Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4846cb02c829a13…

MALICIOUS

PDF

37.6 KB Authoring application: Adobe PDF Library 9.0
MD5: 2a5c3595524d47ac1276ec647a647962 SHA-1: e746945bcd525ed1e70d9e49f8cb283c0c3080aa SHA-256: b4846cb02c829a135356d694e8feef24f6567b8489b76b42843321a18b4ad98e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to redirect users to 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 linked PDFs suggests a coordinated effort to drive traffic to potentially compromised or malicious sites.

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://drivesuperiorcarriers.com/uploads/1/3/0/2/130291592/voxapufadoxudagaba.pdf
    • http://www.vancouverfreediving.net/uploads/1/3/0/6/130621261/4122532.pdf
    • http://orthovalue.com/uploads/1/3/0/5/130588206/3d156838bdb6ef8.pdf
    • http://nj-trucking-lawyers.com/uploads/1/3/0/5/130590474/pefadijenusivam.pdf
    • http://dessertwarsmiami.com/uploads/1/3/0/4/130489841/givajefataki.pdf
    • http://multimanialtd.com/uploads/1/3/0/3/130379219/ecdab.pdf
    • http://www.superiorbreed.com/uploads/1/3/0/6/130621554/gubowakifuseduf.pdf
    • http://wilsontphotography.com/uploads/1/3/0/3/130379575/cab612f.pdf
    • http://villasvitao.com/uploads/1/3/0/4/130476454/f018dc06.pdf
    • http://yorkshiremotel.com/uploads/1/3/0/7/130739618/f284f8.pdf
    • http://adayofhope.co/uploads/1/3/0/5/130547286/4126879.pdf
    • http://cappyphalen.com/uploads/1/3/0/6/130620972/woseturuv-tejeroperegoz-meserux.pdf
    • http://octoflow.io/uploads/1/3/0/3/130379172/vogebejufetoned-worobadilu-lafelizow.pdf
    • http://growthhackingfunnel.com/uploads/1/3/0/4/130483273/zedeb-govul-rudejata-bilamasuku.pdf
    • http://trophybearer.org/uploads/1/3/0/5/130588805/nefabodotubezizos.pdf
    • http://hostmaster.d-mark.ch/uploads/1/3/0/4/130488304/65b82a70e.pdf
    • http://number120designs.com/uploads/1/3/0/2/130271154/sajexe-lepesodipepujoj-pimona.pdf
    • http://msg-ec.com/uploads/1/3/0/5/130544437/4722262.pdf
    • http://zelt1.bpmtc.com/uploads/1/3/0/6/130604878/130604878.html#intractable+epilepsy+with+status+epilepticus+icd+10

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000035ac.bin
616371f63363b2c86a809e2f11edd6eaa05195d02adfde1a1c488ed19a3a924b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x35AC 7820 bytes

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