Malicious PDF — malware analysis report

Static analysis result for SHA-256 45a65e02ae28c5e8…

MALICIOUS

PDF

39.3 KB Authoring application: Pdftk
MD5: fd9a0ddd8643c758f327541794d9bded SHA-1: b8bb8e242a7b4e97ea538a74cc13bc9e97549d21 SHA-256: 45a65e02ae28c5e8a34851e72717f791efe3234e94e58728347faca90f64a30f
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO poisoning or to redirect users to malicious sites. ClamAV identified this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or traffic redirection purpose. The ML classifier also strongly flagged this file as malicious. No scripts were extracted, but the sheer volume of outbound links suggests a coordinated effort to drive traffic to potentially compromised or malicious web 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://pro-hillclimbers.org/uploads/1/3/0/5/130540182/1438823.pdf
    • http://luxairecares.net/uploads/1/3/0/7/130775962/090bd.pdf
    • http://www.myukpensiontransfer.com.au/uploads/1/3/0/8/130874330/24dbd02a156ccd8.pdf
    • http://nancyrichy.com/uploads/1/3/0/6/130621503/5a7a9afafd9a0d.pdf
    • http://ctande.com/uploads/1/3/0/8/130814176/dabisawapepibum.pdf
    • http://scheibnerbautista.com/uploads/1/3/0/6/130603955/dobusoke-wumudil.pdf
    • http://metakinkpodcast.com/uploads/1/3/0/8/130813100/9f3f616f9cb68.pdf
    • http://inkbirdcomms.com/uploads/1/3/0/2/130291910/nozoluveteniperu.pdf
    • http://carolinapumpworks.com/uploads/1/3/0/2/130288317/gozokogejaret-ratexadozojo-topuzororiraji.pdf
    • http://hypofisis.com/uploads/1/3/0/5/130543169/sazibofuvo-zefuguwe.pdf
    • http://allisonroman.com/uploads/1/3/0/6/130621226/5472de99a16.pdf
    • http://morenikeshelton.com/uploads/1/3/0/8/130874586/2cf1f84bd.pdf
    • http://peteshotsauce.com/uploads/1/3/0/5/130538986/wonijejepozagokamu.pdf
    • http://dadgumoutdoors.com/uploads/1/3/0/6/130639689/pevesad.pdf
    • http://spatialperspectives.com/uploads/1/3/0/5/130542924/b38c285.pdf
    • http://mortgagelenderharry.com/uploads/1/3/0/6/130603936/zipepi_kaxinexi_foroxamiwag.pdf
    • http://www.mariakouznetsova.com/uploads/1/3/0/7/130775639/bijidemusomo-gabezixe-getife.pdf
    • http://memoriesforever.voyagerwebsites.com/uploads/1/3/0/3/130323585/130323585.html#how+to+develop+english+fluency+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003a53.bin
1158733d35ce284c37bc1f60bddb701ae49852734495b8dbb95a3224fa4d0810		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3A53 8776 bytes

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