Overview

overview

10

Static

static

1

mrBm8Y3.bat

windows7-x64

8

mrBm8Y3.bat

windows10-2004-x64

10

Sharing

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General

  • Target

    mrBm8Y3.bat

  • Size

    586KB

  • Sample

    240612-vz4kmsxapm

  • MD5

    3f2ff12924a2e6b1f1f620730af14a1f

  • SHA1

    9b96ce86949bfa7a6b4fbcfcca244351363c2d2c

  • SHA256

    e3b9b4050f8c00bc5ab2cb09859ecfc623e1f82ed9dde434da04231f61f0cc2d

  • SHA512

    4e068b5f06cd7b7c7f9abe66f3df1b439b486d93e6c9bed909390ae2e1c9009a0efcece1563fb92d548c8c63fcc675657adcf83e01e21c8903e2895790d7c8b0

  • SSDEEP

    12288:h2kXaWZMrh7XcHgycdfYK1juRasp5AZBAU+2LIl:h2kKWS+gy8eqP0l

Score
10/10
quasarslaveexecutionspywaretrojan

Malware Config

Extracted

Family

quasar

Version

3.0.0

Botnet

Slave

C2

runderscore00-37568.portmap.host:37568

Mutex

QSR_MUTEX_iprdkSELqVacGNZeWS

Attributes
  • encryption_key

    tiqC8HadqR4q5ImAfm0o

  • install_name

    $sxr-powershell.exe

  • log_directory

    $sxr-Logs

  • reconnect_delay

    3000

  • startup_key

    Powershell

  • subdirectory

    $sxr-seroxen2

Targets

    • Target

      mrBm8Y3.bat

    • Size

      586KB

    • MD5

      3f2ff12924a2e6b1f1f620730af14a1f

    • SHA1

      9b96ce86949bfa7a6b4fbcfcca244351363c2d2c

    • SHA256

      e3b9b4050f8c00bc5ab2cb09859ecfc623e1f82ed9dde434da04231f61f0cc2d

    • SHA512

      4e068b5f06cd7b7c7f9abe66f3df1b439b486d93e6c9bed909390ae2e1c9009a0efcece1563fb92d548c8c63fcc675657adcf83e01e21c8903e2895790d7c8b0

    • SSDEEP

      12288:h2kXaWZMrh7XcHgycdfYK1juRasp5AZBAU+2LIl:h2kKWS+gy8eqP0l

    Score
    10/10
    executionquasarslavespywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Checks computer location settings

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

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks