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Overview

overview

10

Static

static

7

5a6773f4b0...e5.exe

windows7-x64

10

5a6773f4b0...e5.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    5a6773f4b0ef8fa2c936e7e10c9e4ce5

  • Size

    67KB

  • Sample

    240114-f58n8acghl

  • MD5

    5a6773f4b0ef8fa2c936e7e10c9e4ce5

  • SHA1

    d06db69a642e0dbbabd05ecf01baf34e5d5fdb7c

  • SHA256

    3d8286cdbd2fa89626de935fd278ae5c0f80198c9c7ba342e4c7c203651a8ae9

  • SHA512

    69f5309f8a52dec6698493fb9d900a155bc417eabfb991acabdec386de306ecbab5788f867fc732a4057d0379faa6e671be52e772e0eec9ac4d57a3ecd6b76d3

  • SSDEEP

    1536:/7OE59Vyzrc8K3WgFtKhJP+tcrVOXKzaJThZfaKhQiSEKNJh:jV5998K3WQ8fjEXKgZfnhfxuh

Score
10/10
evasionpersistenceransomwaretrojanupx

Malware Config

Targets

    • Target

      5a6773f4b0ef8fa2c936e7e10c9e4ce5

    • Size

      67KB

    • MD5

      5a6773f4b0ef8fa2c936e7e10c9e4ce5

    • SHA1

      d06db69a642e0dbbabd05ecf01baf34e5d5fdb7c

    • SHA256

      3d8286cdbd2fa89626de935fd278ae5c0f80198c9c7ba342e4c7c203651a8ae9

    • SHA512

      69f5309f8a52dec6698493fb9d900a155bc417eabfb991acabdec386de306ecbab5788f867fc732a4057d0379faa6e671be52e772e0eec9ac4d57a3ecd6b76d3

    • SSDEEP

      1536:/7OE59Vyzrc8K3WgFtKhJP+tcrVOXKzaJThZfaKhQiSEKNJh:jV5998K3WQ8fjEXKgZfnhfxuh

    Score
    10/10
    evasionpersistenceransomwaretrojanupx

    • Modifies WinLogon for persistence

      persistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Disables RegEdit via registry modification

      evasion

    • Disables use of System Restore points

      evasion

    • Drops file in Drivers directory

    • Sets file execution options in registry

      persistence

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • 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

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

9
T1112

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

1
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

1
T1490

Tasks