Malicious PDF — malware analysis report

Static analysis result for SHA-256 fafb63f7b260982d…

MALICIOUS

PDF

36.5 KB Authoring application: Scribus
MD5: 3924151d04f8ed752f2ea60317c2176e SHA-1: dd0f8a21051299565688bca48272b86813116395 SHA-256: fafb63f7b260982dcb50776244b448d0cbd9898a0c5a0a376b2649e785d6b523
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by multiple heuristics, including a critical finding for a link farm and a machine learning classifier indicating maliciousness. ClamAV also detected it as phishing malware. The document body contains numerous URLs pointing to external PDF files, suggesting a phishing or redirection campaign. No scripts were extracted from this sample.

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://alfnevents.org/uploads/1/3/0/6/130621515/tixopo.pdf
    • http://advantageonellc.com/uploads/1/3/0/3/130323471/kizig.pdf
    • http://admventures.tech/uploads/2020/01/28/tiderelobepimopakuwe.pdf
    • http://andrewwarnerdogtraining.com/uploads/1/3/0/3/130313107/cea2bed61.pdf
    • http://newalbanyroof.com/uploads/1/3/0/5/130588824/cd7ba2.pdf
    • http://bijis.bara-bum.ru/uploads/2020/01/28/musijijevawiri.pdf
    • http://motisbusinesscentre.weebly.com/uploads/1/3/0/3/130312964/3902761a3a471.pdf
    • http://mrobrien.net/uploads/1/3/0/6/130621698/vulid_xinapekuve_likese.pdf
    • http://millie4good.org/uploads/1/3/0/4/130488530/vaxidexidodedirodil.pdf
    • http://nikonicreagan.com/uploads/1/3/0/3/130379465/130379465.html#gelinkaya+belediyesi+midyat+haberler

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013d8.bin
99bf468cf2bc30fc3375ddb02e6ca8c773a6d012664ad0ecaaeda51b24c376e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13D8 9176 bytes

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