Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dfbbf3d228011a1…

MALICIOUS

PDF

47.2 KB Authoring application: pstoedit
MD5: 71403fea9e6f2a2d24c5c86d7af66f2c SHA-1: 3f72cb6a6e96d1d7391928dc2a2011c37687bd13 SHA-256: 0dfbbf3d228011a15ed436f866324bfef78d20d33c998b4bc3cf331a24292f66
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, forming a link farm, which is a common technique for SEO poisoning or distributing malicious content. The ClamAV detection and ML classifier strongly indicate maliciousness. The document body, though partially corrupted, references 'Top acting schools hollywood reporter' and includes URLs that are likely part of a malicious redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://kidsanimalsplants.com/uploads/1/3/0/5/130550960/1583680.pdf
    • http://nocoboatcharters.com/uploads/1/3/0/4/130483474/pevusugekil_gudovoj_wogojefobisam_siwunemikebatin.pdf
    • http://bronwynb.co/uploads/1/3/0/6/130639883/3787267.pdf
    • http://mirandacraig.co/uploads/1/3/0/6/130620752/nowafuf-boref-japivulala.pdf
    • http://cecilyeiferle.com/uploads/1/3/0/7/130739720/130739720.html#top+acting+schools+hollywood+reporter

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000105c.bin
4ca4b2f1eb5e4205a39d2895c1db139c4b5fc4271c4d7ae93aabbaf2d509540d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x105C 8180 bytes

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