Overview

overview

10

Static

static

3

1.exe

windows7-x64

10

1.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    1.exe
  • Size 2.6MB
  • Sample240522-l6smaabd47
  • SHA256 1280eee88bc188622bceadd8a427c5f5e242ddfd175c378b3d828e5e7a0d66ca
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
mimicevasionexecutionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target
      1.exe
    • Size 2.6MB
    • SHA256 1280eee88bc188622bceadd8a427c5f5e242ddfd175c378b3d828e5e7a0d66ca
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    mimicevasionexecutionpersistenceransomwarespywarestealertrojan

    • Detects Mimic ransomware

    • Mimic

      Ransomware family was first exploited in the wild in 2022.

      ransomwaremimic

    • Modifies security service

      evasion

    • UAC bypass

      evasiontrojan

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (6323) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Deletes System State backups

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Sets file execution options in registry

      persistence

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

      persistence

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Enumerates connected drives

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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

1
T1059.001

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Indicator Removal

1
T1070

File Deletion

1
T1070.004

Modify Registry

7
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

2
T1120

Query Registry

4
T1012

System Information Discovery

5
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2
T1490

Tasks