Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b4735f443c5ee94…

MALICIOUS

PDF

47.0 KB Authoring application: Solid Converter PDF
MD5: 02eb38cfe9d406ad54949c91d7b151da SHA-1: 327167b6c4aa502f54e9f81c7c4807058a1c58ca SHA-256: 0b4735f443c5ee94021a36b0e9274e2ad986b65f640c23a8d5772e28ac0a26f6
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a common technique for SEO poisoning and phishing. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as 'Pdf.Phishing.TtraffRobotInstall'. 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://phillypiattorneys.com/uploads/1/3/0/2/130272250/6479436.pdf
    • http://meat-taffy.org/uploads/1/3/0/7/130739016/f05589512f.pdf
    • http://nickmilne.com/uploads/1/3/0/6/130604934/gasasirunovejita.pdf
    • http://bethlauzier.com/uploads/1/3/0/7/130775320/baketo.pdf
    • http://cpanel.melsellsparadise.com/uploads/1/3/0/2/130288421/zixalixum-fubesikabisaf.pdf
    • http://www.xsoft.dev/uploads/1/3/0/6/130620505/mibedufirezika.pdf
    • http://cubiocloud.com/uploads/1/3/0/6/130604556/rewenowadotum_bojek.pdf
    • http://snippies.org/uploads/1/3/0/2/130272557/zuraxudekinuxix.pdf
    • http://oversightcloud.net/uploads/1/3/0/3/130313106/e44c7c8e2c.pdf
    • http://jazzcreativestudio.com/uploads/1/3/0/8/130873921/vewud.pdf
    • http://8t2u0.salon225.com/uploads/1/3/0/6/130621405/130621405.html#how+to+build+a+wind+turbine+generator

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061ab.bin
4bb8795df3a89d67e3d6ede97603b6ac6cda48b270c149bd3c855601779e186d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61AB 8444 bytes

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