Overview

overview

10

Static

static

3

trmm-neiki...64.exe

windows7-x64

1

trmm-neiki...64.exe

windows10-2004-x64

10

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General

  • Target

    trmm-neikidevsample-9999999-workstation-amd64.exe

  • Size

    5.0MB

  • Sample

    241030-k3a3ds1pek

  • MD5

    81bc685e9b7e4bcf7185eac59e2901e7

  • SHA1

    ebba28483efdc16cb870b09856d55864860c659f

  • SHA256

    3d6ee168d49bd9c82988eef0860603919dba039444c31730087903158a946f1f

  • SHA512

    8eaffc811e9c0e837808fea07e994cac7dfe6fea90771ea74c8003b4176669b3c35db307fa14ccb0e3a755a0b5ef2f45c3af6fff0d37bdc77af8150ae55b4926

  • SSDEEP

    49152:CwHdjznTzM1AxDsrb/T8vO90d7HjmAFd4A64nsfJ4h6z81LMiGBK1AdVc3mYerzC:lTzM1AxhuoEV6mzNSTE3+ew

Score
10/10
meshagenttacticalrmmbackdoordiscoveryevasionexecutionpersistenceprivilege_escalationrattrojan

Malware Config

Extracted

Family

meshagent

Version

2

Botnet

TacticalRMM

C2

http://mesh.jerdal.no:443/agent.ashx

Attributes
  • mesh_id

    0x863E3F134F81661620D5D7CA84DC0FFA78FE66C04B55145E8AB95232EF503881FE674FAD824291D8F99FFC4AAD5E3A5A

  • server_id

    59FEA6FF717CF6689C711668622EE09D24C49DD1C2C6945137ACBC5B4318CDC91B13297BC869E05BB9D046F8748845D7

  • wss

    wss://mesh.jerdal.no:443/agent.ashx

Targets

    • Target

      trmm-neikidevsample-9999999-workstation-amd64.exe

    • Size

      5.0MB

    • MD5

      81bc685e9b7e4bcf7185eac59e2901e7

    • SHA1

      ebba28483efdc16cb870b09856d55864860c659f

    • SHA256

      3d6ee168d49bd9c82988eef0860603919dba039444c31730087903158a946f1f

    • SHA512

      8eaffc811e9c0e837808fea07e994cac7dfe6fea90771ea74c8003b4176669b3c35db307fa14ccb0e3a755a0b5ef2f45c3af6fff0d37bdc77af8150ae55b4926

    • SSDEEP

      49152:CwHdjznTzM1AxDsrb/T8vO90d7HjmAFd4A64nsfJ4h6z81LMiGBK1AdVc3mYerzC:lTzM1AxhuoEV6mzNSTE3+ew

    Score
    10/10
    meshagenttacticalrmmbackdoordiscoveryevasionexecutionpersistenceprivilege_escalationrattrojan

    • Detects MeshAgent payload

    • MeshAgent

      MeshAgent is an open source remote access trojan written in C++.

      rattrojanbackdoormeshagent

    • Meshagent family

      meshagent

    • Blocklisted process makes network request

    • Modifies Windows Firewall

      evasion

    • Sets service image path in registry

      persistence

    • Stops running service(s)

      evasionexecution

    • Executes dropped EXE

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Power Settings

1
T1653

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

2
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Discovery

Query Registry

1
T1012

Remote System Discovery

1
T1018

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1
T1489

Tasks