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Overview

overview

10

Static

static

3

SystemUpdate.exe

windows10-2004-x64

10

SystemUpdate.exe

windows10-ltsc_2021-x64

10

SystemUpdate.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    SystemUpdate.exe

  • Size

    38.5MB

  • Sample

    250325-csapwaztdt

  • MD5

    812fb887e9dba4a5484fef3e0affe368

  • SHA1

    a96a4132b8f03810d0c3862fa90108da8cc0bce6

  • SHA256

    5d99f5bf54c9d7728bbfd50f75b462d453130fff7df37a039cb8cfd490b2e397

  • SHA512

    a615394160fdec370b37885291c23d6584cde8287a618d3eda782fa9b9166abd733902f5f800657c801ef47bd1b4201b90782748c9057dca57dc0a579b65b44e

  • SSDEEP

    786432:gHrt2V0YlUNf5ajZV3p3vv8gt7usRxcJ+519jtD+/K48NJtvXdlxn8C4L:gL4uEUNf5WZggt5cmBRUK48rPlxC

Score
10/10
exelastealercollectiondefense_evasiondiscoverypersistenceprivilege_escalationspywarestealer

Malware Config

Targets

    • Target

      SystemUpdate.exe

    • Size

      38.5MB

    • MD5

      812fb887e9dba4a5484fef3e0affe368

    • SHA1

      a96a4132b8f03810d0c3862fa90108da8cc0bce6

    • SHA256

      5d99f5bf54c9d7728bbfd50f75b462d453130fff7df37a039cb8cfd490b2e397

    • SHA512

      a615394160fdec370b37885291c23d6584cde8287a618d3eda782fa9b9166abd733902f5f800657c801ef47bd1b4201b90782748c9057dca57dc0a579b65b44e

    • SSDEEP

      786432:gHrt2V0YlUNf5ajZV3p3vv8gt7usRxcJ+519jtD+/K48NJtvXdlxn8C4L:gL4uEUNf5WZggt5cmBRUK48rPlxC

    Score
    10/10
    exelastealercollectiondefense_evasiondiscoverystealerpersistenceprivilege_escalationspyware

    • 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

      defense_evasion

    • Clipboard Data

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

      collection

    • Executes dropped EXE

    • 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
    behavioral1behavioral2behavioral3

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