Overview

overview

10

Static

static

1

kk.bat

windows10-1703-x64

10

kk.bat

windows7-x64

7

Sharing

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General

  • Target

    kk.bat

  • Size

    182KB

  • Sample

    230209-rzzpxafh6x

  • MD5

    df4da1ecd4c50871a1c4315f571e4402

  • SHA1

    1dbbe9b3784cf5ecdd08b27132a7e31588954865

  • SHA256

    9800bef9d4936ee96d4872fb686121dd7209f8b529e9bdc833c4fe54bb68f5c8

  • SHA512

    5f9e47f865c48cb1f2070d5d393a5d3494074bfe2347e07c988d06c8244dd420181c210a8ebdd54f768a64a5906d0c9e3be271d44f6e5bd32991bc2cacf85d3e

  • SSDEEP

    3072:ur2RTVYk0bjRtZLlnm6Gdk8vZQfjO8KifQ6vfegRI8mlgJJ4u6A0FzfghYE:BRiltZITy8ufjLQsBUlgeMYE

Score
10/10
asyncratquasardefaultoffice04ratspywaretrojan

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

207.244.236.205:6606

207.244.236.205:7707

207.244.236.205:8808
Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04

C2

quasharr.ddns.net:4782

quasharr21.ddns.net:4782

quasharr22.ddns.net:4782

quasharr33.ddns.net:4782
Mutex

1f1a8604-757c-4251-9294-1b6985c3c1c7

Attributes
  • encryption_key

    2D1A3994D3C8E5C6071E7048589030F3E389DDC7

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows

  • subdirectory

    SubDir

Targets

    • Target

      kk.bat

    • Size

      182KB

    • MD5

      df4da1ecd4c50871a1c4315f571e4402

    • SHA1

      1dbbe9b3784cf5ecdd08b27132a7e31588954865

    • SHA256

      9800bef9d4936ee96d4872fb686121dd7209f8b529e9bdc833c4fe54bb68f5c8

    • SHA512

      5f9e47f865c48cb1f2070d5d393a5d3494074bfe2347e07c988d06c8244dd420181c210a8ebdd54f768a64a5906d0c9e3be271d44f6e5bd32991bc2cacf85d3e

    • SSDEEP

      3072:ur2RTVYk0bjRtZLlnm6Gdk8vZQfjO8KifQ6vfegRI8mlgJJ4u6A0FzfghYE:BRiltZITy8ufjLQsBUlgeMYE

    Score
    10/10
    asyncratquasardefaultoffice04ratspywaretrojan

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Async RAT payload

      rat

    • Drops startup 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.

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks