General

  • Target

    880638c92fa2c08cb06e39cb26c8f0800a31261d7f9ca87b1b0d56e01d0e5299

  • Size

    326KB

  • Sample

    220521-ebtgrshbe2

  • MD5

    92b1ba5c910b6cfdfbc4695c0bacb8be

  • SHA1

    8efd46ec55189a7a288a6bd3ed62cd614e37536e

  • SHA256

    880638c92fa2c08cb06e39cb26c8f0800a31261d7f9ca87b1b0d56e01d0e5299

  • SHA512

    dee25836d7ce620269d8cf230c0d1307bd2adf031428b447f3f00c3de1fef216f46e537660c2fb10784f1b24b83e7550f0577da14eaad1dcdba286215bf234d6

Malware Config

Targets

    • Target

      880638c92fa2c08cb06e39cb26c8f0800a31261d7f9ca87b1b0d56e01d0e5299

    • Size

      326KB

    • MD5

      92b1ba5c910b6cfdfbc4695c0bacb8be

    • SHA1

      8efd46ec55189a7a288a6bd3ed62cd614e37536e

    • SHA256

      880638c92fa2c08cb06e39cb26c8f0800a31261d7f9ca87b1b0d56e01d0e5299

    • SHA512

      dee25836d7ce620269d8cf230c0d1307bd2adf031428b447f3f00c3de1fef216f46e537660c2fb10784f1b24b83e7550f0577da14eaad1dcdba286215bf234d6

    • Modifies Windows Defender Real-time Protection settings

    • Creates new service(s)

    • Downloads MZ/PE file

    • 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.

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Checks installed software on the system

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

    • Drops desktop.ini file(s)

    • 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

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

New Service

1
T1050

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Modify Registry

5
T1112

Disabling Security Tools

1
T1089

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Security Software Discovery

1
T1063

Collection

Data from Local System

1
T1005

Tasks