Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f7287cf27a51c02…

MALICIOUS

PDF

52.4 KB Authoring application: OpenOffice.org
MD5: be36b9ad6c629f9f5282e76592a4247c SHA-1: 8945ce897ccde9e00a545e3b8d94cd4a8600e708 SHA-256: 6f7287cf27a51c02dba93e5de35f135b9df6b037282e92914d38cf3848dcc1c5
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded external links, a technique often used for SEO poisoning or to redirect users to malicious sites. ClamAV detected this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or malicious redirection intent. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://kaleokafe.com/uploads/1/3/0/5/130543878/romolejisa.pdf
    • http://backflow.site/uploads/1/3/0/5/130551599/zovofiguz.pdf
    • http://www.allenmayllc.com/uploads/1/3/0/7/130775435/nobele.pdf
    • http://oahphx.com/uploads/1/3/0/7/130776757/resekavekixib.pdf
    • http://mail.eatyourheartoutsd.com/uploads/1/3/0/4/130491850/sabawobowo.pdf
    • http://shopp-italia.fun/uploads/1/3/0/6/130621330/gozusujufiguno.pdf
    • http://vivavocestyling.com/uploads/1/3/0/4/130435938/dakazubebidabi.pdf
    • http://stand1armory.com/uploads/1/3/0/6/130605111/855f4f936f85b02.pdf
    • http://bigwatervista.com/uploads/1/3/0/7/130738955/9514141.pdf
    • http://nsuokchoirs.com/uploads/1/3/0/5/130590235/tufonibekoxukatibas.pdf
    • http://olingerphotography.com/uploads/1/3/0/8/130873833/6677040.pdf
    • http://minibodegasdeconcepcion.com/uploads/1/3/0/2/130291676/7259561.pdf
    • http://milablooms.com/uploads/1/3/0/4/130483733/7483363.pdf
    • http://nolagirlcustomcreations.com/uploads/1/3/0/4/130477468/varufabexibo.pdf
    • http://grobins.org/uploads/1/3/0/2/130270747/a41a3badaf982.pdf
    • http://ilcsriverside.com/uploads/1/3/0/6/130640006/tinopa.pdf
    • http://www.capferratsandspoint.com/uploads/1/3/0/4/130478520/5258898.pdf
    • http://mx.stocktonbowlinglanes.com/uploads/1/3/0/8/130874180/bupeganebu.pdf
    • http://aammf.bpmtc.com/uploads/1/3/0/8/130874012/130874012.html#aileen+wuornos+pelicula
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense
    • 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_off00004c8b.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C8B 2652 bytes
font_01_sfnt_off00005557.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5557 16036 bytes
font_02_sfnt_off00006d0d.bin
51453fa07355bf202ff477e6257c2128626b956fd87a282dd44816582824055f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0D 9568 bytes

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