Overview

overview

10

Static

static

10

AsyncClient.exe

windows7-x64

10

AsyncClient.exe

windows10-2004-x64

10

Resubmissions

05-06-2023 15:07

230605-shb3yshc58 10

05-06-2023 14:59

230605-scshrahc39 10

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General

  • Target

    AsyncClient.exe

  • Size

    45KB

  • Sample

    230605-scshrahc39

  • MD5

    11c12e50d5c5b0ae6578f770bfb41671

  • SHA1

    87c61e6cad8bf6be174e087784bc5f204648ebe7

  • SHA256

    e2be314cb5392f83e23694be4e43326f746e0067012a5f423d72b2ecc3bb1575

  • SHA512

    b9c0a081c9c2efb87fc34877d508d0bc7a0504882fd04716535cfb6cea3e5dfe64e7ea834f444903de3f334d625f3a45c58508d68c6ee9853dd60d13e10f463a

  • SSDEEP

    768:ju0OVTBRlc6nWUbmelmo2qjrKjGKG6PIyzjbFgX3i9PjHrVFvyrLxBDZjx:ju0OVTBnck26KYDy3bCXSpjHrVdyrrdd

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

127.0.0.1:15491

127.0.0.1:8080

195.78.54.247:15491

195.78.54.247:8080

2.tcp.eu.ngrok.io:15491

2.tcp.eu.ngrok.io:8080

Attributes
  • delay

    3

  • install

    true

  • install_file

    awdawd.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      AsyncClient.exe

    • Size

      45KB

    • MD5

      11c12e50d5c5b0ae6578f770bfb41671

    • SHA1

      87c61e6cad8bf6be174e087784bc5f204648ebe7

    • SHA256

      e2be314cb5392f83e23694be4e43326f746e0067012a5f423d72b2ecc3bb1575

    • SHA512

      b9c0a081c9c2efb87fc34877d508d0bc7a0504882fd04716535cfb6cea3e5dfe64e7ea834f444903de3f334d625f3a45c58508d68c6ee9853dd60d13e10f463a

    • SSDEEP

      768:ju0OVTBRlc6nWUbmelmo2qjrKjGKG6PIyzjbFgX3i9PjHrVFvyrLxBDZjx:ju0OVTBnck26KYDy3bCXSpjHrVdyrrdd

    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

    • Legitimate hosting services abused for malware hosting/C2

    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

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Tasks