Overview

overview

9

Static

static

1

MEmu-setup...f6.exe

windows11-21h2-x64

9

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General

  • Target

    MEmu-setup-abroad-07ea07f6.exe

  • Size

    136.7MB

  • Sample

    250111-17dbbavkcn

  • MD5

    b49f6bf83d55d8dd1455cc7a0383c0d2

  • SHA1

    bfb396d0605e31b385c7d2b85da36ef86129fb8c

  • SHA256

    07ea07f69e3b0765fd22dd87d9919dd3aa322bbaaba725c35b6c087e6718d869

  • SHA512

    208e98c0e3c4f85beb81bc04900baf0ada2ee7e7e9b8eaee5894557599067e6bd363fef5501a237bcf255da8557f5745119c021d918a6539fa0620bae2e6c60a

  • SSDEEP

    3145728:YhbFu8Q+I+MeooQsFecmasI8xTcawkYb+WsqAJnWJA7PUW:Y+EdnsI8Nct4nsWUW

Score
9/10
bootkitdiscoveryevasionpersistenceprivilege_escalationransomwarespywarestealer

Malware Config

Targets

    • Target

      MEmu-setup-abroad-07ea07f6.exe

    • Size

      136.7MB

    • MD5

      b49f6bf83d55d8dd1455cc7a0383c0d2

    • SHA1

      bfb396d0605e31b385c7d2b85da36ef86129fb8c

    • SHA256

      07ea07f69e3b0765fd22dd87d9919dd3aa322bbaaba725c35b6c087e6718d869

    • SHA512

      208e98c0e3c4f85beb81bc04900baf0ada2ee7e7e9b8eaee5894557599067e6bd363fef5501a237bcf255da8557f5745119c021d918a6539fa0620bae2e6c60a

    • SSDEEP

      3145728:YhbFu8Q+I+MeooQsFecmasI8xTcawkYb+WsqAJnWJA7PUW:Y+EdnsI8Nct4nsWUW

    Score
    9/10
    bootkitdiscoveryevasionpersistenceprivilege_escalationransomwarespywarestealer

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Drops file in Drivers directory

    • Downloads MZ/PE file

    • Enumerates connected drives

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Drops file in System32 directory

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

      persistenceprivilege_escalation
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1
T1546

Component Object Model Hijacking

1
T1546.015

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Event Triggered Execution

1
T1546

Component Object Model Hijacking

1
T1546.015

Defense Evasion

Modify Registry

1
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

3
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

1
T1490

Tasks