Malicious PDF — malware analysis report

Static analysis result for SHA-256 24ddce0b7bc7aede…

MALICIOUS

PDF

48.1 KB Authoring application: PDFBox
MD5: 08e259a2142f2c8d9b5a745ca45f8e3d SHA-1: b24f08d9f67421ff3eafe257dcb7fd4092811a82 SHA-256: 24ddce0b7bc7aede87e695ee9c0c823874c8b4af1ea099832d1e2537c00b0b03
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as an ebook download, a common lure for phishing or malware delivery. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the PDF_SEO_LINK_FARM heuristic strongly indicate malicious intent. The embedded URLs are likely used to redirect users to malicious content or download further payloads.

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://michaelsautodetailing.com/uploads/1/3/0/6/130622111/zekezivapirevelunov.pdf
    • http://mirandasanderson.com.au/uploads/1/3/0/5/130551559/misuvivatasunig-zidevopemumid-lepumewubam-xejetokaz.pdf
    • http://beachclubproductions.net/uploads/1/3/0/4/130476511/036b41939c8d8.pdf
    • http://verticesglobals.com/uploads/1/3/0/4/130475932/nazugevup-nusiv-goxirisekufi.pdf
    • http://supergcoating.com/uploads/1/3/0/6/130604527/xojemekiw.pdf
    • http://miaburundi.com/uploads/1/3/0/6/130604032/1d8080616.pdf
    • http://mychinesewatch.com/uploads/1/3/0/6/130604241/130604241.html#big+little+lies+ebook+free+download

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001205.bin
617c0a0e913521327187fa7505af6cd692334d124cf8f1fb2269b490f47f0a1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1205 9688 bytes
font_01_sfnt_off000069a9.bin
58c0d33692c287bcc61c2c4fecfb4f397d2d027191c7260e0015b2e50ae88ca7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69A9 11348 bytes
font_02_sfnt_off00008223.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8223 1708 bytes

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