Malicious PDF — malware analysis report

Static analysis result for SHA-256 c89ba0e25c4f1773…

MALICIOUS

PDF

35.8 KB Authoring application: Serif PagePlus
MD5: 208aac968c353893d6436dd5bf4419f9 SHA-1: ff082e109064731cf19ea8be1aca541650512294 SHA-256: c89ba0e25c4f17731c5beb510b3ddbdc0ed50d2b5169aba9d06f935dc82b0347
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a phishing or SEO manipulation attack. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URLs are likely used to redirect users to malicious sites or download further payloads.

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://reedhendersontrust.org/uploads/1/3/0/3/130379094/juzazoge_magesobemodoni.pdf
    • http://blogdeviajes.net/uploads/1/3/0/7/130738644/tutejemasu.pdf
    • http://museumeats.com/uploads/1/3/0/6/130604789/9883459.pdf
    • http://artisanstory.com.au/uploads/1/3/0/3/130323236/wadivudezapema.pdf
    • http://awonderfulyarn.com/uploads/1/3/0/6/130604044/ridigelab-lodalavo-dazefifapi-gebobosobov.pdf
    • http://mshvita.com/uploads/1/3/0/2/130271051/dawizumez_fapepapepesub_voxid.pdf
    • http://moscowshamrocks.com/uploads/1/3/0/5/130588477/xoluvemawa.pdf
    • http://mosrecredito.weebly.com/uploads/1/3/0/3/130379457/8981638.pdf
    • https://janobawutixup.weebly.com/uploads/1/3/0/5/130588256/webetoboru.pdf
    • http://northernrailleaders.com/uploads/1/3/0/5/130539908/130539908.html#how+to+spot+fake+amazon+reviews

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001225.bin
88a5cab188986ccb3653b0b3456b92c6cd52a406895f5f81aabb0371c2b0527f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1225 8252 bytes

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