Malicious PDF — malware analysis report

Static analysis result for SHA-256 33552bddbfb3df17…

MALICIOUS

PDF

34.9 KB Authoring application: SWFTools
MD5: 2e285f6ea095731d71a5455568481d97 SHA-1: fd452ad2c85d12e16de4fc768f1036532fe5e0d1 SHA-256: 33552bddbfb3df177869637f92ac502831baa770ae13e6fa05072752bcc232d5
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566 Phishing T1204 Malicious Link T1059.001 PowerShell

The PDF contains a large number of embedded links pointing to external PDF files, a technique commonly used for SEO poisoning or phishing lures. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded links likely lead to further stages of an attack, such as credential harvesting or malware delivery.

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://diku.cityglush7.icu/uploads/2020/01/27/3169b61f5002.pdf
    • http://durop.svyazexpo-online.ru/uploads/2020/01/28/gesaxiwiz.pdf
    • http://jungomusicproductions.com/uploads/1/3/0/4/130489025/614d4f.pdf
    • http://dream-boxxx.ru/uploads/2020/01/29/tapebisefatazu_jaboxodori_kobonowob.pdf
    • http://giw.autogost.com/uploads/2020/01/29/duseb.pdf
    • http://kreativejeanius.org/uploads/1/3/0/4/130483407/e7cc1b074496.pdf
    • http://milkywayshirt.com/uploads/1/3/0/4/130475936/130475936.html#attestation+de+stage+exemple+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000111a.bin
a8928eaa7890c9bae8c3d9cc0290b00d8d9f8a23fac6d37475f7f015b0ae4a2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x111A 9068 bytes

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