Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb5b15eca3e881cf…

MALICIOUS

PDF

46.2 KB Authoring application: Inkscape
MD5: 8ca6108e7eecd31aa8f19d0219d2cd31 SHA-1: 65068c3f57e00b0271237f07384b0e8ecadf5ffb SHA-256: cb5b15eca3e881cf8f807fce8705ee38e0948538f0a186019d77ce4c92e9c8ec
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 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 also flags this as phishing-related. The document body, though heavily obfuscated, contains many of these same URLs, suggesting a deliberate attempt to direct users to external resources. The primary goal appears to be SEO manipulation or distribution of further malicious content via these links.

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://newhopephotographylakeland.com/uploads/1/3/0/2/130270957/ebc453e4e9af0.pdf
    • http://bestmassagescottsdale.com/uploads/1/3/0/6/130640023/3373335.pdf
    • http://beachesinsrilanka.com/uploads/1/3/0/2/130289274/sukipewebivolipa.pdf
    • http://fuxu.florissimo29.ru/uploads/2020/01/29/9be4adfae.pdf
    • http://xujetunun.kangaroo-shop.ru/uploads/2020/01/29/367aee.pdf
    • http://graticise365.com/uploads/1/3/0/5/130551824/06eea5193d6.pdf
    • http://mindbodyhealthcoaching.com.au/uploads/1/3/0/4/130436298/xipibani-juluteguvine-jerew-nusutupaz.pdf
    • http://immaximized.org/uploads/1/3/0/4/130488569/zotaxetejudawes.pdf
    • http://orvjamboree.org/uploads/1/3/0/6/130605344/begixixekokosede.pdf
    • http://dgdiamondgalleria.com/uploads/1/3/0/5/130541065/fopeviso_wewale_dipijez_buvid.pdf
    • http://christine-carney.com/uploads/1/3/0/6/130620873/6792336.pdf
    • http://colddiamnd.com/uploads/1/3/0/4/130483407/130483407.html#warcry+monsters+and+mercenaries

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001344.bin
2e57ad9aacd440eb8bb41dfc250ba524f8aaa811bce41219fa78d5adec184436		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1344 8512 bytes
font_01_sfnt_off00006bf9.bin
66e78637c01a8d26abb20f821ca502d7e474c8bac4340e43f21cc1f193dc6e49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF9 16892 bytes

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