • http://cynthiasilvestri.com/uploads/1/3/0/5/130551144/wupazarirebi.pdf
    • http://happyvids.com/uploads/1/3/0/5/130588290/kexuzatexozeduxale.pdf
    • http://mta-sts.lanshelaw.com/uploads/1/3/0/6/130621656/tufuder.pdf
    • http://glacierbotanicals.com/uploads/1/3/0/6/130621771/e9b36bb058cd1.pdf
    • http://compareemergencyfood.com/uploads/1/3/0/2/130271060/kupedag.pdf
    • http://kitpsychiatriccenter.com/uploads/1/3/0/4/130436204/guvoduxujagodajo.pdf
    • http://gwenjacksonstories.net/uploads/1/3/0/8/130813478/wurolopuvaf.pdf
    • http://jeanettemurphy.net/uploads/1/3/0/6/130639298/a628573.pdf
    • http://airconditioningguam.com/uploads/1/3/0/2/130274166/fedabizula-kobuwusixot.pdf
    • http://mimigoesketo.com/uploads/1/3/0/3/130379429/5418234.pdf
    • http://greecejapan.net/uploads/1/3/0/7/130776166/sabegesewanaf-bomuz-xezaduwutat-bakotirida.pdf
    • http://diversityinarchitecture.org/uploads/1/3/0/7/130775698/disunorajideza.pdf
    • http://chewoncakes.com/uploads/1/3/0/6/130620334/130620334.html#ielts+reading+question+types+information+and+tips

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032e8.bin
305f8907ddf938b467a33a21b175ade33f956b388af2c88d53dc7bad5ceecdb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32E8 8160 bytes

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