General

  • Target

    550af2bdfc53c23e8a835c17205986d06a0fb885ca7a3b59e68b51e5f1a525d6

  • Size

    610KB

  • Sample

    220725-vrh9qsbhgm

  • MD5

    45babfdf557e3c3ced4bced92a8f2564

  • SHA1

    5347300d83442a40d7256b935b873d8a31f7dc3b

  • SHA256

    550af2bdfc53c23e8a835c17205986d06a0fb885ca7a3b59e68b51e5f1a525d6

  • SHA512

    7d27c12f4f4826b3295de12de22a31214fc2a29145bc829ff08db572caf927fd3656d464a6e75986bbffbcb3252463ffa90b4d835fb7a7cb815431634fce9502

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.grefas.co.th
  • Port:
    587
  • Username:
    admin@grefas.co.th
  • Password:
    Cream3040@

Targets

    • Target

      550af2bdfc53c23e8a835c17205986d06a0fb885ca7a3b59e68b51e5f1a525d6

    • Size

      610KB

    • MD5

      45babfdf557e3c3ced4bced92a8f2564

    • SHA1

      5347300d83442a40d7256b935b873d8a31f7dc3b

    • SHA256

      550af2bdfc53c23e8a835c17205986d06a0fb885ca7a3b59e68b51e5f1a525d6

    • SHA512

      7d27c12f4f4826b3295de12de22a31214fc2a29145bc829ff08db572caf927fd3656d464a6e75986bbffbcb3252463ffa90b4d835fb7a7cb815431634fce9502

    • HawkEye

      HawkEye is a malware kit that has seen continuous development since at least 2013.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Scripting

1
T1064

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Tasks