Overview

overview

10

Static

static

3

install_sint017.exe

windows10-2004-x64

10

install_sint017.exe

windows11-ltsc_2024-x64

8

Sharing

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General

  • Target
    c4bbacf41e6ddf168fa9d83aadc25fd5f3c4e0b1769a33f6b5f0a6d129e028d1
  • Size 3.3MB
  • Sample260814-bcfqhssbkc
  • SHA256 c4bbacf41e6ddf168fa9d83aadc25fd5f3c4e0b1769a33f6b5f0a6d129e028d1
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasionexecutionpersistencetrojan

Malware Config

Targets

    • Target
      install_sint017.exe
    • Size 40.7MB
    • SHA256 2c4bed2cb50a9288c684ef38baec78b288889b6566bb118d0325375104852ce8
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasionexecutionpersistencetrojan

    • Windows security bypass

      defense_evasiontrojan

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Indicator Removal: Clear Persistence

      Clear artifacts associated with previously established persistence like scheduletasks on a host.

      defense_evasion

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

1
T1059.001

Windows Command Shell

1
T1059.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Indicator Removal

1
T1070

Clear Persistence

1
T1070.009

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks