Overview

overview

9

Static

static

9

EXM-2.1.1-...er.exe

windows10-2004-x64

9

EXM-2.1.1-...er.exe

windows11-ltsc_2024-x64

9

Sharing

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General

  • Target
    EXM-2.1.1-installer.exe
  • Size 147.1MB
  • Sample260716-bbvs2shx8p
  • SHA256 4063c69bfbcc58bda796a349ea387a7a636cfa63be133df3eefaae162b1fb505
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
defense_evasiondiscoveryexecution

Malware Config

Targets

    • Target
      EXM-2.1.1-installer.exe
    • Size 147.1MB
    • SHA256 4063c69bfbcc58bda796a349ea387a7a636cfa63be133df3eefaae162b1fb505
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    9/10
    defense_evasiondiscoveryexecution

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Stops running service(s)

      defense_evasionexecution

    • Checks installed software on the system

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

      discovery

    • Drops desktop.ini file(s)

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

      defense_evasion

    • Modifies boot configuration data using bcdedit

    • ConfuserEx .NET packer

      Detects ConfuserEx .NET packer.

    • Drops file in System32 directory

    • Enumerates processes with tasklist

      discovery
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

2
T1059.001

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Hide Artifacts

1
T1564

Ignore Process Interrupts

1
T1564.011

Impair Defenses

1
T1562

Indicator Removal

1
T1070

File Deletion

1
T1070.004

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Process Discovery

1
T1057

Query Registry

5
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1
T1489

Tasks