Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f40454696332094…

MALICIOUS

PDF

65.8 KB Authoring application: OpenOffice Draw
MD5: b19cc0f90e7b944dca8c21df2bbaca37 SHA-1: 4c3581d9fa6b53fac19786f8f433697de3d0ac1c SHA-256: 0f40454696332094931543094df41275bb93a5ffbf28fee3ac61bdc55d9948c8
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files across numerous domains, a pattern identified as a PDF link farm. This technique is often used for SEO manipulation or to distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, with ClamAV identifying it as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. No scripts were extracted, but the sheer volume of outbound links suggests a coordinated effort to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://clogdancing.org/uploads/1/3/0/6/130605196/107941.pdf
    • http://myrvtec.com/uploads/1/3/0/5/130590698/1a6fcf086b.pdf
    • http://upfh.com/uploads/1/3/0/6/130621353/c80aa2414bfc58.pdf
    • http://bigrockface.com/uploads/1/3/0/8/130813079/xopapudolodomubito.pdf
    • http://www.katarinadecaux.com/uploads/1/3/0/6/130621437/4524a8376.pdf
    • http://mythinkando.com/uploads/1/3/0/5/130551197/1038089.pdf
    • http://axjresources.com/uploads/1/3/0/8/130873822/vufuzimokopap-renunoxizujeju.pdf
    • http://jandpautoservice.com/uploads/1/3/0/6/130604004/9301855.pdf
    • http://summershoppingspree.com/uploads/1/3/0/8/130813956/eb9de4e.pdf
    • http://mx.lcmasonry.com/uploads/1/3/0/5/130588480/zelijakilupegu_zovelurosemenud_dirasu_gojuwisunewaguk.pdf
    • http://www.socialcomedynetwork.com/uploads/1/3/0/4/130483052/gifobejus.pdf
    • http://www.chandlermedicalpllc.com/uploads/1/3/0/6/130604750/99067.pdf
    • http://rodzinne-apteki.pl/uploads/1/3/0/8/130874222/12b68b1bcdfc.pdf
    • http://www.photovolumetrix.com/uploads/1/3/0/2/130289721/5472518.pdf
    • http://marriottsap.com/uploads/1/3/0/2/130272477/1bda9abe.pdf
    • http://atypical.film/uploads/1/3/0/7/130739678/zowivebusularujafo.pdf
    • http://cmisafes.com/uploads/1/3/0/8/130874592/7851774.pdf
    • http://crhardscape.com/uploads/1/3/0/2/130288661/5532690.pdf
    • http://adarchivist.net/uploads/1/3/0/2/130272347/gilap_gijibipowipulot_nerojoposutu.pdf
    • http://llnoble.net/uploads/1/3/0/2/130288483/5b5ee2a.pdf
    • http://atlwindowcleaningexperts.com/uploads/1/3/0/4/130489536/a19c7.pdf
    • http://sarahstrasser.net/uploads/1/3/0/5/130540296/9dc87ae3f7b03.pdf
    • http://9pucc.slpny.com/uploads/1/3/0/5/130551174/130551174.html#uv-vis-nir+spectrophotometer+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001488.bin
f81adad9e5a5969176402468632c288ffbbdb3808f9ebb3273407fcd8508ac64
pdf-font-stream PDF embedded font (sfnt) at offset 0x1488 9668 bytes
font_01_sfnt_off0000a8d6.bin
1271d681f6e8579a40fed5dee4a2796e0d63ab98d1841a151321f51cc80c6e40
pdf-font-stream PDF embedded font (sfnt) at offset 0xA8D6 16116 bytes
font_02_sfnt_off0000bd7c.bin
7d0c7748e63cef93ee416ec30294b7fa0be499704face692777185eaef7388dc
pdf-font-stream PDF embedded font (sfnt) at offset 0xBD7C 3456 bytes