Overview

overview

10

Static

static

3

f2392b16f0...5d.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    f2392b16f0103924d03ee358e82c5febcd1c89eba7a270054d40f34b54119a5d
  • Size 2.0MB
  • Sample260828-j7mfjsvgkc
  • SHA256 f2392b16f0103924d03ee358e82c5febcd1c89eba7a270054d40f34b54119a5d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
nabucurdiscoveryexecutionpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target
      f2392b16f0103924d03ee358e82c5febcd1c89eba7a270054d40f34b54119a5d
    • Size 2.0MB
    • SHA256 f2392b16f0103924d03ee358e82c5febcd1c89eba7a270054d40f34b54119a5d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoveryexecutionnabucurpersistenceransomwarespywarestealer

    • Family: Nabucur

      Nabucur is a ransomware first seen in 2015.

      ransomwarenabucur

    • Modifies WinLogon for persistence

      persistence

    • Renames multiple (53) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Executes dropped EXE

    • 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
    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Command Shell

1
T1059.003

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

3
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

System Information Discovery

1
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks