Malicious PDF — malware analysis report

Static analysis result for SHA-256 9271d639e8ee2bb8…

MALICIOUS

PDF

37.6 KB Authoring application: Mobipocket Creator
MD5: f51a3bef5efa5ce06e84f49eb278b2c8 SHA-1: 0c79f271f919a739a64d2b27c01ef6e958d71ca6 SHA-256: 9271d639e8ee2bb89d321ec583b4fde906a17bb3d4ce035e17d982c0984c74af
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The PDF_SEO_LINK_FARM heuristic identified a mass of external PDF links, with the primary one being http://www.imaniashante.com/uploads/1/3/0/2/130289700/bosufederalil-xuwuxenawizili-gazuniweb.pdf. This suggests the document is part of a link farm or phishing campaign designed to redirect users to potentially harmful content. 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://www.imaniashante.com/uploads/1/3/0/2/130289700/bosufederalil-xuwuxenawizili-gazuniweb.pdf
    • http://hgj.39.butterfly520.com/uploads/1/3/0/5/130551472/6495364.pdf
    • http://voreckapp.com/uploads/1/3/0/7/130740055/429496.pdf
    • http://plumtreefloraldesign.com/uploads/1/3/0/6/130639152/jesowonam.pdf
    • http://communityculturechildcare.com/uploads/1/3/0/6/130639552/giminavelilavijitik.pdf
    • http://bankownedhomesidaho.com/uploads/1/3/0/6/130603941/1ddccb4.pdf
    • http://stalktwit.com/uploads/1/3/0/5/130589194/lubadaxofetizini.pdf
    • http://hostmaster.croftsbarn.co.uk/uploads/1/3/0/8/130873921/904424.pdf
    • http://ditzy-dsweetsandtreats.com/uploads/1/3/0/7/130739185/keraju-gulezuz.pdf
    • http://www.foreverdreamflorida.com/uploads/1/3/0/9/130969954/xakiz-jawas-zidejesoxa-bapavuji.pdf
    • http://www.teresaorganics.com/uploads/1/3/0/5/130539408/8690308.pdf
    • http://nickclayton.sexy/uploads/1/3/0/5/130551656/4419114.pdf
    • http://shifnalbc.co.uk/uploads/1/3/0/6/130621727/nupatanenaredor.pdf
    • http://ultrawealthyinsurance.net/uploads/1/3/0/8/130874142/6782f2d641.pdf
    • http://www.exclusivelyads.com/uploads/1/3/0/6/130620737/220399.pdf
    • http://mtech-energy.com/uploads/1/3/0/3/130323493/daba15d8f44667b.pdf
    • http://cairnsclassictours.com/uploads/1/3/0/6/130639123/33e3e0ecd7ebadc.pdf
    • http://beaute2suit.com.au/uploads/1/3/0/5/130588451/sudepoxigi.pdf
    • http://advertisingarchives.net/uploads/1/3/0/6/130639152/8453470e185a.pdf
    • http://patricknemechek.com/uploads/1/3/0/6/130621484/1602103.pdf
    • http://newhomestelevision.com/uploads/1/3/0/8/130813985/8e570480df.pdf
    • http://www.tonytatatraining.com/uploads/1/3/0/6/130604126/gipavomelutofoji.pdf
    • http://yopcrealab.org/uploads/1/3/0/7/130738871/5cf67fc8.pdf
    • http://stanfordinnanaheim.devsite-1.com/uploads/1/3/0/6/130620687/130620687.html#difference+between+deforestation+and+reforestation+in+points

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fe6.bin
48b14380a0061490394cf27a7021b5aab7ec571ebb590dc87f78e584187ec059		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE6 7936 bytes

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