Overview

overview

10

Static

static

1

Uni.bat

windows7-x64

10

Uni.bat

windows10-1703-x64

10

Uni.bat

windows10-2004-x64

10

Uni.bat

windows11-21h2-x64

10

Sharing

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General

  • Target

    Uni.bat

  • Size

    670KB

  • Sample

    240508-vtaelshb45

  • MD5

    6a80458e28d1386f08bbd333e223ec19

  • SHA1

    77ab8b6fa59cc618bf4a5e7f52ffcd8f5c9656a8

  • SHA256

    8711245a4e790f4e757f4657e0edd3ff36cd767293e60b56d8e8501bca9c8a3d

  • SHA512

    e6db2882538d6b563aaeb8df1831ea8c90dd37242fe686e9ab0b80f9c397bdfdf3596b28b036ac9308c456257e7a3cc607657c4e98853647e85d23f8b1588d81

  • SSDEEP

    12288:3X+4dH3qy2pEKjy2YkbOtscQeH8XDYTDL832UtYnUg3:H+4dH3enjy2ZbOzTceUq

Score
10/10
quasarslavespywaretrojan

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

SLAVE

C2

even-lemon.gl.at.ply.gg:33587

Mutex

$Sxr-dOMA5C0pQTTpKjVsCp

Attributes
  • encryption_key

    UBXs44u6E81wxBGZxQHk

  • install_name

    $sxr-powershell.exe

  • log_directory

    $SXR-KEYLOGS

  • reconnect_delay

    3000

  • startup_key

    $sxr-powershell

  • subdirectory

    $sxr-seroxen2

Targets

    • Target

      Uni.bat

    • Size

      670KB

    • MD5

      6a80458e28d1386f08bbd333e223ec19

    • SHA1

      77ab8b6fa59cc618bf4a5e7f52ffcd8f5c9656a8

    • SHA256

      8711245a4e790f4e757f4657e0edd3ff36cd767293e60b56d8e8501bca9c8a3d

    • SHA512

      e6db2882538d6b563aaeb8df1831ea8c90dd37242fe686e9ab0b80f9c397bdfdf3596b28b036ac9308c456257e7a3cc607657c4e98853647e85d23f8b1588d81

    • SSDEEP

      12288:3X+4dH3qy2pEKjy2YkbOtscQeH8XDYTDL832UtYnUg3:H+4dH3enjy2ZbOzTceUq

    Score
    10/10
    quasarslavespywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Downloads MZ/PE file

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Legitimate hosting services abused for malware hosting/C2

    • 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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2behavioral3behavioral4

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks