Overview

overview

10

Static

static

10

JJSPLOITRE...1).zip

windows10-ltsc 2021-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    JJSPLOITRECODE (1).zip

  • Size

    420KB

  • Sample

    250117-rbl4xa1nem

  • MD5

    28bd80f1840e0df6ee7879891b46d334

  • SHA1

    1bfe169b2d74ead9080fedd983dc766656667fac

  • SHA256

    25e9f3260fa4839cdd0d5831649d747e366eaa52619f3fb072083fc2ff71e085

  • SHA512

    5fd90e4686263a57e14cb123b287e535c650245004ed201444e25f8e7806913efde128118dceead9945ddd7cbe0aa063399262b17bc6ecaea6e82cd02f445d39

  • SSDEEP

    12288:8zhhUOLyUXPVle40fxddquoKaJ/wJ6I545ul6sOw:yMI6xd/ojVQ4j/w

Score
10/10
umbraldiscoveryexecutionpersistenceprivilege_escalationspywarestealer

Malware Config

Targets

    • Target

      JJSPLOITRECODE (1).zip

    • Size

      420KB

    • MD5

      28bd80f1840e0df6ee7879891b46d334

    • SHA1

      1bfe169b2d74ead9080fedd983dc766656667fac

    • SHA256

      25e9f3260fa4839cdd0d5831649d747e366eaa52619f3fb072083fc2ff71e085

    • SHA512

      5fd90e4686263a57e14cb123b287e535c650245004ed201444e25f8e7806913efde128118dceead9945ddd7cbe0aa063399262b17bc6ecaea6e82cd02f445d39

    • SSDEEP

      12288:8zhhUOLyUXPVle40fxddquoKaJ/wJ6I545ul6sOw:yMI6xd/ojVQ4j/w

    Score
    10/10
    umbraldiscoveryexecutionpersistenceprivilege_escalationspywarestealer

    • Detect Umbral payload

    • Modifies WinLogon for persistence

      persistence

    • Umbral

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

      stealerumbral

    • Umbral family

      umbral

    • 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

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

      persistenceprivilege_escalation

    • 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

    • Adds Run key to start application

      persistence

    • 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

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

AppInit DLLs

1
T1546.010

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

AppInit DLLs

1
T1546.010

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

2
T1112

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

2
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