Malicious PDF — malware analysis report

Static analysis result for SHA-256 17dcd03a3bc89092…

MALICIOUS

PDF

44.5 KB Authoring application: PDFBox
MD5: 25c307bd86f420671022d46272a093c2 SHA-1: a9cc6f0f8f4dfca221c4f1cc08d5e38af72dbacd SHA-256: 17dcd03a3bc8909219ffa4d438c5b5527d98ae5a24d2af9f591404927981962a
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to host malicious content. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall, suggesting a phishing or traffic-generating intent. While no scripts were directly extracted, the nature of the embedded links suggests a potential for further malicious activity or redirection.

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://noblegoldens.com/uploads/1/3/0/5/130551391/rukatutaranopap.pdf
    • http://migromarine.com/uploads/1/3/0/4/130478704/8945679.pdf
    • http://lifebyarchitecture.net/uploads/1/3/0/5/130589000/2352569.pdf
    • http://nationalrpoclinic.com/uploads/1/3/0/5/130590410/vavenaraneko-jipepaledexidav-bawulixim.pdf
    • http://kidsphilharmonic.com/uploads/1/3/0/3/130379172/tuzaxubevowo.pdf
    • http://sgdpress.com/uploads/1/3/0/5/130550783/kuxupexol.pdf
    • http://danielshanethomas.com/uploads/1/3/0/6/130639082/426578.pdf
    • http://e2bioconsults.com/uploads/1/3/0/5/130550783/9856299.pdf
    • http://societeimperiale.com/uploads/1/3/0/6/130639380/15c5a70.pdf
    • http://smart4edu.org/uploads/1/3/0/4/130476143/rijada.pdf
    • http://mynaturalhairspa.com/uploads/1/3/0/3/130323341/130323341.html#ecuaciones+lineales+con+dos+variable
    • 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_off000012a4.bin
3208d1231860998c455e97014abba64900c2f77829901359d803d3b148c12232		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A4 9332 bytes
font_01_sfnt_off00006785.bin
65ca2fa633a49bc637c245e3469a24bec82cbb291b9200d770c42ee2df1588ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6785 16096 bytes

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