Overview

overview

10

Static

static

3

Optimizer.exe

windows10-2004-x64

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General

  • Target

    Optimizer.exe

  • Size

    2.3MB

  • Sample

    241011-1tl2aswcna

  • MD5

    be3acdfb13e900b494aff01ac2fe3f2b

  • SHA1

    26077a1d80d44ec2012d85c33a5593834bb41879

  • SHA256

    2839b3e6f7bd5b3f530c2c4283ca5b16f6231358660a3ac05066fd432eab9bc9

  • SHA512

    b76e0948ccd4073792de6406fe66c332d54c1d03bb5435a1594bc85f1a15a73c497ef47ff55e2c343f7f765ac3c75ba941e8f7705275e8740278797816b89b27

  • SSDEEP

    24576:Em/7qyOl3F46cUMO34u+EC8vJ6qWwiBjk38WuBcAbwoA/BkjSHXP36RMG:dzqyOl3F46cUuEC8vYqWwiCSA/Bkj0

Score
10/10
defense_evasiondiscoveryevasionexecutionimpactpersistenceransomware

Malware Config

Targets

    • Target

      Optimizer.exe

    • Size

      2.3MB

    • MD5

      be3acdfb13e900b494aff01ac2fe3f2b

    • SHA1

      26077a1d80d44ec2012d85c33a5593834bb41879

    • SHA256

      2839b3e6f7bd5b3f530c2c4283ca5b16f6231358660a3ac05066fd432eab9bc9

    • SHA512

      b76e0948ccd4073792de6406fe66c332d54c1d03bb5435a1594bc85f1a15a73c497ef47ff55e2c343f7f765ac3c75ba941e8f7705275e8740278797816b89b27

    • SSDEEP

      24576:Em/7qyOl3F46cUMO34u+EC8vJ6qWwiBjk38WuBcAbwoA/BkjSHXP36RMG:dzqyOl3F46cUuEC8vYqWwiCSA/Bkj0

    Score
    10/10
    defense_evasiondiscoveryevasionexecutionimpactpersistenceransomware

    • Disables service(s)

      evasionexecution

    • Modifies visibility of file extensions in Explorer

      evasion

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Disables use of System Restore points

      evasion

    • Event Triggered Execution: Image File Execution Options Injection

      persistence

    • Stops running service(s)

      evasionexecution

    • Checks computer location settings

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

    • Modifies file permissions

      discovery

    • Legitimate hosting services abused for malware hosting/C2

    • 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
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

2
T1569

Service Execution

2
T1569.002

Windows Management Instrumentation

1
T1047

Persistence

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Image File Execution Options Injection

1
T1546.012

Power Settings

1
T1653

Privilege Escalation

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Image File Execution Options Injection

1
T1546.012

Defense Evasion

Direct Volume Access

1
T1006

File and Directory Permissions Modification

1
T1222

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Impair Defenses

2
T1562

Disable or Modify Tools

1
T1562.001

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

4
T1112

Credential Access

Discovery

Browser Information Discovery

1
T1217

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Inhibit System Recovery

3
T1490

Service Stop

2
T1489

Tasks