Malicious PDF — malware analysis report

Static analysis result for SHA-256 f24a11e6c3a660c4…

MALICIOUS

PDF

37.2 KB Authoring application: Inkscape
MD5: 9a9666ebe5597454eefc7506815a7121 SHA-1: 62932bb16462373f2536ae002b717719b1761612 SHA-256: f24a11e6c3a660c40afcf883e168dc3485652037ac0cd7610ff972b1d798c65f
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or distributing further malware. The document body content is garbled and does not provide specific lures, but the overall structure points to a link farm designed to redirect users to potentially harmful content hosted on various domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://persistresist.org/uploads/1/3/0/6/130604823/7280101.pdf
    • http://websitedesign-norfolk.com/uploads/1/3/0/5/130551457/tafigeponaze-sibomokoxozubin-jowiremadiki.pdf
    • http://unicorninvestmentsgroup.com/uploads/1/3/0/6/130604521/kinodavewoj_voxoregilude_jasef_mudopom.pdf
    • http://heatherzidle.com/uploads/1/3/0/6/130639767/3861981.pdf
    • http://nicholassearle.com/uploads/1/3/0/7/130738984/vodato-jawijek-gosemi-xexipadelo.pdf
    • http://appraiseradvance.com/uploads/1/3/0/8/130813818/8ed90bb8b4ae.pdf
    • http://mystparanormal.com/uploads/1/3/0/4/130435500/57cdc8aae036.pdf
    • http://thehandofgreece.com/uploads/1/3/0/4/130483345/4372046.pdf
    • http://nswoysters.com/uploads/1/3/0/3/130313507/dubekijapo-mavovunakal-vedilinisukijuk-xofikopifumo.pdf
    • http://howtosoul.com/uploads/1/3/0/2/130289630/zajonigo_seziwod_moritudokimod_falozapodo.pdf
    • http://host138.carmichaelnl.com/uploads/1/3/0/6/130620700/130620700.html#preliminary+draw+for+the+2018+fifa+world+cup+russia+live+stream
    • http://heatherzidle.com/uploa

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003aae.bin
e5313b2624742ba551d840f2d9e731c87acd9364c8cb0e26a048bb1294d0ba98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3AAE 8060 bytes

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