Overview

overview

10

Static

static

3

Optimizer.exe

windows7-x64

1

Optimizer.exe

windows10-2004-x64

10

Resubmissions

11-05-2024 09:02

240511-kzzatadb68 10

11-05-2024 09:00

240511-kyawtsac91 3

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General

  • Target

    Optimizer.exe

  • Size

    2.4MB

  • Sample

    240511-kzzatadb68

  • MD5

    cc4ed359031db8b3816f280a0cbda217

  • SHA1

    537f393978f91eef2ac22ce82ee1b2f9c6dd2d72

  • SHA256

    26c64c2fafcd264b8130462ff6e40a6498ec6937fe95d5e83964388ae9597c4d

  • SHA512

    e443b5cb8b86a919a800825204624b651b5196e043d83529014625d7e161a6f7a6083857d2415eaa6293cf312389fbf39ea9a338307e8270dcc4812136e84077

  • SSDEEP

    24576:S2mofuHtzyxlMOlJv8EC8KJWGlF+Bjk38WuBcAbwoA/BkjSHXP36RMG:S2msuHtzyxl+EC8KoVCSA/Bkj0

Score
10/10
defense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      Optimizer.exe

    • Size

      2.4MB

    • MD5

      cc4ed359031db8b3816f280a0cbda217

    • SHA1

      537f393978f91eef2ac22ce82ee1b2f9c6dd2d72

    • SHA256

      26c64c2fafcd264b8130462ff6e40a6498ec6937fe95d5e83964388ae9597c4d

    • SHA512

      e443b5cb8b86a919a800825204624b651b5196e043d83529014625d7e161a6f7a6083857d2415eaa6293cf312389fbf39ea9a338307e8270dcc4812136e84077

    • SSDEEP

      24576:S2mofuHtzyxlMOlJv8EC8KJWGlF+Bjk38WuBcAbwoA/BkjSHXP36RMG:S2msuHtzyxl+EC8KoVCSA/Bkj0

    Score
    10/10
    defense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealer

    • 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

    • Sets file execution options in registry

      persistence

    • Stops running service(s)

      evasionexecution

    • Checks computer location settings

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

    • Modifies file permissions

      discovery

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

System Services

2
T1569

Service Execution

2
T1569.002

Windows Management Instrumentation

1
T1047

Command and Scripting Interpreter

1
T1059

Persistence

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

3
T1112

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Impair Defenses

2
T1562

Disable or Modify Tools

1
T1562.001

File and Directory Permissions Modification

1
T1222

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Service Stop

2
T1489

Inhibit System Recovery

3
T1490

Resource Development

Reconnaissance

Tasks