Overview

overview

9

Static

static

3

IronChain.exe

windows10-2004-x64

9

IronChain.exe

windows10-ltsc_2021-x64

9

IronChain.exe

windows11-21h2-x64

9

IronChain.exe

windows11-ltsc_2024-x64

9

Sharing

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General

  • Target
    IronChain.exe
  • Size 16.9MB
  • Sample261024-sfw1cact6p
  • SHA256 e2764e9380b6cd1765bcd581dec448c3f1c9d0be46650f67cb856c3ff51d8341
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
defense_evasiondiscoveryevasionexecutionexploitimpactpersistenceprivilege_escalationpyinstallerransomware

Malware Config

Targets

    • Target
      IronChain.exe
    • Size 16.9MB
    • SHA256 e2764e9380b6cd1765bcd581dec448c3f1c9d0be46650f67cb856c3ff51d8341
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    9/10
    defense_evasiondiscoveryevasionexecutionimpactpersistenceprivilege_escalationpyinstallerransomwareexploit

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Modifies Windows Firewall

      defense_evasion

    • Possible privilege escalation attempt

      exploit

    • Creates new service(s)

      persistenceexecution

    • Disables service(s)

      defense_evasionexecution

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Stops running service(s)

      defense_evasionexecution

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

      discovery

    • Discovers running processes

      Running process information can be used to identify security tools or plan follow-on actions.

      discovery

    • Drops file in System32 directory

    • Executes a VBScript file via the Windows Script Host.

      execution
    behavioral1behavioral2behavioral3behavioral4

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

4
T1059

PowerShell

1
T1059.001

Visual Basic

1
T1059.005

Windows Command Shell

1
T1059.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

System Services

3
T1569

Service Execution

3
T1569.002

Windows Management Instrumentation

1
T1047

Persistence

Create or Modify System Process

4
T1543

Windows Service

4
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Create or Modify System Process

4
T1543

Windows Service

4
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Direct Volume Access

1
T1006

File and Directory Permissions Modification

1
T1222

Impair Defenses

2
T1562

Disable or Modify System Firewall

1
T1562.004

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Process Discovery

1
T1057

Query Registry

2
T1012

Remote System Discovery

1
T1018

System Information Discovery

1
T1082

System Network Configuration Discovery

3
T1016

Internet Connection Discovery

2
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

4
T1490

Service Stop

2
T1489

Tasks