Malicious PDF — malware analysis report

Static analysis result for SHA-256 913cf7f3cfcae429…

MALICIOUS

PDF

35.3 KB Authoring application: Smallpdf Desktop
MD5: 5d357f6a081753b323be6b801a49d026 SHA-1: c14aa55313457edad8a481a1931e976f70536c8f SHA-256: 913cf7f3cfcae429aea16fff8904a2120d268b0c15b09a20c4a5dddc589ef054
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection indicates this is a known phishing or traffic-robot distribution. The embedded URLs are likely used to redirect users to malicious sites or to improve search engine rankings for malicious content. No scripts were extracted from this sample.

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://misscamille.fr/uploads/1/3/0/2/130288775/jofuv-lowuweraxakunu.pdf
    • http://ncespta.com/uploads/1/3/0/5/130550731/a165020796.pdf
    • http://michelamclaurin.com/uploads/1/3/0/6/130639691/gakewupupirora_xogefujanop_ribewele.pdf
    • http://faintingpixel.com/uploads/1/3/0/7/130739632/rokore-nevaniduk-wowixi.pdf
    • http://mycorporatecounselor.com/uploads/1/3/0/7/130776032/vukoj.pdf
    • http://firlesgaming.club/uploads/1/3/0/6/130620598/7333500.pdf
    • http://bearsversusbabies.net/uploads/1/3/0/6/130621533/wivulobogagaxu_bedomulotise.pdf
    • http://allaboutprayers.com/uploads/1/3/0/4/130436494/9972677.pdf
    • http://belleaircommunityfoundation.com/uploads/1/3/0/2/130272985/5c62e7e944.pdf
    • http://gbritsolutions.com/uploads/1/3/0/4/130483285/e9d8aad92.pdf
    • http://msthub.com/uploads/1/3/0/5/130551728/ec82c4334f35.pdf
    • http://www.goddessinme.co.uk/uploads/1/3/0/2/130289339/tugirisujitanikojuj.pdf
    • http://abckytejahutusventilatsioon.ee/uploads/1/3/0/7/130739002/130739002.html#mean+median+and+mode+in+statistics+pdf
    • http://gbritsolutions.com/uploads/1/3/0/4/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032dd.bin
cd957399667ea0e54348b0d6bed12cba7a64ad5624436981697ae68b10ab3fd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32DD 7524 bytes

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