IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Execution of File Written or Modified by PDF Reader
editExecution of File Written or Modified by PDF Reader
editIdentifies a suspicious file that was written by a PDF reader application and subsequently executed. These processes are often launched via exploitation of PDF applications.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
- winlogbeat-*
- logs-windows.*
Severity: high
Risk score: 21
Runs every: 60 minutes
Searches indices from: now-120m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Execution
Version: 4 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 7.14.0
Rule authors: Elastic
Rule license: Elastic License v2
Rule query
editsequence with maxspan=2h [file where event.type != "deletion" and
file.extension : "exe" and (process.name : "AcroRd32.exe" or
process.name : "rdrcef.exe" or process.name :
"FoxitPhantomPDF.exe" or process.name : "FoxitReader.exe") and
not (file.name : "FoxitPhantomPDF.exe" or file.name :
"FoxitPhantomPDFUpdater.exe" or file.name :
"FoxitReader.exe" or file.name : "FoxitReaderUpdater.exe" or
file.name : "AcroRd32.exe" or file.name : "rdrcef.exe") ]
by host.id, file.path [process where event.type in ("start",
"process_started")] by host.id, process.executable
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
-
Tactic:
- Name: Initial Access
- ID: TA0001
- Reference URL: https://attack.mitre.org/tactics/TA0001/
-
Technique:
- Name: Phishing
- ID: T1566
- Reference URL: https://attack.mitre.org/techniques/T1566/
Rule version history
edit- Version 4 (7.14.0 release)
-
- Formatting only
- Version 3 (7.12.0 release)
-
- Formatting only
- Version 2 (7.11.0 release)
-
- Formatting only