Overview

overview

10

Static

static

8

Comprobant...go.xls

windows7_x64

10

Comprobant...go.xls

windows10_x64

10

Sharing

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General

  • Target

    Comprobante de pago.xls

  • Size

    109KB

  • Sample

    211023-f51cvadagl

  • MD5

    271ba3d36cd7425438355af48c600e20

  • SHA1

    4a7f399ac4e8420b73a8274003eac6a1ffc31fb0

  • SHA256

    a1f309adfabcda9c7f1badc025f7756f7dd8ff9da3529dee09044df6e7d177df

  • SHA512

    33e842c5c2eefb7e40d8f651535539cc151460106407501b22eb50cc7af4347db8048238c4d9387c8c3ac5b9158a532ceb07d37c2dd269da6c68de726921faad

Score
10/10
quasarcriokmacromacro_on_actionspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Criok

C2

ildriendfrirotoi.zapto.org:61790

fruitingsuccess.ignorelist.com:61789
Mutex

QSR_MUTEX_JS7TIscSksvJKrLXxw

Attributes
  • encryption_key

    7RWfQmQNDJPIz1c1QtI1

  • install_name

    Updater.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Update

  • subdirectory

    Windows

Targets

    • Target

      Comprobante de pago.xls

    • Size

      109KB

    • MD5

      271ba3d36cd7425438355af48c600e20

    • SHA1

      4a7f399ac4e8420b73a8274003eac6a1ffc31fb0

    • SHA256

      a1f309adfabcda9c7f1badc025f7756f7dd8ff9da3529dee09044df6e7d177df

    • SHA512

      33e842c5c2eefb7e40d8f651535539cc151460106407501b22eb50cc7af4347db8048238c4d9387c8c3ac5b9158a532ceb07d37c2dd269da6c68de726921faad

    Score
    10/10
    quasarcriokspywaretrojan

    • Quasar Payload

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Downloads MZ/PE file

    • 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 Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks