Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e9c845b20c277ea…

MALICIOUS

PDF

39.4 KB Authoring application: Smallpdf Desktop
MD5: c4fa5c0bdb0fd42f82092b685c956267 SHA-1: 40894ff5e1782fbb3d855226e0630f199f189ce3 SHA-256: 1e9c845b20c277ea125291d11afc91489c26935fb7a2e51547d3418f6dcb4ea7
150 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, identified as a 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The document body, though partially corrupted, contains text related to 'Meeting agenda template word download' and includes numerous URLs pointing to PDF files on unrelated domains, suggesting a phishing or spam campaign designed to drive traffic or distribute further malware.

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://onlinewebcammodels.com/uploads/1/3/0/2/130272609/6130653.pdf
    • http://assessmentsystemscorporation.com/uploads/1/3/0/7/130739415/2c6d1f96324.pdf
    • http://momentumdanceandfit.com/uploads/1/3/0/5/130588789/jezevepo_bados.pdf
    • http://shibagarden.com/uploads/1/3/0/7/130739922/e3efe34119.pdf
    • http://tvwithoutcable.com/uploads/1/3/0/2/130270989/bitobimasole_bizibafug_zetesa_fupuvevilusosu.pdf
    • http://azmendinglives.com/uploads/1/3/0/6/130604758/kegitonifegodesodawu.pdf
    • http://iboughtalemon.com/uploads/1/3/0/5/130540507/3124208.pdf
    • http://www.mhsclassof1976.com/uploads/1/3/0/6/130621870/xozopoxem.pdf
    • http://beamazingbrasil.com/uploads/1/3/0/2/130289703/3430656.pdf
    • http://nickhaymedia.com/uploads/1/3/0/6/130639879/dagopibetu.pdf
    • http://kngproduction.com/uploads/1/3/0/3/130323425/5386073.pdf
    • http://henrylabs.org/uploads/1/3/0/8/130813975/xemugorot.pdf
    • http://www.the-healing-leaf.com/uploads/1/3/0/6/130639591/5830557.pdf
    • http://annamariecrowhurst.com/uploads/1/3/0/3/130323764/fusifu_polipedekuj_vunepuni_dipagegu.pdf
    • http://soundoftheshoals.com/uploads/1/3/0/6/130620693/fabavapisos_madim.pdf
    • http://mikeeclark.com/uploads/1/3/0/5/130588803/porufezegavuxe.pdf
    • http://michaeleggerl.com/uploads/1/3/0/7/130739633/mukitumin_zabakobez.pdf
    • http://caretrakr.com/uploads/1/3/0/6/130604907/9541828.pdf
    • http://vanmarkitonmusic.com/uploads/1/3/0/5/130588258/winikeg_wuvovif_fibinoxut.pdf
    • http://palomarpools.com/uploads/1/3/0/4/130488387/miwiripiliwusapo.pdf
    • http://theordinaryvoter.com/uploads/1/3/0/8/130814192/6780706.pdf
    • http://aldovaccaro.com/uploads/1/3/0/7/130775391/5534214.pdf
    • http://daniellepollock.com/uploads/1/3/0/8/130874055/130874055.html#meeting+agenda+template+word+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003935.bin
844fb9d0763f8fcec23dff1da6bfa2494a4f52d30c6b574f3d60591755f5c4aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3935 7588 bytes

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