Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2a90b636ec1a2da…

MALICIOUS

PDF

59.8 KB Authoring application: Pdftk
MD5: cac55dcc2ab2916ac6eddc59c933033b SHA-1: 4fefc8ddbc5ad614f8d08a4a4276ea5fdaad265a SHA-256: c2a90b636ec1a2daa486b413b1e1209ea05617877895a397961637a484799aa6
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of embedded URLs pointing to other PDF documents, a technique commonly used for SEO poisoning or to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs are the primary indicators of compromise, suggesting a redirection or phishing attack.

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://promarkpaintingservice.com/uploads/1/3/0/4/130483614/46237.pdf
    • http://mistressblake.net/uploads/1/3/0/6/130603975/kizodeminivapegimi.pdf
    • http://nwspecialtylumbermill.com/uploads/1/3/0/6/130639318/c0b78308162a9a.pdf
    • http://armymodels.weebly.com/uploads/1/3/0/6/130639664/lurikiwop_kitutujasug_bukaje_fozabe.pdf
    • http://robinjoyphotography.net/uploads/1/3/0/2/130288563/pasexilepifeb.pdf
    • http://alpharettapestpros.com/uploads/1/3/0/6/130639506/215062.pdf
    • http://btctree.net/uploads/1/3/0/6/130640194/9067558.pdf
    • http://disabilitymanagmentsolutions.ca/uploads/1/3/0/3/130313404/waxuwoxag_wijafamoxevokob.pdf
    • http://iehospitalitygroup.com/uploads/1/3/0/2/130289565/seripurefetarevo.pdf
    • http://tobiawoyemiministries.com/uploads/1/3/0/6/130639845/5779236.pdf
    • http://mythicarmory.com/uploads/1/3/0/5/130542831/tasowovexirowe.pdf
    • http://rapidrefillsantacruz.com/uploads/1/3/0/3/130323957/130323957.html#la+mulana+2+steam+guide

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013c2.bin
3924b347529b88d9600267462217ad21804ac8d4cd3c9926ea4c26a5ce0b9fd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13C2 8656 bytes

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