Overview

overview

10

Static

static

3

Kobalc.exe

windows7-x64

10

Kobalc.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Kobalc.exe

  • Size

    185KB

  • Sample

    240506-wx6gwsdd41

  • MD5

    15717cd327a723820d71900611545917

  • SHA1

    99184ec149d329e98cd3e600cfaba22a2f9a0156

  • SHA256

    db6cea7e8d62d3b21efe3b423b48c131e345cb55f168cbe1f142e491bb812747

  • SHA512

    a0de435db809e3e79f89411017e244c76145e010c67f894d41e265804c832f5514ac2f31cc9a0c667afa77aaaf3eccecac148279ca5a0feba492b222d5481a49

  • SSDEEP

    3072:LoixrduqW9Goin4lZoD9d16zVfMZ2KKNRdTaB:0W5jOA96xrRd

Score
10/10
lummametasploitbackdoorevasionpersistencestealertrojan

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Targets

    • Target

      Kobalc.exe

    • Size

      185KB

    • MD5

      15717cd327a723820d71900611545917

    • SHA1

      99184ec149d329e98cd3e600cfaba22a2f9a0156

    • SHA256

      db6cea7e8d62d3b21efe3b423b48c131e345cb55f168cbe1f142e491bb812747

    • SHA512

      a0de435db809e3e79f89411017e244c76145e010c67f894d41e265804c832f5514ac2f31cc9a0c667afa77aaaf3eccecac148279ca5a0feba492b222d5481a49

    • SSDEEP

      3072:LoixrduqW9Goin4lZoD9d16zVfMZ2KKNRdTaB:0W5jOA96xrRd

    Score
    10/10
    lummametasploitbackdoorevasionpersistencestealertrojan

    • Detect Lumma Stealer payload V4

    • Lumma Stealer

      An infostealer written in C++ first seen in August 2022.

      stealerlumma

    • MetaSploit

      Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

      trojanbackdoormetasploit

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Looks for VMWare Tools registry key

      evasion

    • Modifies Installed Components in the registry

      persistence

    • Modifies Windows Firewall

      evasion

    • Deletes itself

    • Executes dropped EXE

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

3
T1543

Windows Service

3
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

3
T1543

Windows Service

3
T1543.003

Defense Evasion

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Modify Registry

7
T1112

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Virtualization/Sandbox Evasion

1
T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks