Overview

overview

10

Static

static

3

a1d508edff...3N.exe

windows7-x64

10

a1d508edff...3N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a1d508edff87a505a4349f82aa50ab3fe657a44e4a4613b0eb63d5e8d01b8723N.exe

  • Size

    876KB

  • Sample

    241124-x4rsravncz

  • MD5

    81cb7328f6e4c75fbbfbc328fdb21df0

  • SHA1

    c086e182fb08a835e51125f0d997af0155d1d0a2

  • SHA256

    a1d508edff87a505a4349f82aa50ab3fe657a44e4a4613b0eb63d5e8d01b8723

  • SHA512

    7ea8623c8e17eac7b5451b69ffa5eb98888e7ffac6e1b00e1681881812bb9de308086ce01e2f65a32ba3f16bf20f2826fc55b5e159fc18a32a52191e82970a27

  • SSDEEP

    12288:6COzWsvIDqNc4Gqu7x5BRd6CMWMpFY0wjTyE9OXcg6VpUoME4KN6eclg5QU:BOzxiqgjx5TddMWM0/83UDMTKgw

Score
10/10
quasaraoydiscoveryspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

AOY

C2

87.120.120.27:61540

127.0.0.1:61540

87.121.86.205:61541
Mutex

QSR_MUTEX_NOCv4TURf46HbVbxyc

Attributes
  • encryption_key

    fVsndNhImy9VosyZSQbQ

  • install_name

    updates.exe

  • log_directory

    Logs

  • reconnect_delay

    4000

  • startup_key

    Windows Update

  • subdirectory

    Windows

Targets

    • Target

      a1d508edff87a505a4349f82aa50ab3fe657a44e4a4613b0eb63d5e8d01b8723N.exe

    • Size

      876KB

    • MD5

      81cb7328f6e4c75fbbfbc328fdb21df0

    • SHA1

      c086e182fb08a835e51125f0d997af0155d1d0a2

    • SHA256

      a1d508edff87a505a4349f82aa50ab3fe657a44e4a4613b0eb63d5e8d01b8723

    • SHA512

      7ea8623c8e17eac7b5451b69ffa5eb98888e7ffac6e1b00e1681881812bb9de308086ce01e2f65a32ba3f16bf20f2826fc55b5e159fc18a32a52191e82970a27

    • SSDEEP

      12288:6COzWsvIDqNc4Gqu7x5BRd6CMWMpFY0wjTyE9OXcg6VpUoME4KN6eclg5QU:BOzxiqgjx5TddMWM0/83UDMTKgw

    Score
    10/10
    quasaraoydiscoveryspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks