Overview

overview

10

Static

static

3

Dick.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Dick.exe

  • Size

    154KB

  • Sample

    250214-y9jvrsylat

  • MD5

    839c119a032699dd494b3dc91251fa77

  • SHA1

    d1323d39fd577d5bf3adb2e093043923b018a8c9

  • SHA256

    f1942d7cf8876e6a8a56db8fabc90082c9798933bdd02e8c07e28ecc80ddb8bb

  • SHA512

    f134f9f8159324d2a6ea82dcef861b4c3f7c218182373297054fb915b084734b923b34081a6b98c4507d79341b8adf76ca0cee1ea20657b686c1252c78cae618

  • SSDEEP

    3072:1ahKyd2n31n5GWp1icKAArDZz4N9GhbkrNEk1lT:1ahO/p0yN90QE6

Score
10/10
umbraldefense_evasiondiscoveryexecutionpersistencestealertrojan

Malware Config

Targets

    • Target

      Dick.exe

    • Size

      154KB

    • MD5

      839c119a032699dd494b3dc91251fa77

    • SHA1

      d1323d39fd577d5bf3adb2e093043923b018a8c9

    • SHA256

      f1942d7cf8876e6a8a56db8fabc90082c9798933bdd02e8c07e28ecc80ddb8bb

    • SHA512

      f134f9f8159324d2a6ea82dcef861b4c3f7c218182373297054fb915b084734b923b34081a6b98c4507d79341b8adf76ca0cee1ea20657b686c1252c78cae618

    • SSDEEP

      3072:1ahKyd2n31n5GWp1icKAArDZz4N9GhbkrNEk1lT:1ahO/p0yN90QE6

    Score
    10/10
    umbraldefense_evasiondiscoveryexecutionpersistencestealertrojan

    • Detect Umbral payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • UAC bypass

      defense_evasiontrojan

    • Umbral

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

      stealerumbral

    • Umbral family

      umbral

    • Blocklisted process makes network request

    • 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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

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

Command and Control

Exfiltration

Impact

Tasks