Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dc4a8d1e4bc5c29…

MALICIOUS

PDF

67.0 KB Authoring application: Mobipocket Creator
MD5: 170487ef6b02bee7e09bb0d8851e0ae4 SHA-1: 4f5105537a7cae44a10ca6add06dbba97b808630 SHA-256: 8dc4a8d1e4bc5c29e95d012e27fd004099932fc6f472c63f2af0ad2b96660533
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents across various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://objects-of-grace.com/uploads/1/3/0/4/130436159/7857292.pdf
    • http://cedarviewbaptist.org/uploads/1/3/0/5/130551338/5296752.pdf
    • http://mypartneriskinky.com/uploads/1/3/0/2/130288986/cc5d875.pdf
    • http://growtem.com/uploads/1/3/0/4/130476152/5830014.pdf
    • http://perfectcreationsforyou.co.uk/uploads/1/3/0/5/130551653/2315998.pdf
    • http://borisbrew.com/uploads/1/3/0/7/130740618/vebeli_kiwobozabofuwe.pdf
    • http://milweeband.weebly.com/uploads/1/3/0/6/130604148/zawukalexudurebepak.pdf
    • http://gfx.directory/uploads/1/3/0/2/130271087/9827903.pdf
    • http://nationalfootballcheerleadersalumni.org/uploads/1/3/0/2/130291769/130291769.html#answers+for+math+books

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001235.bin
5b97b1d38efddda720a2dbd2f0ab879318d42f7322a622f4e48d340aa5dcda4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1235 8400 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.