Malicious PDF — malware analysis report

Static analysis result for SHA-256 eddc7b42fe535a5e…

MALICIOUS

PDF

42.5 KB Authoring application: Scribus
MD5: 38d72fd6daa145c69455c4a17f7bd0e1 SHA-1: 71eb165e2997d42a0a78e6d3053394c8602e688c SHA-256: eddc7b42fe535a5e80454af8b92e3388ba136d8912e4949d92d9df419ac832ad
150 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a common technique for SEO poisoning and phishing lures. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the heuristic 'PDF_SEO_LINK_FARM' strongly indicate a phishing or malicious redirection campaign. The embedded URLs are likely used to redirect users to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://communitiesfordemocracy.com/uploads/1/3/0/6/130605349/fuzejixut.pdf
    • http://boguxex.katerinariazanova.ru/uploads/2020/01/28/sobagafirapom_fikiduva_rijasi_kovobenetoz.pdf
    • http://nolababybump.com/uploads/1/3/0/6/130639244/d2142.pdf
    • http://masstechlaw.net/uploads/1/3/0/5/130540799/dafataxokobiwer-lisok.pdf
    • http://absystemsllcscam.com/uploads/1/3/0/4/130488946/130488946.html#terraria+actuator+guide

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001080.bin
47db88f0201b668e814a9bfffdf394da4d0769f04ea20c814336449abfcce544		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1080 8064 bytes
font_01_sfnt_off00006063.bin
1a48559509f7f75063a877bee3d72c2f3225c728dd953cebf65f9a5167f6cbd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6063 16036 bytes

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