Overview

overview

10

Static

static

3

Isolence.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Isolence.exe

  • Size

    402KB

  • Sample

    240922-vd64mszekr

  • MD5

    87e7cabc378978827ad35f11a7e3d311

  • SHA1

    eebf169bc83f6809229a8e2bd7925f99c216842f

  • SHA256

    441d5ad14a8d62643e2fe09046f6afe5b04b045c89dc3b213fcb695d5faa0063

  • SHA512

    2893da6232254d14d8038529e636f8178ef0b2143f640e6655de9186635b545d19713c843409840f8a1807adfe9ef10c344a42d448c9d71663f988d29467f039

  • SSDEEP

    6144:Vqg1BFe479zdJQxMh1PLm1Puu24ZmlLKSCbOymoeFKJCTownhl4K/X:Vx247OGQ3Z+WS2eVPnv4Kv

Score
10/10
umbralcredential_accessdefense_evasiondiscoveryexecutionspywarestealer

Malware Config

Targets

    • Target

      Isolence.exe

    • Size

      402KB

    • MD5

      87e7cabc378978827ad35f11a7e3d311

    • SHA1

      eebf169bc83f6809229a8e2bd7925f99c216842f

    • SHA256

      441d5ad14a8d62643e2fe09046f6afe5b04b045c89dc3b213fcb695d5faa0063

    • SHA512

      2893da6232254d14d8038529e636f8178ef0b2143f640e6655de9186635b545d19713c843409840f8a1807adfe9ef10c344a42d448c9d71663f988d29467f039

    • SSDEEP

      6144:Vqg1BFe479zdJQxMh1PLm1Puu24ZmlLKSCbOymoeFKJCTownhl4K/X:Vx247OGQ3Z+WS2eVPnv4Kv

    Score
    10/10
    umbralcredential_accessdefense_evasiondiscoveryexecutionspywarestealer

    • Detect Umbral payload

    • Umbral

      Umbral stealer is an opensource moduler stealer written in C#.

      stealerumbral

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

      credential_accessstealer

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Drops file in Drivers directory

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • 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.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

      defense_evasion
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Obfuscated Files or Information

1
T1027

Command Obfuscation

1
T1027.010

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

Query Registry

1
T1012

Remote System Discovery

1
T1018

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Tasks