Overview

overview

10

Static

static

5

optimizer.exe

windows7-x64

7

optimizer.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    optimizer.exe

  • Size

    12.9MB

  • Sample

    241231-d12n1avpdx

  • MD5

    5fe862a2ce144cab18f8f0d293b4d00d

  • SHA1

    51629e9c06fac3797e9209b0c72b653615280218

  • SHA256

    4dd36b00b17dd316a92d8ec6a8536b5c3e3ff5b740b5a29ede2ac5fa9513011a

  • SHA512

    0812f72e38a59f7bc97e397e6227d7e2c3511325ac093b4feb4cd1decb94d689ab846afc16279daf7485c1c97ede8c506b1fa0fa8a9bedeb1f0b3797ac3c14bb

  • SSDEEP

    393216:qt12AWdqwuwq3Obs2ClzbjdQJlSwF3MnG3xl5Ze03r2W673+H:0R8tuwq3ObRqzXdQn3MGxZri3O

Score
10/10
exelastealercollectiondefense_evasiondiscoveryevasionpersistenceprivilege_escalationspywarestealerupx

Malware Config

Targets

    • Target

      optimizer.exe

    • Size

      12.9MB

    • MD5

      5fe862a2ce144cab18f8f0d293b4d00d

    • SHA1

      51629e9c06fac3797e9209b0c72b653615280218

    • SHA256

      4dd36b00b17dd316a92d8ec6a8536b5c3e3ff5b740b5a29ede2ac5fa9513011a

    • SHA512

      0812f72e38a59f7bc97e397e6227d7e2c3511325ac093b4feb4cd1decb94d689ab846afc16279daf7485c1c97ede8c506b1fa0fa8a9bedeb1f0b3797ac3c14bb

    • SSDEEP

      393216:qt12AWdqwuwq3Obs2ClzbjdQJlSwF3MnG3xl5Ze03r2W673+H:0R8tuwq3ObRqzXdQn3MGxZri3O

    Score
    10/10
    upxexelastealercollectiondefense_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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2

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

2
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