General

  • Target

    build.bat

  • Size

    14.0MB

  • Sample

    240517-wvjv4scc52

  • MD5

    ef8beb81c6fa2aaad4a314be361292ce

  • SHA1

    7b7296096931ac5d62081cc91ead8afd2346e0c7

  • SHA256

    6377476be087b6911f24f93a601fd8f46461f52815ec27f95371c8418c385377

  • SHA512

    8ffa18e66e4e8a3a23eb7c2375fa6b25aab90da3265f35d56ea9965f8d2c89a988052bbd0e05c0b3b3c124cb5e9f47b0b6ab5ea0df3b880d449fd3ff2a25767f

  • SSDEEP

    49152:Lhha5TtF7ZXKxZvLjnrt64H1eGHrWT7xdJ11ar07nqcBIL/ULWorCWmZ9vXEdQm/:E

Score
10/10

Malware Config

Extracted

Family

quasar

Attributes
  • reconnect_delay

    3000

Targets

    • Target

      build.bat

    • Size

      14.0MB

    • MD5

      ef8beb81c6fa2aaad4a314be361292ce

    • SHA1

      7b7296096931ac5d62081cc91ead8afd2346e0c7

    • SHA256

      6377476be087b6911f24f93a601fd8f46461f52815ec27f95371c8418c385377

    • SHA512

      8ffa18e66e4e8a3a23eb7c2375fa6b25aab90da3265f35d56ea9965f8d2c89a988052bbd0e05c0b3b3c124cb5e9f47b0b6ab5ea0df3b880d449fd3ff2a25767f

    • SSDEEP

      49152:Lhha5TtF7ZXKxZvLjnrt64H1eGHrWT7xdJ11ar07nqcBIL/ULWorCWmZ9vXEdQm/:E

    Score
    10/10
    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks