Overview

overview

10

Static

static

10

SolaraBoot...er.exe

windows7-x64

10

SolaraBoot...er.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    SolaraBootstrapper.exe

  • Size

    3.1MB

  • Sample

    240702-b37lxs1hpa

  • MD5

    d1fa508b46362032225fd17c5bb85859

  • SHA1

    7690e280c35cb4bf9a71aaad70ff4885393e680a

  • SHA256

    f422a9717bc7a77fe867c28c7841e46f20d55157338f4faa5e5f56c8e07b22e7

  • SHA512

    d1613ea3284a8cf4032632a5594f4d995deb25473cf76c8efd763dbf8fbc8a7e9345d5d3c3aca179773a42a6cb1932c97e3633747ad4d197fc54646dfe9fc184

  • SSDEEP

    49152:TvHlL26AaNeWgPhlmVqvMQ7XSKWLRJ6EbR3LoGdiSTHHB72eh2NT:TvFL26AaNeWgPhlmVqkQ7XSKWLRJ6O

Score
10/10
quasarsolarabootstrapperspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

SolaraBootstrapper

C2

DESKTOP-JVK5CI7:4782

Mutex

39c5c45c-62a0-4623-a904-5cbad2aa6b55

Attributes
  • encryption_key

    41AD0502F025DD3F47720DC4BDEED540F3EAFD12

  • install_name

    securekerneI.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Update

  • subdirectory

    SubDir

Targets

    • Target

      SolaraBootstrapper.exe

    • Size

      3.1MB

    • MD5

      d1fa508b46362032225fd17c5bb85859

    • SHA1

      7690e280c35cb4bf9a71aaad70ff4885393e680a

    • SHA256

      f422a9717bc7a77fe867c28c7841e46f20d55157338f4faa5e5f56c8e07b22e7

    • SHA512

      d1613ea3284a8cf4032632a5594f4d995deb25473cf76c8efd763dbf8fbc8a7e9345d5d3c3aca179773a42a6cb1932c97e3633747ad4d197fc54646dfe9fc184

    • SSDEEP

      49152:TvHlL26AaNeWgPhlmVqvMQ7XSKWLRJ6EbR3LoGdiSTHHB72eh2NT:TvFL26AaNeWgPhlmVqkQ7XSKWLRJ6O

    Score
    10/10
    quasarsolarabootstrapperspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks