General

  • Target

    Uni.bat

  • Size

    10.4MB

  • Sample

    241128-vy695szmal

  • MD5

    2cc589a27044382be0ec55f23f36fa41

  • SHA1

    4edc18c1b0e3558086e86d4e5c344fc9bed8d97c

  • SHA256

    d05dd87b7ce909f8f3f85607f9546bcbe1168a507955c4d504d8c83f02d9a909

  • SHA512

    baf948e4257cda2a0c30e9663448e884d40d844cc0f15cb64a9a2ccc40c12d1bdf1b5808d80b19c0f401478504468669d44edcdf0153f88d1b3ceb3303656045

  • SSDEEP

    49152:C/JouIj6nHI8l5lK7g/JLyDX7YVDazqMdubv+JrncVzgH+60gF4SLF+pHGwhESAG:K

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

v15.4.5 | SeroXen

C2

map-casio.gl.at.ply.gg:57345

Mutex

93520150-37f5-4b86-9682-b07d73e61808

Attributes
  • encryption_key

    E9B24DC5A9D33874B0626389429DD789286126DC

  • install_name

    .exe

  • log_directory

    $sxr-Logs

  • reconnect_delay

    230

  • startup_key

    $sxr-seroxen

Targets

    • Target

      Uni.bat

    • Size

      10.4MB

    • MD5

      2cc589a27044382be0ec55f23f36fa41

    • SHA1

      4edc18c1b0e3558086e86d4e5c344fc9bed8d97c

    • SHA256

      d05dd87b7ce909f8f3f85607f9546bcbe1168a507955c4d504d8c83f02d9a909

    • SHA512

      baf948e4257cda2a0c30e9663448e884d40d844cc0f15cb64a9a2ccc40c12d1bdf1b5808d80b19c0f401478504468669d44edcdf0153f88d1b3ceb3303656045

    • SSDEEP

      49152:C/JouIj6nHI8l5lK7g/JLyDX7YVDazqMdubv+JrncVzgH+60gF4SLF+pHGwhESAG:K

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Sets service image path in registry

    • 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

    • Loads dropped DLL

    • Hide Artifacts: Hidden Window

      Windows that would typically be displayed when an application carries out an operation can be hidden.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks