Overview

overview

10

Static

static

10

sxr-powershell.exe

windows10-2004-x64

10

Resubmissions

29-04-2024 18:22

240429-wz9x4ahf5s 10

29-04-2024 18:20

240429-wy7fkshc54 10

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General

  • Target

    sxr-powershell.exe

  • Size

    413KB

  • Sample

    240429-wy7fkshc54

  • MD5

    16ca1837307fc5854e157b074187c45f

  • SHA1

    aceab2cc8b9e04a98a3833cc5958df313621a95d

  • SHA256

    64ab43839c061a483d72f1ec01ab8488e482283014de88887937befe3abcb971

  • SHA512

    f32c203b0cdc9fc77378289708fcf8a2149ddc11258617b5482f005f56fa7e1c7d23c29c8a7c2fd2f184644dcd68ef8c8409fe1b4e4fda3f7a0f564b8175c8ef

  • SSDEEP

    6144:RNmEjkzQT1TVN9Dnc2b+VyPX489mbjIbLGYXr3tMfpDsXZ/Dbf/m/cjqOGa:31TVVMq+4PX488kLPXz2pDGXfUcjxGa

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

Office04

C2

147.185.221.19:33587

Mutex

$Sxr-h0ICVjHNrcHhzPpdBF

Attributes
  • encryption_key

    5AYOUFuXYMmH4RkMAuQz

  • install_name

    $sxr-powershell.exe

  • log_directory

    $sxr-powershell

  • reconnect_delay

    3000

  • startup_key

    $sxr-metsha

  • subdirectory

    sxr

Targets

    • Target

      sxr-powershell.exe

    • Size

      413KB

    • MD5

      16ca1837307fc5854e157b074187c45f

    • SHA1

      aceab2cc8b9e04a98a3833cc5958df313621a95d

    • SHA256

      64ab43839c061a483d72f1ec01ab8488e482283014de88887937befe3abcb971

    • SHA512

      f32c203b0cdc9fc77378289708fcf8a2149ddc11258617b5482f005f56fa7e1c7d23c29c8a7c2fd2f184644dcd68ef8c8409fe1b4e4fda3f7a0f564b8175c8ef

    • SSDEEP

      6144:RNmEjkzQT1TVN9Dnc2b+VyPX489mbjIbLGYXr3tMfpDsXZ/Dbf/m/cjqOGa:31TVVMq+4PX488kLPXz2pDGXfUcjxGa

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Command and Scripting Interpreter

1
T1059

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks