Overview

overview

10

Static

static

10

AsyncClient.exe

windows7-x64

10

AsyncClient.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    AsyncClient.exe

  • Size

    49KB

  • Sample

    240425-svjzbsca2x

  • MD5

    2212a4c5cd3a3012739a65507c737c8c

  • SHA1

    20fd391cb48dff66744adba581bcb63d9f6ca41b

  • SHA256

    614a45f2607a3c9ff7b38a7028fa33cd80147ba95b9ff4454569fda5bf8f5c58

  • SHA512

    58aecb7896114b2fca08a567596cce53d739fc8027975e8a074ed5b34cd232a3e4699fd531a35f3abf8d4146467719a87692ebbaedc4e95d6ca03a8cf6a98665

  • SSDEEP

    1536:Eu+01TQfb2Dyr32cofCbjIMvceHmdmSB:Eu+ATQfb2mr32coqbjmxkSB

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

toys-hull.gl.at.ply.gg:36526

Mutex

EbIIsvtOm8b1

Attributes
  • delay

    3

  • install

    true

  • install_file

    RuntimeBroker.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      AsyncClient.exe

    • Size

      49KB

    • MD5

      2212a4c5cd3a3012739a65507c737c8c

    • SHA1

      20fd391cb48dff66744adba581bcb63d9f6ca41b

    • SHA256

      614a45f2607a3c9ff7b38a7028fa33cd80147ba95b9ff4454569fda5bf8f5c58

    • SHA512

      58aecb7896114b2fca08a567596cce53d739fc8027975e8a074ed5b34cd232a3e4699fd531a35f3abf8d4146467719a87692ebbaedc4e95d6ca03a8cf6a98665

    • SSDEEP

      1536:Eu+01TQfb2Dyr32cofCbjIMvceHmdmSB:Eu+ATQfb2mr32coqbjmxkSB

    Score
    10/10
    asyncratdefaultrat

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

      ratasyncrat

    • Async RAT payload

      rat

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks