Malicious PDF — malware analysis report

Static analysis result for SHA-256 28a4e19d02d75d79…

MALICIOUS

PDF

58.2 KB Authoring application: Serif PagePlus
MD5: 4a769c71b256855c49b86e0c68beae69 SHA-1: 595b2a191f7d76c70a4099ab483dc8bdc6595606 SHA-256: 28a4e19d02d75d790a8a7830253b374ee6dbc8bbe1bb6b9009b72f82a2e80263
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF documents hosted on various domains. This technique is often used to create link farms for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic-driving intent. No scripts were extracted, and the document body content is largely unreadable, making it difficult to determine the exact lure.

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://brownsvillese92.com/uploads/1/3/0/5/130590195/menap.pdf
    • http://cairobritishcollege.com/uploads/1/3/0/5/130539348/mekuzewewo_gegubuv_tubekexa_jowisukow.pdf
    • http://motherstouchmedical.com/uploads/1/3/0/5/130588378/27ff49639.pdf
    • http://harrywhophotoblog.com/uploads/1/3/0/6/130620401/9494941.pdf
    • http://nowallsministry.net/uploads/1/3/0/5/130590582/7d2ac52.pdf
    • http://fliphousesnotburgers.info/uploads/1/3/0/5/130588334/8e83dfd9.pdf
    • http://nationalfootballcheerleadersalumni.org/uploads/1/3/0/4/130476075/130476075.html#institutional+arbitration+in+india+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011cb.bin
09f592b8bf5ac5a6860616e4f0ba5a71a3c701bb816dfa6e0961d97fde939a1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11CB 8596 bytes

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