Malicious PDF — malware analysis report

Static analysis result for SHA-256 dea93fdc1d6ab99c…

MALICIOUS

PDF

36.5 KB Authoring application: Pdftk
MD5: 8cbc667a6ca46f12e379ab5dff5f34fc SHA-1: f611edb36340fa90db6abee15e2c30e3edf7267a SHA-256: dea93fdc1d6ab99cc8432acf0cbf648eebb5f1aff5b40359695b761eb85a830e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to host malicious content. The heuristic 'PDF_SEO_LINK_FARM' directly indicates this behavior, and the ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious intent. The document body mentions '12th grade reading passages with questions', suggesting a lure to disguise the malicious 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://babybirthcharts.com/uploads/1/3/0/7/130739341/pazasi.pdf
    • http://lunchpong.club/uploads/1/3/0/2/130291489/7253850.pdf
    • http://disarmingdoomsday.com/uploads/1/3/0/7/130739699/8987286.pdf
    • http://ryanmittencreative.com.au/uploads/1/3/0/6/130621432/paras.pdf
    • http://karenandsteve.net/uploads/1/3/0/6/130620470/9599979.pdf
    • http://lwwpservice.weebly.com/uploads/1/3/0/3/130313044/lasakuxunurubi_kemezijenari_vusagiwutipo.pdf
    • http://mikeintucson.com/uploads/1/3/0/3/130323707/130323707.html#12th+grade+reading+passages+with+questions

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001135.bin
b2b4a68adb84dc98447adf5e49ea8606642ff6d061619330b5f7e7f5eaf6333f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1135 8832 bytes

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