Overview

overview

10

Static

static

7

0dd34e1326...da.exe

windows10-2004-x64

10

0dd34e1326...da.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    96dce9c6bbd0e2f156408e1e1adb7223d8748825fae80b966e80a2b34027aad1
  • Size 2.3MB
  • Sample260812-rqqewaygmc
  • SHA256 96dce9c6bbd0e2f156408e1e1adb7223d8748825fae80b966e80a2b34027aad1
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
medusalockercredential_accessdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealerthemidatrojan

Malware Config

Targets

    • Target
      0dd34e1326f18ab113be5ec91003577845f62ce25bbed8f92bff0b4077fe45da.exe
    • Size 2.5MB
    • SHA256 0dd34e1326f18ab113be5ec91003577845f62ce25bbed8f92bff0b4077fe45da
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    credential_accessdefense_evasiondiscoveryevasionexecutionmedusalockerimpactpersistenceransomwarespywarestealerthemidatrojan

    • Family: MedusaLocker

      Ransomware with several variants first seen in September 2019.

      ransomwaremedusalocker

    • MedusaLocker payload

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      defense_evasion

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (1175) 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

    • Drops file in Drivers directory

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

      defense_evasion

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Direct Volume Access

1
T1006

Indicator Removal

4
T1070

File Deletion

4
T1070.004

Modify Registry

2
T1112

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials from Password Stores

2
T1555

Credentials from Web Browsers

1
T1555.003

Windows Credential Manager

1
T1555.004

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

4
T1012

System Information Discovery

5
T1082

Virtualization/Sandbox Evasion

1
T1497

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

4
T1490

Tasks