General

  • Target

    OptiFine_1.19.4_HD_U_I4.jar

  • Size

    6.7MB

  • Sample

    241029-hpl7dsxelp

  • MD5

    2e58bf463ec7e9964fe381a5afc17da1

  • SHA1

    40a44c00d4f06ba82e97b8eb71aab3823f4e9d93

  • SHA256

    2c010bcae341cf1003c194a4b566a0cb0c8dff2443d2f9fbd9e7a2d9abc8af6a

  • SHA512

    94d0673370168322cc6ba5ae7bc9ad5d5c4246aa10f8929239dedc25639255c807c32ea248ee751c42aed9ca61cf37ab391d7d3a9ba57bc643e091c9ef4009d1

  • SSDEEP

    98304:+4T54pxq3gbAuFu0Lw6jEKuBj036dh1KyMH9vPMDNgPjDbHA:+4TCxq3gtFuiWKufdh1jA9H7LPg

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

RJVXVXVup8cM

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain
aes.plain

Targets

    • Target

      OptiFine_1.19.4_HD_U_I4.jar

    • Size

      6.7MB

    • MD5

      2e58bf463ec7e9964fe381a5afc17da1

    • SHA1

      40a44c00d4f06ba82e97b8eb71aab3823f4e9d93

    • SHA256

      2c010bcae341cf1003c194a4b566a0cb0c8dff2443d2f9fbd9e7a2d9abc8af6a

    • SHA512

      94d0673370168322cc6ba5ae7bc9ad5d5c4246aa10f8929239dedc25639255c807c32ea248ee751c42aed9ca61cf37ab391d7d3a9ba57bc643e091c9ef4009d1

    • SSDEEP

      98304:+4T54pxq3gbAuFu0Lw6jEKuBj036dh1KyMH9vPMDNgPjDbHA:+4TCxq3gtFuiWKufdh1jA9H7LPg

    • AsyncRat

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

    • Asyncrat family

    • Modifies Windows Defender Real-time Protection settings

    • Modifies visibility of file extensions in Explorer

    • 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.

    • Windows security modification

    • Command and Scripting Interpreter: PowerShell

      Start PowerShell.

    • Legitimate hosting services abused for malware hosting/C2

    • Network Service Discovery

      Attempt to gather information on host's network.

MITRE ATT&CK Enterprise v15

Tasks