Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6f955ea3decacfc…

MALICIOUS

PDF

40.3 KB Authoring application: GIMP
MD5: f78bcd24bff90e5fa8fafcc2cb443449 SHA-1: bc9cc66503981ffecb1f52623cb45bd66baa78c4 SHA-256: d6f955ea3decacfc6cdefbc09849cd51c8ca3bcd9f60002a1f80ac647d5b03c6
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute malicious payloads. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. No scripts were extracted, but the primary attack pattern involves directing users to a network of suspicious URLs.

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://ourlaredo.com/uploads/1/3/0/3/130323187/tugome_pukosegixuxilab_fuguwirugela.pdf
    • http://hostmaster.thesalonportals.com/uploads/1/3/0/5/130590373/acf55d28510e8c.pdf
    • http://thedrongos.com/uploads/1/3/0/2/130291523/bfe80b0.pdf
    • http://smalldoghousecalls.com/uploads/1/3/0/6/130621321/bimeratidaxumir.pdf
    • http://emotracing.com/uploads/1/3/0/7/130775431/gekiv_fufozuxewide.pdf
    • http://www.giftfromworld.com/uploads/1/3/0/4/130490681/dolotazipe.pdf
    • http://www.ezekielzswinford.com/uploads/1/3/0/5/130550891/7224217.pdf
    • http://rollinghillsmobileterrace.com/uploads/1/3/0/4/130476069/8721057.pdf
    • http://globalkhansulting.com/uploads/1/3/0/8/130813369/6660082.pdf
    • http://agroecologyinternational.org/uploads/1/3/0/7/130775087/c1ae4.pdf
    • http://www.frontrowfactory.com/uploads/1/3/0/5/130540063/fee2c865a.pdf
    • http://www.travel-with-eli.blog/uploads/1/3/0/2/130289304/mulejibijuxipogomeda.pdf
    • http://powersptc.com/uploads/1/3/0/5/130542972/foted-jujokigalo-wafinu-xakuru.pdf
    • http://www.the-indie-author-method.com/uploads/1/3/0/6/130621075/dogizitewabukuz-lokunetaveg-foxabaneb-nogodora.pdf
    • http://h6vmg1.bdgct.com/uploads/1/3/0/8/130813635/130813635.html#deep+vein+thrombosis+management+protocol
    • http://thedrongos.com/uploads/1/3/0/2/1302

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004430.bin
338b4b5cfc692c824bec3ff4a5a3b98d512811e7082362811f30fda8d9142e01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4430 7744 bytes

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