Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e20b92a4a671fc3…

MALICIOUS

PDF

43.9 KB Authoring application: PDF Studio
MD5: e1ef65cdbe0373ebd682bf01860ee102 SHA-1: 7f431eff130346b960536fb4facc1f36e8935f11 SHA-256: 0e20b92a4a671fc38537684e55d0740b4031cf288b58c07c35f3618478333177
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The embedded URLs suggest a link farm or redirection scheme, likely intended to drive traffic or host malicious content. ClamAV detection and ML classification further support its malicious nature, classifying it as Pdf.Phishing.TtraffRobotInstall.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://saint-tims.com/uploads/1/3/0/6/130603937/06e1173.pdf
    • http://royal-honeys.com/uploads/1/3/0/6/130639906/01cd59f.pdf
    • http://mountainmodelaires.org/uploads/1/3/0/4/130483477/madasena_sefiforikidedu.pdf
    • http://motta-ddd.pl/uploads/1/3/0/5/130543569/tivevawobuxovifelifa.pdf
    • http://saturdayafternoonteaparty.com/uploads/1/3/0/2/130272428/kulajalivalopil-konovefegoduxe-kizotadotugefi-towaxosawuwido.pdf
    • http://mynaturalhairspa.com/uploads/1/3/0/3/130313093/130313093.html#lg+840g+operating+system
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010fd.bin
d55499fce3853572f2f1147ba25f1d714715d06295fbefb4941c55e9162c556f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10FD 8332 bytes
font_01_sfnt_off00006020.bin
062abeeb0630068c9ebda4cd69880ba7d22c023ef851e82e77d1a768bfa0705b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6020 17648 bytes

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