Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d773d8120979378…

MALICIOUS

PDF

47.5 KB Authoring application: Soda PDF
MD5: d87a528be0c9009c76c11ccdb143846f SHA-1: b2541da01dc0a24226821d68d964bbb6bc0c372a SHA-256: 8d773d81209793780b6cbf75ab3fd00349136cd8b3f89d2be05f3cd58c9eb383
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, a common technique for SEO poisoning or phishing campaigns. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall, indicating a phishing or traffic redirection intent. The embedded URLs likely lead to further malicious content or phishing pages.

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://mvillstyles.com/uploads/1/3/0/6/130605230/xutapanoj.pdf
    • http://artisanstory.com.au/uploads/1/3/0/5/130543472/9905356.pdf
    • http://msestate.co.jp/uploads/1/3/0/8/130814106/21542e0.pdf
    • http://aprendeinlgesrapido.com/uploads/1/3/0/4/130476034/pidipenazoram.pdf
    • http://yourridehomeohio.com/uploads/1/3/0/5/130543366/6751585.pdf
    • http://omt�nk.se/uploads/1/3/0/4/130436299/514429.pdf
    • http://hauntednorthwest.com/uploads/1/3/0/8/130873798/5631428.pdf
    • http://revolista.net/uploads/1/3/0/6/130639689/kogesonebola.pdf
    • http://joblanta.com/uploads/1/3/0/2/130289628/9959101.pdf
    • http://mindbodsoul.com/uploads/1/3/0/7/130739975/xafokabawu.pdf
    • http://mogulmeadows.org/uploads/1/3/0/8/130813998/9910255.pdf
    • http://serenitycosmetcidental.com/uploads/1/3/0/3/130323479/2420af4.pdf
    • http://sta-66-99-58-218.ladse.org/uploads/1/3/0/7/130775229/130775229.html#connected+speech+rules+pdf

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003ec3.bin
f8315a95d24cdba18e2e9f70787fbc887b11450d729bd2a0a9c9db0fae23971d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3EC3 2996 bytes
font_01_sfnt_off000048e5.bin
d2001a79dad39b614efd046c8047467f87e852bc2185b456492ebcb88af0645b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48E5 16604 bytes
font_02_sfnt_off0000624a.bin
4b36408c4f5b5e0d81a6b4100d6258aa6c686f8e5ea7c934dd31ee03bfed08ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x624A 8016 bytes

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