Overview

overview

10

Static

static

10

payload.dll.exe

windows7-x64

10

payload.dll.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    payload.dll.exe

  • Size

    45KB

  • Sample

    230104-a73cbsgf7z

  • MD5

    bfb1dcba649431a822b426c8830f2d03

  • SHA1

    731a34c0cc84da650b730b4b14912ccad42f7685

  • SHA256

    a71286ed9bc67a7bc404b462229db4cb869d36b84f41bfbc36a9227759ed434c

  • SHA512

    fd2e88ff79b8393ff96a9f7ee0c96bcfd24c31cd0a186548918ed42f3990e193059512e768117b95832d722c1194c06030959b80a5e16f37ce3e453add3ba809

  • SSDEEP

    768:wu/JRToSkobbWUnWCimo2qBrKjGKG6PIyzjbFgX3iAFXtv9nyb2UpfSBDZ6x:wu/JRT3T82MKYDy3bCXSOXtvN0dtsd6x

Score
10/10
asyncratquasarbtctryratspywarestealertrojan

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

TRY

C2

1bxb.ddns.net:6606

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://elevateworkforce.com/.END.txt

Extracted

Family

quasar

Version

1.3.0.0

Botnet

BTC

C2

newqs.ddns.net:6666

Mutex

QSR_MUTEX_yXXdA121x1YpxYg8uW

Attributes
  • encryption_key

    HFwfuOKEk3Fb6O6wDQ4B

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      payload.dll.exe

    • Size

      45KB

    • MD5

      bfb1dcba649431a822b426c8830f2d03

    • SHA1

      731a34c0cc84da650b730b4b14912ccad42f7685

    • SHA256

      a71286ed9bc67a7bc404b462229db4cb869d36b84f41bfbc36a9227759ed434c

    • SHA512

      fd2e88ff79b8393ff96a9f7ee0c96bcfd24c31cd0a186548918ed42f3990e193059512e768117b95832d722c1194c06030959b80a5e16f37ce3e453add3ba809

    • SSDEEP

      768:wu/JRToSkobbWUnWCimo2qBrKjGKG6PIyzjbFgX3iAFXtv9nyb2UpfSBDZ6x:wu/JRT3T82MKYDy3bCXSOXtvN0dtsd6x

    Score
    10/10
    asyncrattryratspywarestealerquasarbtctrojan

    • 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

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • 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

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks