Overview

overview

6

Static

static

1

MailbirdInstaller.exe

windows10-ltsc_2021-x64

6

MailbirdInstaller.exe

windows11-21h2-x64

6

Sharing

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General

  • Target
    MailbirdInstaller.exe
  • Size 6.2MB
  • Sample260815-dfn76sxeke
  • SHA256 09f74e1230793ed98219c64d4795464278c8ffc2b4e07d506de5dd621136d3b4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
collectiondefense_evasiondiscoverypersistenceprivilege_escalationtrojan

Malware Config

Targets

    • Target
      MailbirdInstaller.exe
    • Size 6.2MB
    • SHA256 09f74e1230793ed98219c64d4795464278c8ffc2b4e07d506de5dd621136d3b4
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    6/10
    defense_evasiondiscoverypersistenceprivilege_escalationtrojancollection

    • Accesses Microsoft Outlook profiles

      collection

    • Adds Run key to start application

      persistence

    • Downloads MZ/PE file

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Network Service Discovery

      Attempt to gather information on host's network.

      discovery

    • Network Share Discovery

      Attempt to gather information on host network.

      discovery

    • Checks computer location settings

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

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

      persistenceprivilege_escalation
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

Component Object Model Hijacking

1
T1546.015

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

Component Object Model Hijacking

1
T1546.015

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Browser Information Discovery

1
T1217

Network Service Discovery

1
T1046

Network Share Discovery

1
T1135

Peripheral Device Discovery

1
T1120

Query Registry

5
T1012

System Information Discovery

6
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Email Collection

1
T1114

Command and Control

Exfiltration

Impact

Tasks