Overview

overview

10

Static

static

3

KRNL-bootstrapper.exe

windows11-21h2-x64

10

Resubmissions

04-12-2024 17:07

241204-vm58psxmdq 10

04-12-2024 15:27

241204-sv327svmfj 10

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General

  • Target

    KRNL-bootstrapper.exe

  • Size

    13.2MB

  • Sample

    241204-vm58psxmdq

  • MD5

    5c14e347317a51194b82ef0855e26e3b

  • SHA1

    77fb645077b717acfb78dee36371a04976b26e2c

  • SHA256

    e0aca3445c99c4be321fcf167f7edfe4b307c8cded7bfeda7f61673dee79c955

  • SHA512

    1a054189f35f7aba31c080e27ebdbbc7bb4fc5110124b1317631a422d9888d51e60cdcd507c1073280b2bb7dfec1de957ec736b112413a70ca48be1baff8b6a1

  • SSDEEP

    393216:owAct+L01+l+uq+Vvj1+TtIiF90VQxzC7P6ga:owQ01+l+uqgvj1QtINSC7PK

Score
10/10
exelastealercollectiondefense_evasiondiscoveryevasionpersistenceprivilege_escalationpyinstallerspywarestealer

Malware Config

Targets

    • Target

      KRNL-bootstrapper.exe

    • Size

      13.2MB

    • MD5

      5c14e347317a51194b82ef0855e26e3b

    • SHA1

      77fb645077b717acfb78dee36371a04976b26e2c

    • SHA256

      e0aca3445c99c4be321fcf167f7edfe4b307c8cded7bfeda7f61673dee79c955

    • SHA512

      1a054189f35f7aba31c080e27ebdbbc7bb4fc5110124b1317631a422d9888d51e60cdcd507c1073280b2bb7dfec1de957ec736b112413a70ca48be1baff8b6a1

    • SSDEEP

      393216:owAct+L01+l+uq+Vvj1+TtIiF90VQxzC7P6ga:owQ01+l+uqgvj1QtINSC7PK

    Score
    10/10
    exelastealercollectiondefense_evasiondiscoveryevasionpersistenceprivilege_escalationspywarestealer

    • Exela Stealer

      Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.

      stealerexelastealer

    • Exelastealer family

      exelastealer

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Modifies Windows Firewall

      evasion

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

      collection

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Network Service Discovery

      Attempt to gather information on host's network.

      discovery

    • Enumerates processes with tasklist

      discovery

    • Hide Artifacts: Hidden Files and Directories

      defense_evasion
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Persistence

Account Manipulation

1
T1098

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Account Manipulation

1
T1098

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

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

Browser Information Discovery

1
T1217

Network Service Discovery

1
T1046

Permission Groups Discovery

1
T1069

Local Groups

1
T1069.001

Process Discovery

1
T1057

System Information Discovery

3
T1082

System Network Configuration Discovery

1
T1016

Wi-Fi Discovery

1
T1016.002

System Network Connections Discovery

1
T1049

Lateral Movement

Collection

Clipboard Data

1
T1115

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Tasks