Overview

overview

10

Static

static

10

release5102024.exe

windows7-x64

10

release5102024.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    release5102024.exe

  • Size

    234KB

  • Sample

    240526-v36jeaeh69

  • MD5

    0e686473973693d296760e2c8ea19dd8

  • SHA1

    80bf5c75bebb592eb88322c3a4dda1f056b33b69

  • SHA256

    330257ac72a4b7cb8d45cbb4d5f888bc6c69f139e7b0edf1cb64f2c733d846f7

  • SHA512

    c06039e42a95c8ca0ec7fc8bfa5ac002208ffe69d49f7379ab272772496a1c08e165b7220748df52233ef7187c2204ecf2eecaa9a7aceeabd3b29bc32fe84e0f

  • SSDEEP

    6144:XloZM+rIkd8g+EtXHkv/iD43WZwEbhS6FvAxDeebyAb8e1m9ii4:1oZtL+EP83WZwEbhS6FvAxDeeb7m

Score
10/10
umbralexecutionspywarestealer

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1238594444178096289/TfFp2BIF3gI-jN7QcJ_G3TBbemRzhLns-wcLMlz-XMR6wfrO6onaNYV-JZ-f4ISI78_y

Targets

    • Target

      release5102024.exe

    • Size

      234KB

    • MD5

      0e686473973693d296760e2c8ea19dd8

    • SHA1

      80bf5c75bebb592eb88322c3a4dda1f056b33b69

    • SHA256

      330257ac72a4b7cb8d45cbb4d5f888bc6c69f139e7b0edf1cb64f2c733d846f7

    • SHA512

      c06039e42a95c8ca0ec7fc8bfa5ac002208ffe69d49f7379ab272772496a1c08e165b7220748df52233ef7187c2204ecf2eecaa9a7aceeabd3b29bc32fe84e0f

    • SSDEEP

      6144:XloZM+rIkd8g+EtXHkv/iD43WZwEbhS6FvAxDeebyAb8e1m9ii4:1oZtL+EP83WZwEbhS6FvAxDeeb7m

    Score
    10/10
    umbralexecutionspywarestealer

    • Detect Umbral payload

    • Umbral

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

      stealerumbral

    • Command and Scripting Interpreter: PowerShell

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

      execution

    • Drops file in Drivers directory

    • Deletes itself

    • 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.

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

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

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks