Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e2f4c5024c5845d…

MALICIOUS

PDF

49.1 KB Authoring application: Adobe PDF Library 9.0
MD5: c740cd1a64f3abbba8dfa2a4adc159c9 SHA-1: facfb2bf8524867afcc7b9ae9f2037fa486c5bb9 SHA-256: 9e2f4c5024c5845d6d81a03751cca66528da0df82918a05c53e2a3d66467e620
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 external PDF documents. The heuristic 'PDF_SEO_LINK_FARM' indicates this is a link farm, and ClamAV detected it as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The embedded URLs are likely used to redirect users to malicious content or phishing pages. No scripts were extracted from this sample.

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://buttermilkpink.com/uploads/1/3/0/4/130476062/7ae947e6.pdf
    • http://biznesiyt.info/uploads/1/3/0/2/130291485/5463453.pdf
    • http://hostmaster.okanagancarloans.com/uploads/1/3/0/7/130739063/puwivotefupibi.pdf
    • http://fruitymessagebroker.net/uploads/1/3/0/2/130288567/puxaj-mevudofajizumuj.pdf
    • http://pandago.com/uploads/1/3/0/5/130588427/pitokalanilojid.pdf
    • http://mvbabysitting.com/uploads/1/3/0/7/130739713/xasonik-notatar-mikoginelopozab.pdf
    • http://surefoundationfellowship.org/uploads/1/3/0/6/130639147/1558500.pdf
    • http://altamayastudios.com/uploads/1/3/0/4/130436173/fogofumikemu_kulubukizivumik_jexesim_tawowisa.pdf
    • http://mindhealthconnection.org/uploads/1/3/0/6/130604098/5437113.pdf
    • http://eireneathens.com/uploads/1/3/0/3/130379237/9964307.pdf
    • http://lifetrackfinancialadvisors.com/uploads/1/3/0/4/130435755/29765.pdf
    • http://www.shloofee.com/uploads/1/3/0/4/130489572/kebukimijasuza-japijozowus-linimopebi-sowilidatot.pdf
    • http://wessexscribes.com/uploads/1/3/0/5/130589309/c81ac.pdf
    • http://lexanimi.com/uploads/1/3/0/5/130540928/tunuwuwufuvopineji.pdf
    • http://readyden.com/uploads/1/3/0/7/130739346/ledajogejiwunol.pdf
    • http://www.youthtech.de/uploads/1/3/0/5/130547078/2581798.pdf
    • http://rmfavorito.com/uploads/1/3/0/5/130546977/wavijamaj.pdf
    • http://stefstephapparel.com/uploads/1/3/0/6/130621156/8231616.pdf
    • http://jehrv.slpny.com/uploads/1/3/0/2/130272577/caebbead5d284.pdf
    • http://grahamcycles.co.uk/uploads/1/3/0/5/130590314/sosulamofijapax.pdf
    • http://abcapoeira.net/uploads/1/3/0/7/130740242/muwogesodikil.pdf
    • http://hello-baby-toys.com/uploads/1/3/0/4/130489398/130489398.html#newcastle+disease+hemagglutination+inhibition+test

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fd7.bin
10ad6762bed8c101f741c70f35299845d40ecb51d3758986a8e9af231ffc2900		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD7 8264 bytes

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