Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b11137054a2360a…

MALICIOUS

PDF

37.8 KB Authoring application: Adobe PDF Library 9.0
MD5: b00baab8873fdc45edec2381b774d004 SHA-1: a6da4240a0abca1bde9404da8a0921603bc38ba8 SHA-256: 3b11137054a2360ac809a2985de1692f3888a4866c7000361d0a3ab00f3a8bf3
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded external links, a technique often used for SEO poisoning or to redirect users to phishing or malware download sites. The ClamAV detection and ML classifier strongly indicate malicious intent. No scripts were extracted, but the heuristic 'PDF_SEO_LINK_FARM' and the numerous unknown-reputation URLs point to a delivery mechanism focused on link manipulation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://advanceadvocacyandsupport.com/uploads/1/3/0/2/130289460/43fa78e0.pdf
    • http://merbeinhistoricalsociety.com.au/uploads/1/3/0/7/130776724/pelekeke.pdf
    • http://jslbinvestments.com/uploads/1/3/0/4/130490681/jipal.pdf
    • http://8200doral.com/uploads/1/3/0/2/130289163/daminavejabufaz.pdf
    • http://richmondvideoservices.com/uploads/1/3/0/2/130288643/fekib_pevoraxuwob.pdf
    • http://partoencasamujeressabias.com/uploads/1/3/0/5/130590142/supotogojenufezun.pdf
    • http://myptresource.com/uploads/1/3/0/2/130274343/kabiku.pdf
    • http://wundrmediapro.com/uploads/1/3/0/2/130270914/pubiroku_tazoradisetomok_lisisosopomef.pdf
    • http://djsacademy.com/uploads/1/3/0/5/130588594/130588594.html#noun+verb+adverb+adjective+preposition+interjection

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011f6.bin
b8148641e914b781695ee9c2af8055ec781bb51e2894e2f35678fbaf0a672750		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F6 7912 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.