Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd225e3bc244d596…

MALICIOUS

PDF

39.8 KB Authoring application: Karbon
MD5: 9f40f1f8eb7b91f0ed7aa14676ee8675 SHA-1: 2354434ca2b89d0d6308c6b58ee1771471e1d351 SHA-256: dd225e3bc244d5969b8c95e9eb941700faf1e8d7977d7967073f92d8f74e5495
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to other PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body, though heavily truncated and containing garbled text, mentions 'Beneficios del aceite de canola y contraindicaciones', suggesting a potential lure related to health or product information to mask the malicious link distribution.

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://thebradfordwatch.com/uploads/1/3/0/2/130289503/92c581e.pdf
    • http://lettergeek.com/uploads/1/3/0/6/130621022/4a4392f98a93b.pdf
    • http://happihearts.net/uploads/1/3/0/5/130551081/5908064.pdf
    • http://sapphirerisk.net/uploads/1/3/0/6/130604996/9478860.pdf
    • http://eiqmastery.org/uploads/1/3/0/8/130873826/dikawojejadinuk-jotofesosinuwoj-guwefukavatovow.pdf
    • http://ccbubblesboutique.com/uploads/1/3/0/5/130539249/xewasagaloziji-woravunima.pdf
    • http://bucketlisthacks.com/uploads/1/3/0/4/130488833/716ce1b24ad3179.pdf
    • http://mesheracapital.com/uploads/1/3/0/5/130539553/gidumefitotabix.pdf
    • http://ecoursebydesign.com/uploads/1/3/0/5/130540507/7824067.pdf
    • http://batteryparkschool.com/uploads/1/3/0/5/130589083/33a082227316.pdf
    • http://matthewbrooke.com/uploads/1/3/0/6/130604543/3736934.pdf
    • http://www.bringasgraniteinc.com/uploads/1/3/0/6/130604018/zigadijijo_pebinaxajumome.pdf
    • http://ftp.iprwyoming.org/uploads/1/3/0/2/130272638/9725452.pdf
    • http://msgfcsclasses.com/uploads/1/3/0/4/130436236/130436236.html#beneficios+del+aceite+de+canola+y+contraindicaciones
    • http://ccbubblesboutique

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000410d.bin
0ac8fcf52e30104fbc8213d0fbde31781cef4d81110691568de12c837e3b03c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x410D 9040 bytes

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