General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    231104-mxqa8sae22

  • MD5

    5b6cf3311c43042e7c34d4245e837e49

  • SHA1

    2056489c9934a88ef0e0654c4ae2a26ee4b62f60

  • SHA256

    62de60b59a7e50201894f528b124dc94c072c9db3904494d194b0c7f8be5a4f7

  • SHA512

    0b715f1c8d50333c35f8ef1d39fe7546b4e9bd9c5012e1df6dad739a0cefa2e56ea42837800e7b5b664e413a624156c559a5df1bbb9dacc6a3417ccc3556d966

  • SSDEEP

    49152:DvBt62XlaSFNWPjljiFa2RoUYIfkxNESEVk/ijLoGdHTHHB72eh2NT:Dvr62XlaSFNWPjljiFXRoUYI8x4v

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

serverlolxd.ddns.net:4782

Mutex

d8c275e5-18fa-4e81-8ec8-a1df4d7051cd

Attributes
  • encryption_key

    55134B4B269EA9FF5C0DE96378EBD7CC33C096F6

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Update

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      5b6cf3311c43042e7c34d4245e837e49

    • SHA1

      2056489c9934a88ef0e0654c4ae2a26ee4b62f60

    • SHA256

      62de60b59a7e50201894f528b124dc94c072c9db3904494d194b0c7f8be5a4f7

    • SHA512

      0b715f1c8d50333c35f8ef1d39fe7546b4e9bd9c5012e1df6dad739a0cefa2e56ea42837800e7b5b664e413a624156c559a5df1bbb9dacc6a3417ccc3556d966

    • SSDEEP

      49152:DvBt62XlaSFNWPjljiFa2RoUYIfkxNESEVk/ijLoGdHTHHB72eh2NT:Dvr62XlaSFNWPjljiFXRoUYI8x4v

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks