Malicious PDF — malware analysis report

Static analysis result for SHA-256 828c454477438e35…

MALICIOUS

PDF

35.8 KB Authoring application: GIMP
MD5: 103317f42e7bae15f3e469e21280178c SHA-1: e83700542871ee7ecf4971fe351358fce21e8dc6 SHA-256: 828c454477438e35314dc1be1ab77edb3ea7fedf4e6ae416df51be3be431c1d2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

This PDF file contains a large number of embedded links to external PDF documents, a technique commonly used for SEO poisoning or phishing. The heuristic 'PDF_SEO_LINK_FARM' and the ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly indicate a malicious intent to redirect users to potentially harmful content. The document body itself is heavily corrupted and does not provide further context.

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://hostmaster.linda-daunter.uk/uploads/1/3/0/9/130969438/pixoz.pdf
    • http://tulatech.com/uploads/1/3/0/7/130738975/dinelazobujis.pdf
    • http://economicstitan.com/uploads/1/3/0/6/130604744/7cc3f737c537ff1.pdf
    • http://simplycfood.com/uploads/1/3/0/6/130620532/pirixir-perawujik.pdf
    • http://crimsonentertainmentllc.com/uploads/1/3/0/7/130775339/39d352.pdf
    • http://sonoratradingpost.net/uploads/1/3/0/7/130774981/defuvageded.pdf
    • http://2catsinabox.com/uploads/1/3/0/7/130775267/ca1ec2cd6996a.pdf
    • http://carolinelindley.com/uploads/1/3/0/4/130435524/2799005.pdf
    • http://uptimemanutencao.com/uploads/1/3/0/2/130287310/wugozesojegasejobopu.pdf
    • http://abnerdelnorte.com/uploads/1/3/0/3/130313108/tegevumim_buripopade_suranigodo_perima.pdf
    • http://rvpartsandcarts.com/uploads/1/3/0/4/130489367/xefukopetid_puvurujidobod_jafamuzuzoloruz_rewij.pdf
    • http://habitmkr.com/uploads/1/3/0/6/130603811/2010064.pdf
    • http://ianwalkerlaw.com/uploads/1/3/0/2/130289549/nenumerazizamuve.pdf
    • http://chuyitos.com/uploads/1/3/0/5/130589126/sabus.pdf
    • http://motortrainingtotaal.com/uploads/1/3/0/5/130588893/0481f674f.pdf
    • http://nakomagraeagle.com/uploads/1/3/0/7/130739454/9147007.pdf
    • http://escaperoomfairfax.com/uploads/1/3/0/7/130739278/4658829.pdf
    • http://weed-feed.me/uploads/1/3/0/8/130814960/jonub.pdf
    • http://famcoinsurance.com/uploads/1/3/0/4/130483337/bugigosejor.pdf
    • http://fittiewedding.com/uploads/1/3/0/4/130477775/namiwilasaguvi_luvepof_xedepo.pdf
    • http://onlinenursingdegrees.net/uploads/1/3/0/2/130270932/tuwepe.pdf
    • http://nathaniel-e-yamamoto.com/uploads/1/3/0/7/130775593/dulotunivugazip_memepumulotudi_fugugiterija_gibinev.pdf
    • http://www.sunshineuniquedetailing.com/uploads/1/3/0/4/130483573/8908746.pdf
    • http://511.bpmtc.com/uploads/1/3/0/2/130289498/130289498.html#bio+rad+gel+electrophoresis+youtube
    • http://nathaniel-e-yamamoto.com/uploads/1/3/0/7/130775

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000027af.bin
14541ceea8469787d21285c8e645954b17884f5ec9965411e176fa3ed3fdaacd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AF 8376 bytes

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