Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5286da8cca14e0c…

MALICIOUS

PDF

58.9 KB Authoring application: Inkscape
MD5: f162708e2f2852ce883157d75d5d16e4 SHA-1: 79180cd4ecbfe841b0494825025f27d152e60475 SHA-256: a5286da8cca14e0c0660d977de6498263fb0c804b68db4af15250e496ab2d16c
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a link farm and ClamAV detection as phishing malware. The document body contains a large number of embedded external links, all pointing to PDF files on various domains. This suggests the primary purpose is to redirect users to potentially malicious content hosted on these external sites, likely for phishing or malware distribution.

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://vinyl61.net/uploads/1/3/0/6/130621309/2323395.pdf
    • http://nannytherapy.net/uploads/1/3/0/6/130620345/kabew.pdf
    • http://adamasadvisory.com/uploads/1/3/0/5/130589048/a50edb.pdf
    • http://adventuresinedtech.com/uploads/1/3/0/7/130739368/sepakutabopim_jesaxovexa.pdf
    • http://ginekologjakiel.pl/uploads/1/3/0/2/130273944/6216201.pdf
    • http://theilovemebrand.com/uploads/1/3/0/4/130436093/gexugilu.pdf
    • http://noahsusskind.net/uploads/1/3/0/6/130604823/9b9b9.pdf
    • http://wifeycosmetics.com/uploads/1/3/0/4/130476033/wimakodimi.pdf
    • http://spotlightchildrenstheater.com/uploads/1/3/0/7/130739204/xixibezavanutini.pdf
    • http://bisconsulting.it/uploads/1/3/0/5/130551226/2588744.pdf
    • http://realmsofreflections.com/uploads/1/3/0/4/130476205/8846907.pdf
    • http://us.momotombochocolatefactory.com/uploads/1/3/0/6/130620547/130620547.html#biuret+reaction+meaning+in+hindi

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000016d0.bin
19c22613cf8eb21111719d91e9550f5cbfb6794074c3533e2490c32423466548		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16D0 9316 bytes
font_01_sfnt_off000095b8.bin
63f5e27ee3d24cc00d413e59c301cc73ab377383609796993547673f2bea898c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95B8 2600 bytes
font_02_sfnt_off00009e90.bin
ebe3f2c32fad468973945e13f31cceee7311791eb4a0f70a02383b074d4cb88a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E90 16464 bytes

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