General

  • Target

    Stellar.exe

  • Size

    6.1MB

  • Sample

    250105-zjmdmsvrds

  • MD5

    f034b97fd20e082477a3bc36d941cbf4

  • SHA1

    6e1b18afe72f9060983cb53bcf2e858b7517e0aa

  • SHA256

    7c7bd6b6eae68733dba57de0fd87f64efa1b95a574d62a878296d87f9512d0d7

  • SHA512

    dfa3b17102c47577e07f5bd0a585f85d558b8eaa54bc783342bd6f81a14b861fd260674e039abf16e39d4dc7a9c4a6b352c3f53b64086c00d624727cda43cb9f

  • SSDEEP

    196608:RaiSkSIlLTUcwti7TQl2NgVg01MWAXAkuujCPX9YG9he5GnQCAJKN:QkSopwtQQl2aOtXADu8X9Y95GQLJ

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

51.89.44.68:8848

Mutex

etb3t1tr5n

Attributes
  • delay

    1

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %Temp%

aes.plain

Targets

    • Target

      Stellar.exe

    • Size

      6.1MB

    • MD5

      f034b97fd20e082477a3bc36d941cbf4

    • SHA1

      6e1b18afe72f9060983cb53bcf2e858b7517e0aa

    • SHA256

      7c7bd6b6eae68733dba57de0fd87f64efa1b95a574d62a878296d87f9512d0d7

    • SHA512

      dfa3b17102c47577e07f5bd0a585f85d558b8eaa54bc783342bd6f81a14b861fd260674e039abf16e39d4dc7a9c4a6b352c3f53b64086c00d624727cda43cb9f

    • SSDEEP

      196608:RaiSkSIlLTUcwti7TQl2NgVg01MWAXAkuujCPX9YG9he5GnQCAJKN:QkSopwtQQl2aOtXADu8X9Y95GQLJ

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Asyncrat family

    • Async RAT payload

    • Downloads MZ/PE file

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • Legitimate hosting services abused for malware hosting/C2

    • 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 Enterprise v15

Tasks