General

  • Target

    a3c0c493ce3824dc77c342eccbc0cec9633e8c183e7c976b7103ce8445b33b59

  • Size

    145KB

  • Sample

    240614-ckf7pa1fnh

  • MD5

    df4209842d006b123314b9f213d180e5

  • SHA1

    fed0674f0ef0d86b3179bd8acc5464c6be294612

  • SHA256

    a3c0c493ce3824dc77c342eccbc0cec9633e8c183e7c976b7103ce8445b33b59

  • SHA512

    ab082cf90ccbb499858fa08fc17cfb69e9f09b0afd170d88c6f0de367bd8828deeb739b1a02b6deeaba5e385342447de9cb7fbc9c7edf919b27136f3fbd08003

  • SSDEEP

    1536:vJo0IHgL2AHfb1mzaFXg+xsukl4Y17jsgS/jHagQNuXGpeVTV:Bx6AHjYzaFXg+w17jsgS/jHagQg19V

Malware Config

Targets

    • Target

      a3c0c493ce3824dc77c342eccbc0cec9633e8c183e7c976b7103ce8445b33b59

    • Size

      145KB

    • MD5

      df4209842d006b123314b9f213d180e5

    • SHA1

      fed0674f0ef0d86b3179bd8acc5464c6be294612

    • SHA256

      a3c0c493ce3824dc77c342eccbc0cec9633e8c183e7c976b7103ce8445b33b59

    • SHA512

      ab082cf90ccbb499858fa08fc17cfb69e9f09b0afd170d88c6f0de367bd8828deeb739b1a02b6deeaba5e385342447de9cb7fbc9c7edf919b27136f3fbd08003

    • SSDEEP

      1536:vJo0IHgL2AHfb1mzaFXg+xsukl4Y17jsgS/jHagQNuXGpeVTV:Bx6AHjYzaFXg+w17jsgS/jHagQg19V

    • Modifies WinLogon for persistence

    • Modifies visibility of file extensions in Explorer

    • Modifies visiblity of hidden/system files in Explorer

    • UAC bypass

    • Disables RegEdit via registry modification

    • Disables use of System Restore points

    • Drops file in Drivers directory

    • Sets file execution options in registry

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Replication Through Removable Media

1
T1091

Persistence

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Defense Evasion

Modify Registry

9
T1112

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

Remote System Discovery

1
T1018

Lateral Movement

Replication Through Removable Media

1
T1091

Impact

Inhibit System Recovery

1
T1490

Defacement

1
T1491

Tasks