Overview

overview

10

Static

static

5

39e6a32ee2...39.exe

windows7-x64

10

39e6a32ee2...39.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    39e6a32ee280960f6e4e2d4e38fb25e96ae8f5bd163bafb8ffeab87e2216e639.exe
  • Size 11.9MB
  • Sample240821-btybwstbrb
  • SHA256 39e6a32ee280960f6e4e2d4e38fb25e96ae8f5bd163bafb8ffeab87e2216e639
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
rmsxmrigaspackv2defense_evasiondiscoveryevasionexecutionlateral_movementminerpersistenceprivilege_escalationrattrojanupx

Malware Config

Targets

    • Target
      39e6a32ee280960f6e4e2d4e38fb25e96ae8f5bd163bafb8ffeab87e2216e639.exe
    • Size 11.9MB
    • SHA256 39e6a32ee280960f6e4e2d4e38fb25e96ae8f5bd163bafb8ffeab87e2216e639
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    rmsaspackv2defense_evasiondiscoveryevasionexecutionlateral_movementpersistenceprivilege_escalationrattrojanupxxmrigminer

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • RMS

      Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.

      trojanratrms

    • UAC bypass

      evasiontrojan

    • Windows security bypass

      evasiontrojan

    • XMRig Miner payload

      miner

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

      minerxmrig

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Remote Service Session Hijacking: RDP Hijacking

      Adversaries may hijack a legitimate user's remote desktop session to move laterally within an environment.

      lateral_movement

    • Blocks application from running via registry modification

      Adds application to list of disallowed applications.

      evasion

    • Drops file in Drivers directory

    • Modifies Windows Firewall

      evasion

    • Server Software Component: Terminal Services DLL

      persistence

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • Stops running service(s)

      evasionexecution

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

      aspackv2

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • 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

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Modifies WinLogon

      persistence

    • Password Policy Discovery

      Attempt to access detailed information about the password policy used within an enterprise network.

      discovery

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Hide Artifacts: Hidden Users

      defense_evasion
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Account Manipulation

1
T1098

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

3
T1543

Windows Service

3
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Server Software Component

1
T1505

Terminal Services DLL

1
T1505.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Account Manipulation

1
T1098

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

3
T1543

Windows Service

3
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

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

File and Directory Permissions Modification

1
T1222

Hide Artifacts

4
T1564

Hidden Files and Directories

3
T1564.001

Hidden Users

1
T1564.002

Impair Defenses

5
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

3
T1562.001

Indicator Removal

1
T1070

Clear Persistence

1
T1070.009

Modify Registry

7
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Discovery

Password Policy Discovery

1
T1201

Permission Groups Discovery

1
T1069

Local Groups

1
T1069.001

Query Registry

2
T1012

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Remote Service Session Hijacking

1
T1563

RDP Hijacking

1
T1563.002

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Service Stop

1
T1489

Tasks