General

  • Target

    4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563

  • Size

    821KB

  • Sample

    240120-bf5ttaggfm

  • MD5

    ecdff1026e3fde10bfbd1eec8fc56df7

  • SHA1

    582f980152c469de53aeb7230951ebb79f0e7056

  • SHA256

    4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563

  • SHA512

    8b3e19d03fc9f4e336b999f8e261ea7ad4d652a9e28f254cce3ded41fbab32999b9682f68f0ee65ae6ddb4ca072a783487426f5070ada938b5ddd91d7a7f1e6d

  • SSDEEP

    12288:jBdlwHRn+WlYV+8T+tk8z9qnwb6XMMA4pZ8KGuLbAovtau1PtjLxuWRtb:jBkVdlYAK2qnvXMGpy0L8OJPjQqtb

Malware Config

Targets

    • Target

      4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563

    • Size

      821KB

    • MD5

      ecdff1026e3fde10bfbd1eec8fc56df7

    • SHA1

      582f980152c469de53aeb7230951ebb79f0e7056

    • SHA256

      4b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563

    • SHA512

      8b3e19d03fc9f4e336b999f8e261ea7ad4d652a9e28f254cce3ded41fbab32999b9682f68f0ee65ae6ddb4ca072a783487426f5070ada938b5ddd91d7a7f1e6d

    • SSDEEP

      12288:jBdlwHRn+WlYV+8T+tk8z9qnwb6XMMA4pZ8KGuLbAovtau1PtjLxuWRtb:jBkVdlYAK2qnvXMGpy0L8OJPjQqtb

    • Detects Echelon Stealer payload

    • Echelon

      Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.

    • Stops running service(s)

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Impair Defenses

1
T1562

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Impact

Service Stop

1
T1489

Tasks