Overview

overview

10

Static

static

1

mc.holyworld.ru.txt

windows10-2004-x64

10

Sharing

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General

  • Target

    mc.holyworld.ru.txt

  • Size

    441B

  • Sample

    240612-vtnl8ssfma

  • MD5

    6b5f9725b7fd7348c9c1a70ce5291ecc

  • SHA1

    a36ae0a9f29f72e68fe21947841169fb02e6b973

  • SHA256

    87bbdc08df5add73d75325002704ab64c57d7e50ebff97b2fc4155b619eb2704

  • SHA512

    d60cd62d5e71fe626fdad52dbb5f71865946a55ad44fa49126257565b52fdd8b20d0be42bb02fda7112e78a1f61b28b77109bf00b46e431cb41d88ad3c63afd3

Score
10/10
umbralexecutionpersistencespywarestealer

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1250361429333250119/Ue0qgEfIsngTl30ZNCtwzPjGafoMAt1Nkvz6HdtQyp6-br8N7e5NViVMa77MrDft7Ulq

Targets

    • Target

      mc.holyworld.ru.txt

    • Size

      441B

    • MD5

      6b5f9725b7fd7348c9c1a70ce5291ecc

    • SHA1

      a36ae0a9f29f72e68fe21947841169fb02e6b973

    • SHA256

      87bbdc08df5add73d75325002704ab64c57d7e50ebff97b2fc4155b619eb2704

    • SHA512

      d60cd62d5e71fe626fdad52dbb5f71865946a55ad44fa49126257565b52fdd8b20d0be42bb02fda7112e78a1f61b28b77109bf00b46e431cb41d88ad3c63afd3

    Score
    10/10
    umbralexecutionpersistencespywarestealer

    • Detect Umbral payload

    • Modifies WinLogon for persistence

      persistence

    • 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

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies AppInit DLL entries

      persistence

    • Checks computer location settings

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

    • 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.

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Scheduled Task/Job

1
T1053

Defense Evasion

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

4
T1012

Remote System Discovery

1
T1018

System Information Discovery

5
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Tasks