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Overview

overview

10

Static

static

7

4b62450e0d...18.exe

windows7-x64

10

4b62450e0d...18.exe

windows10-2004-x64

8

Sharing

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General

  • Target

    4b62450e0d5c4baf54a6d2bf82640e18

  • Size

    67KB

  • Sample

    240108-n8bsnaacf2

  • MD5

    4b62450e0d5c4baf54a6d2bf82640e18

  • SHA1

    c355bd0767be42aef88fbe4b33348ca767f9af11

  • SHA256

    3a4cfef0dd9bf37f93a93d978cc9c0a12fe4235d4d3e5507c7bf4777c5a33348

  • SHA512

    9036cd6b6225c268c30a68c659d52852159b3d0c7742bf664e7a7e76381a1fe45143832b1916f862034d03f18e04181973a207c3aa677ca42bb093afecadd897

  • SSDEEP

    1536:k7OE59Vyzrc8K3WgFtKhJP+tcrVOXKzaJThZfaKhQiSEKNJJ:yV5998K3WQ8fjEXKgZfnhfxuJ

Score
10/10
evasionpersistenceransomwaretrojanupx

Malware Config

Targets

    • Target

      4b62450e0d5c4baf54a6d2bf82640e18

    • Size

      67KB

    • MD5

      4b62450e0d5c4baf54a6d2bf82640e18

    • SHA1

      c355bd0767be42aef88fbe4b33348ca767f9af11

    • SHA256

      3a4cfef0dd9bf37f93a93d978cc9c0a12fe4235d4d3e5507c7bf4777c5a33348

    • SHA512

      9036cd6b6225c268c30a68c659d52852159b3d0c7742bf664e7a7e76381a1fe45143832b1916f862034d03f18e04181973a207c3aa677ca42bb093afecadd897

    • SSDEEP

      1536:k7OE59Vyzrc8K3WgFtKhJP+tcrVOXKzaJThZfaKhQiSEKNJJ:yV5998K3WQ8fjEXKgZfnhfxuJ

    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