Malicious PDF — malware analysis report

Static analysis result for SHA-256 63e8f82f89835d7d…

MALICIOUS

PDF

42.6 KB Authoring application: Scribus
MD5: 9d21fae8c9deb27f2f59a5967d1aa901 SHA-1: 941574a008ca04c14586fee9e8d23fb78a1e32a1 SHA-256: 63e8f82f89835d7d2a2fe4cbd7e7922dc5741f4b18299163b421129e03ea7e78
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. This suggests the document's primary purpose is to redirect users to a network of other PDF files hosted on various domains. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier's high confidence further support a malicious intent, likely related to phishing or traffic generation.

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://www.essentialelementsdancestudio.shop/uploads/1/3/0/7/130776457/majejigekajej.pdf
    • http://nowthenfuture.com/uploads/1/3/0/7/130775615/1744660.pdf
    • http://propositionx.net/uploads/1/3/0/5/130550688/244851a53e.pdf
    • http://julietokeefe.com/uploads/1/3/0/5/130550970/1886946.pdf
    • http://mspistone.com/uploads/1/3/0/3/130313426/d60bc4a6c00.pdf
    • http://www.utv-doors.com/uploads/1/3/0/6/130604182/xapopupud.pdf
    • http://crystalmclainarts.com/uploads/1/3/0/6/130639822/xitexijo.pdf
    • http://cotic.com.hr/uploads/1/3/0/7/130738973/sejefimigoweja.pdf
    • http://seadooimpeller.com/uploads/1/3/0/2/130272295/3727330.pdf
    • http://patrickwaltersjr.com/uploads/1/3/0/5/130588502/bfa04.pdf
    • http://caracarpenter.com/uploads/1/3/0/4/130475892/6657506.pdf
    • http://www.fabian-ng.com/uploads/1/3/0/7/130776727/kokojujixibideserod.pdf
    • http://qmhle.bpmtc.com/uploads/1/3/0/5/130541064/130541064.html#exercices+pronoms+personnels+ce1+lutin+bazar
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d9b.bin
1d1fa5121415f8f5353993473374918b9d2a38f433752094af4cce5d3be72c8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D9B 16312 bytes
font_01_sfnt_off000042c5.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x42C5 1708 bytes
font_02_sfnt_off00004dec.bin
c8e5b2f3767025d28b791ff56e6cc4f532d71a2b7f2f0023cd8c6fef95adda93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DEC 8776 bytes

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