Overview

overview

10

Static

static

1

Boostrapper.exe

windows10-2004-x64

10

loader-o.pyc

windows10-2004-x64

3

Sharing

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General

  • Target

    Boostrapper.exe

  • Size

    44.7MB

  • Sample

    240927-1wyg4s1hnm

  • MD5

    f43880dad3c258bf47254e2a10adcbc1

  • SHA1

    9916d409b18cdbf91a4bb972ab493910f6c77f5d

  • SHA256

    178d8cd0eb9d700b9be8f4b37e4380522af0dd950ae858bb2c79aeb10a71a84a

  • SHA512

    1bf1ac13c435a1accc78a57cb1b69a97ced1a6ff632b508f03f8e455292a08d360f2a05443a30cd2d643100ed4a1b36f4acb3ff0dd2127d75fb7554d34fad79e

  • SSDEEP

    786432:a9AOQTL1qSHqdc1Yd72r5JbTiumfSfz+EvbJESWqEp+0/pW/UyTo6:MAOQTzHZgs5xTivfSffvb6qrSaU4o6

Score
10/10
exelastealercollectiondiscoveryevasionexecutionpersistenceprivilege_escalationpyinstallerspywarestealerupx

Malware Config

Targets

    • Target

      Boostrapper.exe

    • Size

      44.7MB

    • MD5

      f43880dad3c258bf47254e2a10adcbc1

    • SHA1

      9916d409b18cdbf91a4bb972ab493910f6c77f5d

    • SHA256

      178d8cd0eb9d700b9be8f4b37e4380522af0dd950ae858bb2c79aeb10a71a84a

    • SHA512

      1bf1ac13c435a1accc78a57cb1b69a97ced1a6ff632b508f03f8e455292a08d360f2a05443a30cd2d643100ed4a1b36f4acb3ff0dd2127d75fb7554d34fad79e

    • SSDEEP

      786432:a9AOQTL1qSHqdc1Yd72r5JbTiumfSfz+EvbJESWqEp+0/pW/UyTo6:MAOQTzHZgs5xTivfSffvb6qrSaU4o6

    Score
    10/10
    exelastealercollectiondiscoveryevasionexecutionpersistenceprivilege_escalationpyinstallerspywarestealerupx

    • 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

    • Grants admin privileges

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Downloads MZ/PE file

    • Modifies Windows Firewall

      evasion

    • Clipboard Data

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

      collection

    • Deletes itself

    • 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

    • UPX packed file

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

      upx
    behavioral1

    • Target

      loader-o.pyc

    • Size

      5.8MB

    • MD5

      3b750eb515bb762fadc05d5b31982f75

    • SHA1

      e8c8e23d3f259182e268432d57d05816a18ef14d

    • SHA256

      ff761ecda9a3837f08d19ad2a28e594cd0f070f5eea3549f3b5a319bff412fe5

    • SHA512

      b84b3a15a8626e6e5b80a0dfb4faca283d59c035407426024d9cdacd0a987b11d2a181bebe26158981e35d4133877828b901e7ab496fe444f3ba905882a94295

    • SSDEEP

      3072:E9ZmmGl7jek/8IAkG5soV8/fj58bpSz9nBMtdZaFqISj9W+d7sI1fNOvoM5EdHNL:CsUl

    Score
    3/10
    behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

1
T1059.001

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

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

Query Registry

1
T1012

System Information Discovery

5
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