Overview

overview

10

Static

static

3

MrsMajor2.0.exe

windows10-1703-x64

Sharing

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General

  • Target
    MrsMajor2.0.exe
  • Size 25.6MB
  • Sample240706-sm4nrsscll
  • SHA256 5dd4ea169cabf9226f54bb53e63ea6a1b5880a0d1222242aee378efb6255b57d
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
discoveryevasionexploitpersistencetrojan

Malware Config

Targets

    • Target
      MrsMajor2.0.exe
    • Size 25.6MB
    • SHA256 5dd4ea169cabf9226f54bb53e63ea6a1b5880a0d1222242aee378efb6255b57d
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    discoveryevasionexploitpersistencetrojan

    • Modifies WinLogon for persistence

      persistence

    • UAC bypass

      evasiontrojan

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • Possible privilege escalation attempt

      exploit

    • Executes dropped EXE

    • Modifies file permissions

      discovery

    • Modifies system executable filetype association

      persistence

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

File and Directory Permissions Modification

1
T1222

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

5
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks