Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ed96a0dc1f3912b…

MALICIOUS

PDF

39.1 KB Authoring application: PDF Studio
MD5: 395f6e8c406faf5bc3bf4440ba677b0c SHA-1: b9a93fc8d8d51ffca4b1dc71e600bc06e162c8fc SHA-256: 6ed96a0dc1f3912b2a336fe6ac6b6dfd2970eb98b5332623404fec1d3f1c7fb0
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, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the sheer volume of external links suggests a coordinated effort to redirect users.

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://mta-sts.kyemunroe.com/uploads/1/3/0/7/130776023/xirok-refuv-nibisubuw.pdf
    • http://flamenfires.com/uploads/1/3/0/6/130604067/totalizu_jebikuze.pdf
    • http://premierpave.co.uk/uploads/1/3/0/4/130476887/651541.pdf
    • http://www.e-volvealready.com/uploads/1/3/0/8/130874035/bozok.pdf
    • http://bryanblue.com/uploads/1/3/0/5/130544086/tijijog_diwolof_dedarosawifole.pdf
    • http://www.saveourmarriage.ca/uploads/1/3/0/4/130479389/reserivopulutusam.pdf
    • http://webmail.mcdaniels.ro/uploads/1/3/0/3/130379150/dupedunaruledor.pdf
    • http://sober-housing.net/uploads/1/3/0/8/130874045/sixejofedanozuvip.pdf
    • http://perfectfit.live/uploads/1/3/0/6/130621277/bixef.pdf
    • http://empathtoorder.com/uploads/1/3/0/7/130776110/wuxom.pdf
    • http://louisvillecustomfabrication.com/uploads/1/3/0/7/130740184/2184965.pdf
    • http://www.chantillyplacema.com/uploads/1/3/0/7/130776334/fadelavuwamekop.pdf
    • http://networkinginhighheels.com/uploads/1/3/0/5/130588377/6817523.pdf
    • http://zado.online/uploads/1/3/0/4/130435650/limoxegixujerir-giteruzijiwe.pdf
    • http://michaelvincentportfolio.com/uploads/1/3/0/5/130590779/4522800.pdf
    • http://vivabemjustoimoveis.net/uploads/1/3/0/7/130738697/xegonolulanatovaselo.pdf
    • http://xrevster.com/uploads/1/3/0/7/130776138/20a28db7f.pdf
    • http://mimswright.net/uploads/1/3/0/6/130639278/madixajaxinunixeze.pdf
    • http://iphonegamerguide.com/uploads/1/3/0/4/130476244/5243773.pdf
    • http://h2designstudios.com/uploads/1/3/0/5/130588934/323bf74.pdf
    • http://tiffinindia.ca/uploads/1/3/0/4/130476130/rudun_wolobuseg_fidamuji.pdf
    • http://www.sheenaclover.co.uk/uploads/1/3/0/6/130639665/texosaxogeveno-satujevuva.pdf
    • http://katletki.com/uploads/1/3/0/6/130605380/fezidalenaxetosazu.pdf
    • http://www.spacecreationdesign.com/uploads/1/3/0/6/130639860/130639860.html#explain+the+difference+between+variable+costing+and+absorption+costing

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003346.bin
8f4fbeb3385b7b668304b91374ed07cb2ec498ebd952bfafdd9f9b5ef9447180		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3346 8832 bytes

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