Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c65b3fff1761d17…

MALICIOUS

PDF

33.0 KB Authoring application: Scribus
MD5: f1c103756d4e1c01a90e48de4eaedcbc SHA-1: e4043c6e569b84a1ef21c1165695f962af17fc55 SHA-256: 0c65b3fff1761d1766af5f5ee1d2beac17d52c7ca63b07a11341cdee19614689
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. This technique is often used to manipulate search engine rankings or to distribute malicious content. The ML classifier and ClamAV also flagged this file as malicious, supporting the assessment of a phishing or malware distribution attempt.

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://www.amyhahne.com/uploads/1/3/0/4/130483864/fudan.pdf
    • http://www.danielriddlerodriguez.com/uploads/1/3/0/6/130604309/c79becc14c5.pdf
    • http://nbptwedding.com/uploads/1/3/0/3/130313150/nalot.pdf
    • http://citywidevalet.com/uploads/1/3/0/3/130323552/7009526.pdf
    • http://btsbusiness.com.au/uploads/1/3/0/6/130640059/ruwezusesosuj-kubidigozadamiv.pdf
    • http://roslyn.online/uploads/1/3/0/2/130272580/8f51237e328.pdf
    • http://garveysbarandgrill.com/uploads/1/3/0/8/130874247/valeneri.pdf
    • http://namecoinforum.net/uploads/1/3/0/5/130543877/561e82b3c.pdf
    • http://kostasloukos.com/uploads/1/3/0/6/130603851/221beb41b5.pdf
    • http://www.henryvofficial.com/uploads/1/3/0/6/130603682/tetenaz.pdf
    • http://yogaschoolkit.com/uploads/1/3/0/5/130544089/10d0cd5bae4efe.pdf
    • http://lernenunterwegs.com/uploads/1/3/0/3/130313531/wiwepegusomo.pdf
    • http://foto-research.com/uploads/1/3/0/7/130738720/bizofuv.pdf
    • http://arcofbrowncounty.org/uploads/1/3/0/6/130605278/mapubidugevifis-metuka.pdf
    • http://stoney.studio/uploads/1/3/0/6/130604803/kogojufofove.pdf
    • http://pooldeckmarketing.com/uploads/1/3/0/6/130621926/jakito-miwomerones.pdf
    • http://npep.com/uploads/1/3/0/5/130589108/xupunugujuruti_samerimaz_denefaniku_tamerozowuk.pdf
    • http://hostmaster.gptraveller.co.uk/uploads/1/3/0/4/130475984/130475984.html#yardistry+12+x+16+wood+gazebo+with+aluminium+roof

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002394.bin
4c9f167a63702b5bc44842ec65b5d19968bbec0aad2599185de31041cedad679		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2394 8056 bytes

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