Malicious PDF — malware analysis report

Static analysis result for SHA-256 b66319fc45065807…

MALICIOUS

PDF

30.4 KB Authoring application: SWFTools
MD5: c23c75fe5b5b34de2e615c8b2007ea08 SHA-1: 1bc007a57d2725e5f62afb2248293978fea2377f SHA-256: b66319fc45065807f3f92b0290c7c859eb3d91a217260dc56e5c48a882d1d87e
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains a large number of embedded URLs pointing to other PDF files across various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, aligning with the PDF_SEO_LINK_FARM heuristic.

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://danahabeeb.org/uploads/1/3/0/7/130738861/voluvaxe-tusexuvu.pdf
    • http://bentoone.com/uploads/1/3/0/6/130639461/baxugolatutazibo.pdf
    • http://litem.net/uploads/1/3/0/4/130488401/d73e5cc8afd.pdf
    • http://www.jwbhilliarddavidsoncapstone.com/uploads/1/3/0/3/130379461/dukobuzagikazi.pdf
    • http://vectornator.org/uploads/1/3/0/2/130289021/e0d56b.pdf
    • http://gummycats.com/uploads/1/3/0/7/130775998/nupufesikadu.pdf
    • http://addisonbeaux.com/uploads/1/3/0/7/130775828/75c11ef3dce5bb.pdf
    • http://acreggconsulting.com/uploads/1/3/0/7/130775310/welagawisukofa.pdf
    • http://jilljohnsonstorybooks.com/uploads/1/3/0/6/130604187/1504774.pdf
    • http://azaziebenefits.com/uploads/1/3/0/6/130604420/xepovep.pdf
    • http://escortsclassifiednetwork.com/uploads/1/3/0/5/130540082/nofujizejubi.pdf
    • http://rtpreston.com/uploads/1/3/0/3/130379228/zebudog-voluziro-rexogas-jegamuxawobi.pdf
    • http://theclementcanopysg.com/uploads/1/3/0/5/130541028/8210281.pdf
    • http://cookislandparadise.com/uploads/1/3/0/5/130547450/xokazowaniregeweseja.pdf
    • http://transcontinentalterror.com/uploads/1/3/0/2/130272470/8f0ad01b56d85.pdf
    • http://thecbdcandycollection.com/uploads/1/3/0/6/130639775/favujigoxunofuw.pdf
    • http://morningourmet.net/uploads/1/3/0/6/130604312/245180.pdf
    • http://www.reclaimingfemininefire.com/uploads/1/3/0/7/130776103/xesazavaw-taniseleku-maledazida.pdf
    • http://aberturasazteca.com/uploads/1/3/0/7/130776070/metiralogi.pdf
    • http://thecraft2draft.com/uploads/1/3/0/3/130323522/6738552.pdf
    • http://passmankade.com/uploads/1/3/0/6/130621283/pagul.pdf
    • http://growmygardens.com/uploads/1/3/0/5/130588987/130588987.html#ethiopian+orthodox+bible+in+amharic+81

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001927.bin
d158d4ba50ec7227d01ce23c3cbff0c64f5015e9e998c4fc0ee8bab1a353b737		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1927 6616 bytes

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