Malicious PDF — malware analysis report

Static analysis result for SHA-256 84d77ced076d0bfd…

MALICIOUS

PDF

40.6 KB Authoring application: Adobe PDF Library 9.0
MD5: 43d07ae960576f90f3de190ba8db832e SHA-1: eb028f8a80b8ae1bb20f054ed9e56d95ca4fd8d1 SHA-256: 84d77ced076d0bfd8a87a6dac4969b8c6f48ab86ae1266f31a27a2c690c76801
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute malware. ClamAV detected this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', and a machine learning classifier also flagged it with high confidence. The document body, while containing some seemingly legitimate text, also includes these URLs, reinforcing the malicious intent.

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://mmarieboutique.com/uploads/1/3/0/6/130639404/jowowufavewalil-bemovugowidasu-nimitinux-renoxukipik.pdf
    • http://miller-ssg.com/uploads/1/3/0/6/130603906/d02a50ec.pdf
    • http://alchemyperfume.com/uploads/1/3/0/7/130740357/7736297.pdf
    • http://workplaceptsdrecovery.com/uploads/1/3/0/3/130323180/cec9ec98.pdf
    • http://rufov.formacion-psicosocial.com/uploads/2020/01/29/nazuxufo_dapoto_wemimowazukirub_titaruweneb.pdf
    • http://chrisbrooksarchitecture.com/uploads/1/3/0/6/130639087/fipemivufetowulido.pdf
    • http://foothillsbiblefellowship.com/uploads/1/3/0/4/130488759/130488759.html#nobody+casting+crowns+sheet+music+pdf
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000119a.bin
bf58b27623eb543c68d7b295d89e3c62597cd856ea27ac9e948dee62a13c85b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x119A 8704 bytes
font_01_sfnt_off0000577a.bin
cee20ccf82882c8704d85382fa62fac4ebe3bb17ea7330ca43479e13bdb041a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x577A 16272 bytes

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